In this Vehicle Platform Guide, you will find the top common issues of Mercedes-Benz GL450 (X164; 2007-2012) 4.7L Naturally-Aspirated V8, along with their fault codes, and the solutions from eEuroparts.com.
The 2007-2012 Mercedes-Benz GL450 (X164) 4.7L Naturally-Aspirated V8 is a full-size luxury SUV that blends robust V8 performance with spacious 7-passenger comfort and off-road capability. Powered by a 4.7L V8 gasoline engine (M273 E47), it produces 335 horsepower and 339 lb-ft (460 Nm) of torque. Mated to a 7-speed 7G-TRONIC automatic transmission and Mercedes’ 4MATIC all-wheel drive system.
Specifications
Engine and Powertrain
Engine:
4.7L V8 Naturally Aspirated
Engine Code:
M273.923
Horsepower:
335 hp @ 6,000 rpm
Torque:
339 lb-ft @ 2,700-5,000 rpm
Fuel Type:
Gasoline
Transmission:
7-Speed Automatic (7G-TRONIC)
Fuel Economy (EPA Estimates)
City/Highway Combined:
~13-18 MPG
Vehicle Weight
Curb Weight:
~ 5,500 lbs
Gross Weight:
~ 7,400 lbs
Configurations and Submodels
Body Styles:
SUV
Seating Capacity:
7
Drivetrain Options:
4MATIC All-Wheel Drive (AWD)
Top Common Issues with Mercedes-Benz GL450 (X164; 2007-2012) 4.7L Naturally-Aspirated V8
Brake Fluid Pressure Sensor
1. Brake Light Switch Failure
Fault Codes:
P0571 indicates a cruise control/brake switch circuit malfunction, often caused by a faulty brake pedal switch, damaged wiring, or poor electrical connections.
Why it happens:
Brake light switch failure typically occurs due to wear and tear, corrosion, electrical faults, or misalignment, often triggered by moisture intrusion, aging components, or incorrect installation.
Symptoms:
Brake lights stay on - Even when the pedal isn’t pressed, causing battery drain and safety issues.
Brake lights don’t illuminate - No lights when braking, increasing rear-end collision risk.
Gear selector stuck in Park - The shift interlock system may prevent moving out of Park without brake input.
Vehicle won’t start - Especially in push-start systems that require brake pedal input to engage the starter.
Dashboard warning lights - ABS, traction control, or cruise control lights may illuminate due to signal loss.
Intermittent or flickering brake lights - Caused by a failing or loose switch connection.
C1526 indicates a left rear ride height sensor fault, often due to circuit issues or incorrect mounting, while C156E flags a ride height system calibration error.
Why it happens:
AIRMATIC air suspension compressor failure typically occurs due to moisture intrusion, worn piston seals, clogged filters, or overuse from air leaks, all of which strain the compressor and lead to overheating or internal damage.
Symptoms:
Sagging or uneven ride height - One or more corners of the vehicle may sit noticeably lower, especially after being parked overnight.
Delayed or failed lift - The vehicle takes too long to rise after startup, or fails to lift at all.
Harsh or bouncy ride - Loss of damping control due to insufficient air pressure results in a rough, unstable ride.
Frequent compressor operation - The compressor runs excessively or continuously, often due to air leaks or internal inefficiency.
Unusual compressor noises - Loud humming, buzzing, or clicking sounds may indicate internal wear or overexertion.
Dashboard warning lights - Messages like “AIRMATIC Visit Workshop” or suspension fault warnings appear when the system detects pressure or sensor issues.
Vehicle leaning while driving - The car may tilt or feel unstable during turns due to uneven air distribution or failed level control.
Compressor (with Semi-Active Air Suspension) 164320120480 - P3214 The Arnott Industries Air Suspension Compressor part number P-3214 is perfect for Mercedes-Benz vehicles and is compatible with a range of part numbers such as 1643200004, 1643200204, 1643200304 and 1643200504.
C1525 indicates brake or ride height system initialization is incomplete, C156E flags a level control calibration error, and C1511 points to a torque sensor malfunction.
Why it happens:
Air suspension solenoid valve unit failure typically occurs due to contamination from compressor wear debris, moisture ingress, or electrical faults, which block or disable air flow regulation to the suspension struts.
