In this Vehicle Platform Guide, you will find the most common issues reported in the Mercedes-Benz GLE 350 (W166, 2016–2018) 3.5L V6 RWD Base / AWD 4MATIC 7G-TRONIC PLUS, along with their related fault codes and reliable solutions from eEuroparts.com.
The 2016–2018 Mercedes-Benz GLE 350 (W166) is a premium midsize luxury SUV that blends power, comfort, and technology. Equipped with a 3.5L V6 engine producing 302 horsepower and a 7-speed automatic transmission, it delivers a smooth, responsive drive whether in RWD or 4MATIC form. Inside, it offers refined craftsmanship, advanced infotainment, and ample space for passengers and cargo. Known for its balance of performance and everyday practicality, the GLE 350 remains a strong choice for drivers seeking reliability, safety, and the timeless appeal of Mercedes-Benz engineering.
Top Common Issues with Mercedes-Benz GLE 350 (W166, 2016-2018) 3.5L V6 RWD Base / AWD 4MATIC 7G-TRONIC PLUS
Disc Brake Pad Set
1. Brake Pad Wear Sensor Activation
Fault Codes:
C1100 indicates an ABS pump motor circuit failure, often linked to wiring or module issues, while C1140 refers to a malfunction in the ABS actuator relay, typically caused by poor electrical connections or a faulty actuator.
Why it happens:
Brake pad wear sensor activation occurs when the brake pads reach a predetermined thickness, triggering the sensor to alert the driver to replace the pads and maintain braking efficiency.
Symptoms:
Dashboard warning light: A brake pad wear indicator illuminates, signaling the need for pad replacement.
Squealing or grinding noises: Audible alerts from worn brake pads or the sensor itself.
Reduced braking performance: Longer stopping distances or less responsive brakes.
Uneven brake pad wear: Visible signs of wear on the pads when inspected.
Parts to Replace
Front PART # 4132058 KIT is a high-quality component designed for optimal braking performance and safety. It includes a wear sensor to monitor pad condition and ensure timely replacement.
Rear PART # 4156420 KIT is designed for optimal braking performance and safety. It includes a wear sensor to monitor pad condition and ensure timely replacement.
C1401 indicates a malfunction in the brake booster pressure sensor circuit, C249F points to a fault in the brake booster vacuum supply due to an internal check valve or sensor issue, and P1479 highlights a mechanical failure in the brake booster vacuum system.
Why it happens:
Power brake booster issues arise due to vacuum leaks, worn seals, damaged diaphragms, faulty sensors, or improper maintenance, leading to reduced braking efficiency.
Symptoms:
Stiff brake pedal: Requires more effort to press down.
Increased stopping distance: Takes longer to bring the vehicle to a halt.
Hissing noise: Air escaping from a vacuum leak.
Engine stalling: Occurs when brakes are applied.
Warning lights: Brake system alerts on the dashboard.
Parts to Replace
OEM Mercedes Power Brake Booster 1664301030 The Genuine Mercedes-Benz Power Brake Booster part number 1664301030 / 166 430 10 30 is an essential component for your Mercedes-Benz vehicle’s braking system.
C0035 indicates a fault with the left front wheel speed sensor, C0040 points to an issue with the right front wheel speed sensor, and C0045 highlights a problem with the left rear wheel speed sensor.
Why it happens:
ABS wheel speed sensor failure occurs due to physical damage, corrosion, electrical issues, or debris interfering with sensor operation.
Symptoms:
ABS warning light: Illuminates on the dashboard, signaling a sensor issue.
Pulsating brake pedal: Feels uneven or vibrates during braking.
Loss of anti-lock braking: ABS system becomes inoperable.
Reduced traction control: Stability and traction systems may be disabled.
Parts to Replace
Front 1669054002 The Mercedes ABS Wheel Speed Sensor – Front is an essential component for monitoring wheel speed and ensuring proper ABS functionality, enhancing vehicle safety and stability.
Rear 1669054102 is a crucial component for monitoring wheel speed and ensuring proper ABS functionality, enhancing vehicle safety and stability.
Front PART # 360470 The ATE ABS Wheel Speed Sensor is a reliable and durable replacement part designed for Mercedes-Benz vehicles.
C1530 indicates a motor FET driver fault in the electric power steering system, while C1500 points to a general malfunction in the power steering control module.
Why it happens:
Rear parking brake actuator seizing occurs due to rust, corrosion, mechanical wear, or debris buildup, which can hinder its proper operation.
Symptoms:
Difficulty engaging or releasing the parking brake: The brake may feel stuck or unresponsive.