Symptoms:
Uneven ride height - One or more corners of the vehicle sit lower than others, often after parking overnight.
Slow or no response to height adjustments - The vehicle may fail to raise/lower promptly or remain stuck at a fixed height.
Frequent compressor cycling - The compressor runs excessively to compensate for air loss or blocked air flow.
Vehicle leans or sags intermittently - Especially noticeable during turns or after hitting bumps.
Air suspension warning lights - Dashboard alerts like “AIRMATIC Visit Workshop” or level control system faults.
Noisy or strained compressor - Caused by blocked solenoids forcing the compressor to overwork.
Air leaks that shift position - If swapping air lines causes the sag to move, it points to a faulty valve block rather than a leaking strut.
Mercedes Air Suspension Solenoid Valve Unit K-2899 The Arnott Industries Air Suspension Solenoid Valve Unit part number K-2899 for Mercedes-Benz is a high-quality replacement part designed to ensure your vehicle’s air suspension system stays in optimal working condition.
C1560 indicates a CAN communication fault affecting vehicle speed data, while C1556 points to a ride height air pressure sensor circuit issue.
Why it happens:
Suspension level sensor failure typically occurs due to mechanical wear, corrosion, broken linkages, or electrical faults, often triggered by road debris, moisture intrusion, or aging components.
Symptoms:
Uneven ride height - One side or corner of the vehicle may sit noticeably higher or lower than the others.
Dashboard warnings - Messages like “Level Control System Malfunction” or suspension fault icons may appear.
Sagging after parking - The vehicle may lower overnight, especially at the rear, due to incorrect sensor feedback.
Rough or bouncy ride - The suspension may not adjust properly to road conditions, leading to poor ride quality.
Compressor overrun - The air compressor may run excessively or fail to engage due to incorrect height readings.
Hissing sounds - Air escaping from the suspension system may be heard if the sensor causes improper valve operation.
Chassis stabilization errors - Alerts like “Chassis Stabilization Malfunction” may appear, especially in BMW or Mercedes models.
P0335 and P0336 both indicate crankshaft position sensor issues - P0335 signals a circuit malfunction, while P0336 points to range or performance faults.
Why it happens:
Crankshaft position sensor failure typically occurs due to heat damage, vibration, oil contamination, or wiring faults, disrupting engine timing signals.
Symptoms:
Check engine light - Often the first clue, triggered by codes like P0335 or P0336.
Hard starting or no-start - The engine may crank but fail to fire due to missing timing signals.
Engine stalling - Sudden loss of signal can cause the engine to shut off while driving or idling.
Rough idle or misfires - Inconsistent sensor data disrupts spark timing and fuel delivery.
Poor acceleration - Hesitation or sluggish throttle response from incorrect ignition timing.
Reduced fuel efficiency - The ECU may default to conservative fueling strategies.
Vibrations or shaking - Especially at idle, due to misfiring or poor combustion synchronization.
Crankshaft Sensor Part # 9444190 The OEM Engine Crankshaft Position Sensor part number 9444190 for Mercedes-Benz is an essential component of the engine’s electronic system.
NTK Mercedes Engine Crankshaft Position Sensor EH0028 The NTK Engine Crankshaft Position Sensor part number EH0028 is the perfect solution for Mercedes-Benz owners who need a reliable and accurate sensor that can easily detect the position of the crankshaft.
P0010 and P0020 indicate intake camshaft position actuator circuit faults-P0010 on Bank 1, P0020 on Bank 2-typically tied to VVT solenoid or wiring issues.
Why it happens:
Camshaft adjuster solenoid failure typically results from oil contamination, poor maintenance, timing chain wear, or internal electrical faults, disrupting VVT operation.
Symptoms:
Check engine light - Often triggered by codes like P0010 or P0020 due to improper camshaft timing.
Rough idle - Irregular valve timing can cause unstable engine operation at idle.
Reduced fuel efficiency - Poor timing leads to inefficient combustion and increased fuel consumption.
Loss of power or hesitation - The engine may feel sluggish, especially under load or during acceleration.
Engine stalling - Inconsistent valve timing can cause the engine to stall unexpectedly.
Hard starting - Delayed or failed ignition timing may make the engine difficult to start.
Unusual engine noise - Ticking or knocking sounds may occur due to improper valve actuation.
P0300 signals random or multiple cylinder misfires, and P0301-P0308 specify misfires in cylinders 1 through 8 respectively; P0350 indicates a malfunction in the ignition coil primary/secondary circuit.
Why it happens:
Ignition coil failure typically occurs due to excessive heat, vibration, moisture intrusion, or worn spark plugs, all of which can lead to insulation breakdown, internal arcing, or coil overload.
Symptoms:
Engine misfires - Rough idle, hesitation, or jerking during acceleration due to incomplete combustion.
Check engine light - Often triggered with codes like P0300-P0308 or P0350, indicating misfire or coil circuit faults.
Hard starting or no start - Weak or no spark can prevent the engine from firing up.
Poor fuel economy - Unburned fuel from misfires leads to increased consumption.
Loss of power - Noticeable drop in acceleration or sluggish throttle response.
Backfiring or fuel smell - Unburned fuel igniting in the exhaust system.
Rough idle - Engine shakes or vibrates while idling, especially when warm.
Increased emissions - Failed combustion leads to higher hydrocarbon output.
Parts to Replace
Bosch Mercedes Ignition Coil 2729060060 -0986221058 is a high-quality, direct replacement designed to deliver consistent spark performance across a wide range of Mercedes-Benz models equipped with M272 and M273 engines.
C249F: SBC unit expired; C2336: ABS rear right valve fault; U0416: Invalid vehicle dynamics data disrupts ESP or steering.
Why it happens:
Power steering control valve failure typically occurs due to internal seal wear, fluid contamination, or corrosion, which disrupts hydraulic pressure regulation and leads to steering stiffness or fluid leaks.
Symptoms:
Leaking power steering fluid - Often visible as puddles under the vehicle; fluid may smell burnt or appear amber-colored.
Difficulty turning the wheel - Especially at low speeds or when parking, due to reduced hydraulic pressure.
Whining or squealing noises - Heard while turning the steering wheel, caused by fluid flow restriction or cavitation.
Loss of power assist - Steering feels heavy or unresponsive, particularly during tight maneuvers.
Increased steering effort at idle - The valve may fail to direct fluid properly when engine RPM is low.
Delayed steering response - The vehicle may hesitate or feel sluggish when changing direction.
Parts to Replace
Mercedes Steering Gear Repair Kit 1644601300 The Genuine Mercedes-Benz Power Steering Control Valve (part number 1644601300 / 164 460 13 00) is an essential component for your Mercedes-Benz vehicle’s power steering system.
Power steering pump failure typically occurs due to low or contaminated fluid, worn internal components, or excessive pressure.
Symptoms:
Heavy or stiff steering - The wheel becomes hard to turn, especially at low speeds or when parking.
Whining or squealing noises - Often heard when turning the wheel or starting the engine, caused by fluid starvation or internal wear.
Groaning or knocking sounds - Indicate cavitation or internal damage within the pump.
Leaking power steering fluid - Visible under the vehicle or around the pump; fluid may appear reddish or amber.
Jerky or uneven steering response - The wheel may feel inconsistent or resist movement intermittently.
Foamy or discolored fluid - Suggests air ingress or contamination, often due to pump or seal failure.
Burning smell - Overheating fluid from a failing pump can emit a sharp, acrid odor.
Parts to Replace
Mercedes Power Steering Pump 50410242 is a direct-fit hydraulic pump designed to restore smooth, responsive steering in select Mercedes-Benz SUV models.
Mercedes Power Steering Pump - KS01000604 is a remanufactured OE-spec hydraulic pump designed to restore smooth, responsive steering in a variety of Mercedes-Benz models.
Tie rod end wear typically occurs due to lack of lubrication, impact from potholes or curbs, or torn dust boots allowing contamination.
Symptoms:
Uneven tire wear - Often shows as excessive wear on the inner or outer edges due to misalignment.
Loose or unresponsive steering - You may feel excessive play or a vague steering response, especially at highway speeds.
Steering wheel vibration - Noticeable shaking, especially while turning or accelerating, caused by looseness in the steering linkage.
Vehicle pulling to one side - Misalignment from a worn tie rod can cause the car to drift left or right.
Clunking or knocking noises - Especially when turning or driving over bumps, due to excessive joint play.