Reduced braking efficiency: The parking brake may fail to hold the vehicle securely.
Grinding or squealing noises: Unusual sounds when attempting to engage or disengage the brake.
Uneven brake wear: Visible signs of wear on the rear brake components.
Warning lights: Brake system alerts on the dashboard.
Parts to Replace
Hella Pagid 355122541 - Disc Brake Rotor (Front) The Genuine Mercedes-Benz Parking Brake Brake Rotor is a high-quality OEM component designed to ensure reliable brake functionality and vehicle safety.
Front lower control arm bushing wear occurs due to constant stress and movement, leading to deterioration from friction, aging, and exposure to road debris or harsh environmental conditions.
Symptoms:
Vibrating steering wheel: Increased vibrations, especially during acceleration.
Clunking or banging sounds: Noises from underneath the car, particularly on rough terrain or during hard braking.
Steering wander: The steering wheel pulls to one side due to misalignment.
Uneven tire wear: Tires wearing unevenly due to improper alignment.
Reduced braking performance: Though not directly connected to the brakes, worn bushings can affect braking stability.
2. Air Suspension Compressor Failure (if equipped with AIRMATIC)
Fault Codes:
C1562 indicates an issue with the ride height air pump control, often linked to air suspension problems, while C1511 typically relates to a malfunction in the steering angle sensor or electronic stability control system.
Why it happens:
Air suspension compressor failure occurs due to overheating, worn components, electrical issues, or damage caused by moisture, debris, or lack of regular maintenance.
Symptoms:
Sagging suspension: The vehicle sits lower than usual, especially after being parked for a while.
Unusual noises: Grinding, clicking, or groaning sounds when the compressor operates.
Prolonged compressor operation: The compressor runs longer than normal or continuously, indicating it’s struggling to maintain pressure.
Slow suspension response: The vehicle takes longer to adjust to the correct ride height.
Warning lights: Suspension or air system warning indicators on the dashboard.
Parts to Replace
Bilstein 10-255650 - Air Suspension Compressor The Bilstein Air Suspension Compressor is specifically engineered for your Mercedes-Benz, ensuring a seamless fit and reliable performance
C1525 indicates incomplete brake system initialization, often linked to ABS module or wiring issues, while C1560 points to a vehicle speed data malfunction, typically involving CAN bus communication errors.
Why it happens:
Rear suspension air spring leakage happens due to punctures, cracks, or aging of the rubber material, as well as poor sealing caused by dirt, moisture, or wear on connecting components.
Symptoms:
Sagging rear suspension: The rear of the vehicle sits lower than usual, especially after being parked for a while.
Uneven ride height: One side of the rear suspension may appear lower than the other.
Hissing sound: A noticeable hissing noise indicates air escaping from the suspension system.
Rough or bumpy ride: Reduced cushioning leads to a less comfortable driving experience.
Frequent compressor operation: The air compressor runs more often or continuously to compensate for the leak.
Warning lights: Suspension or air system warnings may appear on the dashboard.
Stabilizer bar link failure occurs due to wear and tear from constant movement, exposure to road debris, corrosion, or lack of lubrication, leading to weakened or broken links.
Symptoms:
Excessive body roll: The vehicle leans more during turns, reducing stability.
Clunking or rattling noises: Unusual sounds from the suspension area, especially over bumps.
Poor handling: Loose or unstable steering, particularly noticeable during cornering.
Uneven tire wear: Accelerated wear due to improper weight distribution.
Vibrations: Felt in the steering wheel or cabin, often accompanying noise.
Parts to Replace
Front Passenger Side 1663200889 is a critical suspension component that connects the sway bar to the suspension system, reducing body roll and improving stability during cornering.
Front Driver Side 1663200789 is a vital suspension component that connects the sway bar to the suspension system, enhancing stability and reducing body roll during cornering.
Fault codes P0335 and P0336 indicate issues with the Crankshaft Position Sensor Circuit, including malfunction and range/performance problems.
Why it happens:
Crankshaft Position Sensor Failure typically occurs due to wear and tear, electrical issues, or contamination from debris or oil affecting its functionality.
Symptoms:
Difficulty starting the engine or intermittent starting issues.
Engine stalling unexpectedly while driving.
Reduced engine performance, such as sluggish acceleration.
Check Engine Light illuminated on the dashboard.
Irregular engine vibrations or misfires during operation.