Poor alignment retention - Frequent need for realignment or inability to maintain proper toe settings.
Parts to Replace
Front Passenger Side Outer 1643301203 is a critical steering component that connects the steering rack to the steering knuckle, allowing precise wheel movement and alignment.
Front (Passenger Side) (Outer) 1643301203 The Bison Performance Steering Tie Rod End, part number BPSS20203, is a high-quality replacement part designed specifically for your Mercedes-Benz vehicle.
Rack and pinion below failure typically occurs due to age-related cracking, road debris impact, or torn boots, which allow dirt and moisture to enter and damage the steering rack.
Symptoms:
Visible cracks or tears in the boot - Often spotted during inspection; allows dirt and moisture to enter.
Grease or fluid leakage near the tie rod ends - Indicates the bellow is no longer sealing properly.
Clunking or knocking noises - Caused by contamination or wear in the inner tie rod or rack gear.
Steering stiffness or binding - Dirt ingress can cause internal friction or corrosion in the rack.
Uneven or accelerated tire wear - Misalignment from internal wear due to bellow failure.
Steering wander or looseness - Excessive play from worn internal components exposed to debris.
Parts to Replace
OEM Mercedes Tie Rod Boot - Front Inner 1644600096 The Genuine Mercedes-Benz Rack and Pinion Bellows (part number 1644600096 / 164 460 00 96) is an excellent replacement part for your Mercedes-Benz vehicle.
Intermediate steering shaft binding typically occurs due to worn or corroded universal joints, dried-out splines, or lack of lubrication, causing resistance or stiffness when turning the steering wheel.
Symptoms:
Steering wheel stiffness or resistance - Especially noticeable during low-speed turns or parking maneuvers.
Intermittent binding or sticking - The wheel may feel smooth at first, then suddenly resist mid-turn.
Clunking or popping noises - Often heard when turning the wheel, caused by worn or dry U-joints in the shaft.
Steering wheel not returning to center - After a turn, the wheel may not self-center smoothly.
Excessive play or looseness - A delay between steering input and wheel response, often due to worn splines or joints.
Vibration or rough feedback - Especially at highway speeds, caused by misalignment or internal shaft wear.
OEM Engine Intake Manifold Kit Part # 5141583-Kit The Engine Intake Manifold Kit #5141583-Kit is an OEM replacement part listed on eEuroparts, a supplier specializing in European vehicles like Audi, BMW, Mercedes, and VW.
An engine oil cooler seal leak typically occurs due to age-related hardening, thermal cycling, or improper installation, leading to oil seepage under pressure.
Symptoms:
Visible oil leaks - Oil spots or wetness near the oil cooler housing or under the vehicle.
Oil in coolant - Milky residue in the coolant reservoir, indicating oil contamination.
Coolant in oil - Foamy or milky oil on the dipstick, suggesting coolant intrusion.
Engine overheating - Loss of oil cooling efficiency can raise engine temperatures.
Burning oil smell - Oil seeping onto hot components may produce a distinct odor.
Check engine light - May illuminate due to temperature or pressure irregularities.
Reduced engine performance - Overheating or lubrication loss can cause sluggish response or misfires.
Parts to Replace
Filter Housing Cooler Part # 90933 The Nissens Engine Oil Cooler part number 90933 is the perfect fit for your Mercedes-Benz and is compatible with other part numbers 2721800110, 2721800210, 2721800410, and 2721800510.
Engine Oil Cooler 2721880001 - 90783 The Nissens Engine Oil Cooler part number 90783 is specifically designed for Mercedes-Benz vehicles that require an efficient engine oil cooling system.
MAHLE Mercedes Engine Oil Cooler CLC235000P The MAHLE Engine Oil Cooler part number CLC235000P is an essential component for Mercedes-Benz owners who are searching for a reliable and high-quality engine oil cooler replacement.
P0100, P0101, and P0102 all relate to MAF sensor circuit issues - P0100 flags a general malfunction, P0101 indicates performance out of range, and P0102 signals low input voltage.
Why it happens:
MAF sensor failure typically occurs due to dirt buildup on the sensing element, heat damage, or intake air leaks, leading to inaccurate airflow readings.
Symptoms:
Check engine light - Often triggered by codes like P0100, P0101, or P0102.