Parts to Replace
OEM Mercedes Crankshaft Position Sensor 2769051200 The Genuine Mercedes-Benz Engine Crankshaft Position Sensor part number 2769051200 / 276 905 12 00 is a top-quality replacement part for your Mercedes-Benz vehicle.
Mercedes Engine Crankshaft Position Sensor 2769051500 The Genuine Mercedes-Benz Engine Crankshaft Position Sensor is an essential component for your Mercedes-Benz that ensures the smooth running of your vehicle’s engine.
Fault codes P0340, P0344, and P0016 indicate issues with the Camshaft Position Sensor Circuit, including intermittent signal problems and improper correlation between camshaft and crankshaft positions.
Why it happens:
Camshaft Position Sensor Malfunction typically occurs due to electrical issues, wear and tear, or contamination from oil or debris affecting its signal accuracy.
Symptoms:
Difficulty starting the engine or intermittent starting issues.
Engine misfires or stalling during operation.
Reduced engine performance, such as sluggish acceleration.
While rack and pinion bellow failure may not always trigger a direct fault code, related diagnostic trouble codes can appear—such as C10AC (Steering Angle Sensor Malfunction) or C1142 (Steering Rack Pressure Sensor Fault)—indicating issues with steering performance or fluid pressure inconsistencies due to contamination or leakage.
Why it happens:
The rack and pinion bellow (also called the steering rack boot) serves as a protective barrier for the steering rack’s internal components. Over time, exposure to road debris, heat, and ozone causes the rubber bellows to crack or tear. When this seal fails, dirt, water, and grit infiltrate the steering rack, accelerating wear of the inner tie rods and rack seals, ultimately leading to steering stiffness or fluid leaks.
Symptoms:
Grease or fluid leakage – Noticeable fluid or grease near the inner tie rod ends or on the undercarriage.
Clunking or knocking noises – Especially while turning, due to debris entering the steering rack.
Loose or uneven steering feel – Increased play or wandering sensation while driving.
Steering stiffness – Harder effort required to steer, particularly in cold conditions.
Premature inner tie rod wear – Uneven steering response due to contamination inside the bellows.
P2017 for Intake Manifold Position Sensor Circuit High, P2004 for Intake Manifold Runner Stuck Open, and P2006 for Intake Manifold Runner Stuck Closed.
Why it happens:
Intake Manifold Failure typically occurs due to cracks, leaks, or blockages affecting airflow, wear and tear over time, or improper maintenance leading to reduced engine efficiency.
Symptoms:
Engine misfires due to disrupted air-fuel mixture.
Reduced engine performance, such as sluggish acceleration.
Rough idle or inconsistent engine RPMs.
Unusual noises like hissing or whistling from the engine.
Increased fuel consumption and decreased efficiency.
Engine overheating caused by improper airflow.
Parts to Replace
Mercedes Intake Manifold 2761401244 The Genuine Mercedes-Benz Engine Intake Manifold is a perfect replacement for your worn out or damaged intake manifold.
Mercedes Intake Manifold 2761401344 Crafted with precision and engineered to perfection, the Genuine Mercedes-Benz Engine Intake Manifold is a high-quality replacement part for your Mercedes-Benz.
P0010, P0011, and P0012, which relate to issues with the camshaft position actuator and timing performance in the engine's Variable Valve Timing system.
Why it happens:
Camshaft Adjuster Solenoid Failure typically occurs due to contaminated engine oil, wear and tear, or electrical issues disrupting the Variable Valve Timing system's functionality.
Symptoms:
Illuminated check engine light due to timing issues.
Rough idling or stalling caused by improper valve timing.
Reduced fuel efficiency and increased exhaust emissions.
Loss of engine power or sluggish acceleration.
Unusual noises from the engine, such as ticking or knocking.
P0299 – Turbocharger/Supercharger Underboost Condition This code appears when the engine control module (ECM) detects that the turbocharger isn’t producing enough boost pressure. It often signals an issue with the wastegate actuator or its linkage, preventing proper boost regulation.
Why it happens:
The wastegate actuator controls the flow of exhaust gases to the turbocharger turbine, ensuring consistent boost pressure. Over time, the actuator’s internal diaphragm or rod linkage can wear out, seize, or lose calibration. This leads to poor wastegate control—either staying open (causing underboost) or closed (risking overboost). Corrosion, carbon buildup, or excessive heat exposure from the exhaust manifold can accelerate this wear, resulting in erratic turbo operation.
Symptoms:
Metallic rattling noise – A noticeable rattle or clicking sound, especially during idle or low RPMs, from the turbocharger area.
Loss of power or slow acceleration – The vehicle may feel sluggish or hesitant to respond, particularly under load or during overtaking.
Boost pressure fluctuations – Uneven power delivery or surging during acceleration.
Check Engine Light (CEL) – The ECM logs turbocharger performance codes such as P0299.
Reduced fuel efficiency – When boost control is compromised, the engine compensates by burning more fuel to maintain performance.
Whistling or hissing noise – Air leaks near the turbocharger or actuator linkage can create high-pitched sounds under acceleration.
Parts to Replace
Genuine Mercedes-Benz 2761410125 - Turbocharger Wastegate Actuator Designed for precise boost control, this genuine Mercedes actuator restores correct turbo pressure regulation and eliminates rattle.
P0620, P0621, P0562, and P0563 indicate issues with the alternator control circuit, generator lamp circuit, and system voltage fluctuations, ranging from low to high.
Why it happens:
Alternator Malfunction typically occurs due to wear and tear, faulty wiring, damaged components, or contamination from oil or debris affecting its performance.
Symptoms:
Dim or flickering headlights and interior lights.
Difficulty starting the engine or frequent stalling.
Battery warning light illuminated on the dashboard.
Unusual noises like grinding or whining from the engine area.
Electrical malfunctions, such as erratic behavior of power windows or dashboard gauges.
A burning smell, often caused by overheating or friction.
Parts to Replace
The OEM Alternator part number CAL15422GS for Mercedes-Benz is a high-quality replacement part that is designed to keep your vehicle’s charging system in excellent working condition.
P0615, P0625, and P0700 point to issues with the starter relay circuit, starter motor circuit, and potential problems in the transmission control system, which might be linked to the starter or electrical systems.
Why it happens:
Starter Motor Malfunction typically occurs due to worn-out components, electrical issues, or contamination from oil or debris affecting its operation.
Symptoms:
Clicking sound when turning the key, indicating solenoid issues.
Grinding or whining noises during startup attempts.
Slow or sluggish engine cranking.
Intermittent starting problems or complete non-response.
Smoke or burning smell due to overheating or electrical issues.
Starter motor remains engaged after the engine starts.
Parts to Replace
Starter Motor SR0499N is a high-quality OEM component designed for reliable engine starting performance.
Starter Motor Bosch SR0499X is a remanufactured OEM component by Bosch, designed for reliable engine starting performance.
U1000, B200F, and U0235 indicate issues with the CAN communication system, an internal fault in the radar sensor, and a loss of communication with the cruise control front distance sensor, respectively.
Why it happens:
Collision Warning Sensor Failure typically occurs due to sensor misalignment, electrical faults, physical damage, or environmental factors like dirt, ice, or extreme temperatures obstructing its functionality.
Symptoms:
Frequent false alarms or warnings when no obstacles are present.
Lack of alerts or warnings in situations where a collision risk exists.
Malfunction indicator light illuminated on the dashboard.
Reduced functionality or complete failure of adaptive cruise control or automatic emergency braking systems.
Inconsistent or erratic sensor behavior, such as delayed responses.
Rear w/amg 000905740564 The Genuine Mercedes-Benz Blind Spot Detection System Warning Sensor with is an OEM component designed for precise functionality in blind spot detection systems.
B10B7, B10B8, and B10BD signify issues with the blower motor, including general malfunction, regulation errors, and electrical problems like open circuit or short to ground.
Why it happens:
Blower Motor Failure typically occurs due to overheating, electrical issues, airflow restrictions, or wear and tear on internal components.
Symptoms:
Weak or no airflow from the vents, even at the highest fan setting.
Strange noises like grinding, squealing, or vibrations coming from the blower motor.
Burning smell or overheating, often caused by electrical issues or friction.
Intermittent operation, where the blower motor works sporadically or only at certain speeds.
Circuit breaker tripping or blown fuses due to excessive current draw.
Parts to Replace
OEM Blower Motor PART # 1669066100 The Genuine Mercedes-Benz HVAC Blower Motor Assembly is a must-have replacement for your car’s HVAC system.
The Continental HVAC Blower Motor PM5175 is a high-quality replacement part for your Mercedes-Benz that will keep your vehicle’s climate control system operating smoothly.
P0750, P0755, P2716, and P0720 indicate issues with shift solenoids A and B, performance problems with pressure control solenoid D, and a malfunction in the output speed sensor circuit, affecting proper transmission operation.
Why it happens:
Auto Trans Solenoid Valve issues typically occur due to electrical faults, transmission fluid contamination, or wear and tear affecting its operation.
Symptoms:
Delayed or erratic gear shifting.