Rough idle or stalling - Inaccurate airflow readings disrupt fuel delivery, causing unstable idle or engine shutdown.
Hesitation or jerky acceleration - Poor throttle response due to incorrect air-fuel ratio.
Hard starting - Engine may crank longer or struggle to start, especially when cold.
Reduced engine power - Sluggish performance or poor RPM response under load.
Increased fuel consumption - The ECU may overcompensate, enriching the mixture.
Black smoke from exhaust - Over-fueling can lead to incomplete combustion.
Surging or bucking - Inconsistent airflow data causes erratic engine behavior.
Common codes include P0087 (Fuel Rail/System Pressure Too Low), P0088 (Fuel Pressure Too High), and P0230 (Fuel Pump Primary Circuit). These codes often signal that the fuel pump module is no longer maintaining the correct fuel pressure or is experiencing electrical control issues.
Why it happens:
The GL450 is known for heavy electrical load and heat buildup around the tank area. Over time, the fuel pump motor wears out, the fuel filter inside the module becomes restricted, or the fuel pump control module overheats, causing intermittent power delivery. Additionally, aging wiring, a failing relay, or contaminated fuel can gradually weaken pump performance until it can no longer maintain pressure,especially under acceleration.
Symptoms:
Here are the real-world signs drivers typically notice:
Long Crank or No Start: The engine struggles to fire up, especially after the vehicle has been sitting for a while.
Engine Stall While Driving: Sudden loss of power, particularly at highway speed or during heavy load.
Poor Acceleration: The GL450 may feel sluggish or hesitate when you press the accelerator.
Low Fuel Pressure: Diagnosed using a scan tool or fuel pressure gauge-pressure drops below specification.
Whining Noise From Rear: The pump may make a high-pitched whine as it begins to fail.
Check Engine Light: Often paired with fuel system pressure codes.
Hard Warm Restarts: After driving and shutting off briefly, the engine may crank long before starting.
P0620 flags a generator control circuit fault, while P2503 indicates low system voltage, often due to alternator or wiring problems.
Why it happens:
Alternator failure typically occurs due to worn bearings, heat stress, electrical overload, or damaged wiring, all of which disrupt power generation and battery charging.
Symptoms:
Battery warning light - Often the first sign, usually shaped like a battery or labeled “ALT” or “GEN.”
Dim or flickering headlights - Voltage fluctuations affect lighting, especially at idle.
Dead battery - A weak alternator can’t recharge the battery, leading to repeated no-starts.
Electrical accessory issues - Power windows, radio, or HVAC may behave erratically or shut off.
Engine stalling - Insufficient power supply can cause the engine to cut out while driving.
Burning rubber or electrical smell - May indicate belt slippage or internal alternator failure.
Unusual noises - Grinding or whining sounds from worn bearings or internal components.
Slow or unresponsive electronics - Dashboard lights, infotainment, or gauges may lag or reset.
Parts to Replace
Valeo 443272 - Alternator is a premium replacement part designed for Mercedes-Benz vehicles, providing a robust 180A output essential for powering the battery and electrical systems
P0615 indicates a starter relay circuit malfunction, typically caused by a faulty relay, damaged wiring, or a failing engine control module (ECM), often resulting in no-crank or intermittent starting issues.
Why it happens:
Starter motor failure typically results from worn brushes, solenoid issues, heat damage, or poor electrical connections, all of which prevent the motor from cranking the engine effectively.
Symptoms:
Clicking sound when turning the key - A single loud click or rapid clicking often signals solenoid or electrical issues.
Engine won’t crank - Dashboard lights may come on, but the engine doesn’t turn over at all.
Intermittent starting - Sometimes it starts, sometimes it doesn’t-often due to heat-soaked components or failing internal contacts.
Slow or labored cranking - The engine turns over sluggishly, pointing to worn brushes or internal resistance.
Grinding noise - Indicates the starter gear isn’t engaging the flywheel properly, which can damage both parts.
Freewheeling - A high-pitched whine without engine turnover, caused by a failed engagement between the starter and flywheel.
Smoke or burning smell - Overheating from excessive current draw or internal short circuits.
Starter stays engaged after engine starts - Causes a loud grinding noise and can quickly destroy the starter and flywheel.