Transmission stuck in a specific gear or failing to shift.
Unexpected gear skipping or downshifting.
Transmission warning light illuminated on the dashboard.
Increased engine RPM without corresponding acceleration.
Parts to Replace
Blue 2202770998 is a genuine OEM component designed for precise transmission control.
Black 2202771098 The Mercedes Auto Trans Solenoid Valve (Black) is a genuine OEM component designed for precise transmission control.
2. Transfer Case Motor Concern (AWD Control Motor)
Fault Codes:
C1140, P1866, and U0403 indicate a malfunction in the transfer case range actuator, a fault with the transfer case motor position sensor, and invalid data received from the transfer case control module, respectively.
Why it happens:
Transfer Case Motor concerns typically occur due to electrical faults, mechanical wear, insufficient lubrication, or damage caused by impact or overheating.
Symptoms:
Difficulty engaging or disengaging all-wheel drive (AWD) mode.
Grinding or unusual noises when attempting to shift between drive modes.
AWD warning light illuminated on the dashboard.
Vehicles stuck in a specific drive mode, such as 2WD or 4WD.
Fluid leaks near the transfer case area, indicating potential damage or wear.
Parts to Replace
OEM Mercedes Transfer Case Motor 1645400188 Genuine Mercedes-Benz Transfer Case Motor is an essential part for your Mercedes-Benz that ensures the smooth functioning of your vehicle’s transfer case.
Rein Mercedes Transfer Case Motor TDA0003 The Rein Transfer Case Motor part number TDA0003 is a high-quality replacement part that is compatible with part number 164 540 01 88 for Mercedes-Benz models.
Transmission Mount Deterioration typically occurs due to prolonged exposure to heat, wear and tear on the rubber or metal components, or contamination from oil or transmission fluid leaks.
Symptoms:
Excessive vibrations felt throughout the vehicle, especially during acceleration or idling.
Clunking or banging noises from the transmission area, particularly during gear shifts or while driving over uneven surfaces.
Misalignment of the transmission, leading to poor shifting performance.
Increased engine noise or movement due to reduced stability.
Potential damage to the chassis or drivetrain caused by excessive transmission movement.
Parts to Replace
OEM Mercedes Automatic Transmission Mount 1662400918 The Genuine Mercedes-Benz Automatic Transmission Mount is an essential component for Mercedes-Benz vehicles, specifically designed to provide outstanding performance and longevity.
1. Front Camera or Radar Sensor Calibration Issues
Fault Codes:
Fault codes U1001 and C110B indicate communication problems within the vehicle's CAN system and an issue with the right rear wheel speed sensor, respectively.
Why it happens:
Front Camera or Radar Sensor Calibration Issues typically arise due to sensor misalignment, software glitches, physical damage, or environmental factors like dirt, ice, or extreme temperatures obstructing the sensor's view.
Symptoms:
Malfunction indicator light illuminated on the dashboard.
Inaccurate or inconsistent readings from the camera or radar sensor.
Reduced functionality or failure of Advanced Driver Assistance Systems (ADAS), such as lane-keeping assist or adaptive cruise control.
False alarms or warnings, such as collision alerts when no obstacles are present.
Delayed or unresponsive system behavior, like late braking or steering corrections.
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
What are the most common issues with the 2016–2018 Mercedes-Benz GLE 350?⌄
The GLE 350 (W166) can experience issues such as suspension wear, oil leaks, and malfunctioning sensors over time. Regular maintenance and using genuine replacement parts help prevent major repairs.
How reliable is the Mercedes-Benz GLE 350 (2016–2018)?⌄
Overall, the GLE 350 is considered a reliable luxury SUV when properly maintained. Routine servicing, timely oil changes, and quality OEM components play a key role in keeping it dependable.
What type of engine does the 2016–2018 GLE 350 have? ⌄
This model is powered by a 3.5-liter V6 engine that produces around 302 horsepower and is paired with a 7-speed automatic transmission, offering smooth acceleration and confident highway performance.
Is the 2016–2018 Mercedes-Benz GLE 350 good for long-distance driving?⌄
Yes. The GLE 350 provides a quiet, comfortable cabin, advanced safety features, and steady power delivery, making it an excellent choice for long-distance or daily commuting comfort.
Where can I find genuine replacement parts for my Mercedes-Benz GLE 350 (W166)? ⌄
You can find high-quality OEM and aftermarket parts for your GLE 350 at eEuroparts.com, which offers verified fitment, detailed specs, and reliable options to keep your SUV running at its best.
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