Parts to Replace
Mercedes Starter Motor (Rebuilt) 006151590183 -SR0827X The Mercedes Starter Motor (Rebuilt) - Part #006151590183 / Bosch SR0827X is a premium remanufactured unit engineered for consistent starting performance across a wide range of Mercedes-Benz models.
New 006151590183 -SR0827N is a brand-new OE-quality unit designed for consistent and reliable starting performance across a wide range of Mercedes-Benz models.
B1004 typically flags a malfunction in the Diagnosis Sensor Unit (often tied to the airbag system), while B1005 indicates a similar issue, often due to wiring faults, poor connections, or internal sensor failure.
Why it happens:
Blower motor regulator failure typically occurs due to overheating from restricted airflow, moisture intrusion, corrosion, or excessive current draw from a failing blower motor.
Symptoms:
Fan only works on one speed - Often stuck on high or low, indicating the regulator isn’t modulating voltage properly.
No airflow from vents - Complete failure of the regulator can cut power to the blower motor entirely.
Inconsistent or intermittent fan operation - The blower may cut in and out, especially after warming up, due to thermal-related circuit failure.
Fan speed unresponsive to controls - Adjusting the fan setting has no effect, suggesting the regulator isn’t processing input signals.
Weak airflow despite high setting - The motor receives reduced voltage, limiting output even when set to max.
Blower works only when cold - A classic sign of thermal degradation in the regulator’s internal components.
Parts to Replace
OEM Mercedes Heater Fan Motor 1648350507 is a high-quality HVAC blower motor used in a wide range of Mercedes-Benz SUVs, particularly from the W164 and X164 platforms.
B10F6 indicates a rear right position lamp circuit fault, B1234 flags a short in the driver-side air mix control motor circuit, and P0530 points to a malfunction in the A/C refrigerant pressure sensor circuit.
Why it happens:
HVAC compressor failure typically occurs due to refrigerant leaks, electrical issues, dirty coils, or lack of maintenance, all of which increase internal stress and lead to overheating or mechanical breakdown.
Symptoms:
Warm air from vents - Even with the A/C on, the system may blow warm or fluctuating air due to poor refrigerant compression.
Loud or unusual noises - Grinding, screeching, or clattering sounds often signal internal wear or bearing failure.
Compressor clutch not engaging - The clutch may fail to activate, preventing the compressor from cycling on.
Visible refrigerant leaks - Oil or dye traces around the compressor housing can indicate seal failure.
Reduced airflow - Weak or inconsistent airflow may result from a struggling compressor unable to maintain pressure.
7G-Tronic valve body solenoid failure typically occurs due to fluid contamination, overheating, or internal wear in the conductor plate
Symptoms:
Harsh or delayed gear shifts - Especially during 2-3 or 4-5 transitions, often accompanied by a noticeable jolt or flare.
Gear slipping or no engagement - Transmission may fail to engage forward or reverse gears, or slip under load.
Stuck in one gear (limp mode) - The transmission locks into a single gear (usually 2nd or 3rd) to protect itself from further damage.
Erratic or unpredictable shifting - Inconsistent upshifts/downshifts, often worsening as the transmission warms up.
Check Engine Light or Transmission Warning - Often triggered by codes like P0717, P0720, P2714, or P0750-P0770.
Failure to downshift properly - Especially noticeable when slowing down or coming to a stop.
Increased transmission fluid temperature - Caused by solenoid inefficiency or hydraulic pressure loss.
Parts to Replace
Mercedes Solenoid Valve F026001015 The Bosch Automatic Transmission Valve Body Solenoid, part number F026001015 / F-026-001-015, is a high-quality replacement part that is designed to ensure the smooth operation of your Mercedes-Benz.
Mercedes Solenoid Valve F026001014 The Bosch Automatic Transmission Valve Body Solenoid, part number F026001014 / F-026-001-014 is the perfect fit for your Mercedes-Benz vehicle with part number 220 277 09 98.
Transmission mount failure typically occurs due to rubber degradation from age, fluid contamination, or excessive drivetrain movement from aggressive driving or impacts.
Symptoms:
Clunking or banging noises - Especially during acceleration, deceleration, or gear changes, as the transmission shifts excessively.
Excessive vibration - Felt through the cabin, floor, or gear shifter, particularly at idle or under load.
Harsh or erratic shifting - Misalignment can affect shift quality and timing.
Engine or transmission movement - Noticeable rocking or shifting when revving in park or switching between drive and reverse.
Driveline misalignment - Can lead to premature wear on driveshafts, CV joints, or flex discs.
Visible mount damage - Cracked rubber, collapsed bushings, or fluid leaks (in hydraulic mounts).
Parts to Replace
URO Transmission Mount Part # 1662400518 The URO Automatic Transmission Mount part number 1662400518 is a top-quality car part designed for use in Mercedes-Benz vehicles.
P1856, P1857, and P1850 indicate shift lever or transmission solenoid circuit faults, while U0101 signals lost communication with the Transmission Control Module (TCM).
Why it happens:
Automatic transmission shift lever failure typically occurs due to worn or misaligned shift cables, faulty range sensors, broken interlock mechanisms, or electrical faults.
Symptoms:
Gear position mismatch - The gear indicator may not match the actual gear selected (e.g., shows “Drive” but stays in “Neutral”).
No gear engagement - Moving the lever doesn’t engage Drive or Reverse, often due to cable detachment or sensor failure.
Stuck shift lever - The lever may become physically stuck or hard to move, especially when shifting out of Park.
Intermittent or delayed shifting - Gear changes may lag or fail intermittently due to faulty range sensors or worn bushings.
Dashboard warning lights - Transmission or check engine lights may illuminate, often accompanied by codes like P1850-P1857 or U0101.
Limp mode activation - The vehicle may default to a single gear to protect the transmission from further damage.
Unusual noises - Clicking or grinding sounds when moving the lever can indicate internal mechanical wear or misalignment.
Windshield wiper motor failure typically occurs due to electrical faults, worn internal components, or clogged linkages, often caused by age, moisture, or lack of maintenance.
Symptoms:
Wipers move slower than usual - Even at high-speed settings, the blades crawl across the windshield.
Wipers only work at one speed - Regardless of the setting, they operate at a fixed pace.
Wipers stop mid-swipe or don’t move at all - Complete loss of motion or blades freezing mid-cycle.
Wipers don’t park correctly - They stop in the wrong position instead of returning to the base of the windshield.
Unusual noises - Humming, grinding, or clicking sounds from the motor area during operation.
Intermittent operation - Wipers work sporadically or only after tapping the switch or motor housing.
P0441 means incorrect EVAP purge flow; P0443 indicates a purge valve circuit fault - usually wiring, fuse, or solenoid failure.
Why it happens:
Vapor canister purge valve failure typically occurs due to solenoid malfunction, vacuum leaks, electrical faults, or contamination buildup, disrupting EVAP system operation.
Symptoms:
Check engine light (CEL) - Often triggered by EVAP-related fault codes like P0441, P0443, or P0455.
Rough idle - The engine may stumble or idle inconsistently due to unmetered air entering the intake.
Hard starting - Especially after refueling, caused by excess fuel vapor entering the combustion chamber.
Poor fuel economy - A stuck-open valve can lead to inefficient combustion and increased fuel consumption.
Fuel odor - Noticeable smell of gasoline near the engine bay or fuel tank area.
Failed emissions test - Due to increased hydrocarbon emissions from unburned fuel vapors.
Hesitation or bumpy acceleration - Caused by air-fuel mixture imbalance when the valve malfunctions.
Parts to Replace
Mercedes Regeneration Valve 0004708693 The Genuine Mercedes-Benz Vapor Canister Purge Valve part number 0004708693 / 000 470 86 93 is a high-quality replacement part designed specifically for Mercedes-Benz vehicles.
Mercedes EVAP Purge Valve 1644703193 The Genuine Mercedes-Benz Vapor Canister Purge Solenoid part number 1644703193 / 164 470 31 93 is the perfect replacement part for your Mercedes-Benz.
eEuroparts offers a wide selection of OEM and well-reviewed aftermarket parts chosen for compatibility with Mercedes-Benz vehicles. Parts are listed with fitment details and trusted brand options to help you find components that are appropriate for routine maintenance and common repairs.
Exceptional Delivery, Unmatched Logistics
We know that every moment counts when your car is out of commission. That’s why we focus on getting your parts to you as quickly as possible. Our efficient logistics network and fast shipping mean minimal downtime for your vehicle.
Competitive Prices, Superior Value
Our catalog includes everything from timing chains, camshaft adjusters, and PCV valves to wheel bearings, control arms, and fuel pumps, sourced to meet or exceed OE standards. Whether you prefer genuine Mercedes-Benz parts or trusted aftermarket brands, we offer top-tier quality at better-than-dealer pricing.
Trusted Excellence
Our catalog includes parts from top-tier brands like Bosch, INA, ZF, Pierburg, Elring, Lemforder, and Rein. Whether you're resolving transmission issues, electrical faults, or suspension wear, our parts meet or exceed OEM standards for fit, durability, and performance.
Conclusion
Whether you’re replacing worn items or addressing a specific fault, use these listings to identify likely parts and plan repairs. For vehicle-specific advice, consult a trusted technician to confirm fitment and service steps before installation.
Frequently Asked Questions
Is the 2007–2012 Mercedes-Benz GL450 reliable for long-term ownership?⌄
The GL450 can be reliable when maintained on schedule, but older models are known to develop common issues like air suspension leaks, worn control arms, and electrical faults. Staying ahead on maintenance helps a lot.
What common problems do owners experience with the GL450 X164?⌄
Typical issues include Airmatic suspension failures, timing chain tensioner wear, oil leaks, faulty crankshaft sensors, and malfunctioning liftgate components. Most problems are repairable with quality replacement parts.
Is the GL450 expensive to maintain compared to other full-size SUVs? ⌄
Maintenance costs are higher than average due to premium parts and labor. Using OEM-quality components and doing preventive service reduces unexpected repairs and keeps ownership manageable.
How often should I service a GL450 from this generation?⌄
Most owners follow a maintenance interval of every 10k miles or once a year. Older models benefit from more frequent oil changes, regular suspension checks, and timely replacement of wearable components.
Is the Mercedes-Benz GL450 a good SUV for family use? ⌄
Yes, the GL450 is roomy, comfortable, and offers strong highway performance. Just make sure major items like the air suspension, brakes, and cooling system are in good shape to ensure smooth everyday use.
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★★★★★
eEuroparts My No 1 go to. "eEuroparts has good prices and hassle free service. They have lots of parts for my North American MB Sprinter but you have to know what you need as they often default to the European Sprinter models and not all the parts are the same. Having said that. I got high quality parts at a great price and they fit perfectly. Lots of quality brand names to choose from and good selection. This is now the first place I look for parts." -Daniel R
Shop now at eEuroparts.com - your trusted partner for quality automotive parts at unbeatable prices!
Apr 13, 2025Celebrating 25 Years of Excellence at eEuropartsSince its inception in 2000, eEuroparts has been dedicated to providing European car owners and enthusiasts throughout the United States with top-quality Genuine, OEM, and premium aftermarket parts. What started as a small passion project has evolved into a prominent player in the auto parts sector, renowned for its dependability, swift shipping, and unparalleled customer service. Over the years, we've successfully processed more than 20 million orders, ensuring that premium European parts are accessible no matter your location.
Aug 18, 2024Saab 9-3 Lower Control Arm Symptoms and ReplacementThe Saab 9-3 is cherished by automotive enthusiasts for its unique design and turbocharged performance, representing a high point in Swedish automotive engineering. This model has fostered a dedicated following, even after Saab's exit from the automotive market. However, like many vehicles that age, the Saab 9-3 presents maintenance challenges, particularly regarding its lower control arm—a key element of the suspension system.
Aug 12, 20242018 Mercedes-Benz Sprinter 2500 Oil Cooler Leaks ExplainedIf you're the proud owner of a 2018 Mercedes-Benz Sprinter 2500, you value its reliability for a variety of uses, from deliveries to road trips. However, like all vehicles, it's not without its issues, with oil cooler leaks being a common concern among owners. While the term oil cooler may sound technical, this guide will simplify the topic and provide you with essential insights.
Aug 6, 20242013 Mercedes-Benz G550 Secondary Air Pump IssuesThe 2013 Mercedes-Benz G550 is a luxurious SUV recognized for its impressive performance and off-road capabilities. A crucial component that ensures its smooth operation and compliance with strict emissions standards is the secondary air pump. This essential part of the emissions system reduces harmful exhaust emissions during the initial startup phase, particularly when the engine is cold.
