Volkswagen Golf IV 2.0L Inline-4 (4th Gen) Platform Guide
In this Vehicle Platform Guide, you will find the top common issues of Volkswagen Golf IV 2.0L Inline-4 (Fourth-Generation; 1999-2005), along with their fault codes, and the solutions from eEuroparts.com
The 1999–2005 Volkswagen Golf IV 2.0L Inline-4 is a versatile hatchback powered by a 2.0L naturally aspirated inline-4 engine, delivering 113 horsepower and paired with a 5-speed manual transmission. Featuring front-wheel drive, it offers practicality, reliable performance, and a comfortable driving experience.
Specifications
Engine and Powertrain
Engine:
2.0L Naturally Aspirated Inline-4
Engine Code:
AZG / AEG (varies by model year and market)
Transmission:
5-Speed Manual or 4-Speed Automatic
Fuel Type:
Gasoline
Horsepower:
115 hp at ~5,200 rpm
Torque:
122 lb-ft at 2,600 rpm
Fuel Economy (EPA Estimates)
City/Highway Combined:
~ 22–30 MPG (manual), ~20–28 MPG (automatic)
Vehicle Weight
Curb Weight:
~ 2,862 lbs
Gross Weight:
~ 3,858 lbs
Configurations and Submodels
Body Styles:
Hatchback
Seating Capacity:
5 passengers
Drivetrain Options:
Front-Wheel Drive, All-Wheel Drive
Top Common Issues with Volkswagen Golf IV 2.0L Inline-4 (Fourth-Generation; 1999-2005)
ABS Wheel Speed Sensor
1. ABS Wheel Speed Sensor Failure
Fault Codes:
The C0035–C0051 fault codes indicate wheel speed sensor range/performance issues, while U0121 signals lost communication with the ABS module, potentially triggering the ABS warning light.
Why it happens:
ABS wheel speed sensor failure occurs due to contamination, wiring damage, sensor misalignment, or wear, leading to incorrect wheel speed readings and ABS malfunctions.
Symptoms:
ABS warning light illumination – The dashboard may display an ABS warning due to sensor malfunction.
Pulsating brake pedal – The ABS system may activate incorrectly, causing a pulsating sensation while braking.
Loss of anti-lock braking function – The ABS system may become inoperative, increasing the risk of wheel lock-up.
Loss of traction or stability control – The vehicle may struggle with traction in poor weather conditions.
Speedometer issues – In rare cases, a faulty ABS sensor can cause the speedometer to stop registering.
Parts to Replace
Front Passenger Side 009106181 The Audi VW ABS Wheel Speed Sensor – Hella 009106181 is a high-quality replacement designed for accurate wheel speed detection and reliable ABS functionality.
Rear Left Sensor 009106071 The Audi Volkswagen ABS Wheel Speed Sensor 009106071 is a high-quality replacement designed for accurate wheel speed detection and reliable ABS functionality.
The P0571 fault code indicates a malfunction in the brake switch circuit, which can affect cruise control operation and brake light functionality.
Why it happens:
Brake light switch malfunction occurs due to wear, electrical faults, misalignment, or contamination, leading to brake light failure and potential safety risks.
Symptoms:
Brake lights not illuminating – The brake lights may fail to turn on when pressing the pedal.
Brake lights staying on – The lights may remain illuminated even when the pedal is released.
Cruise control issues – A faulty switch can cause cruise control to disengage unexpectedly.
Difficulty shifting gears – In automatic transmissions, the gear selector may not move out of "Park".
ABS warning light activation – The ABS system may detect a fault and trigger a dashboard warning.
Parts to Replace
Switch 191945515B The Genuine VW/Audi Brake Light Switch part number 191945515B is designed to provide optimal performance and safety for your Volkswagen vehicle.
Switch 1C0945511ANAR The Genuine VW/Audi Brake Light Switch part number 1C0945511A NAR for Volkswagen is a top-quality replacement part that ensures optimal performance of your car’s brake light system.
Switch 4015055 The OEM Brake Light Switch part number 4015055 is an essential component for your Volkswagen vehicle’s brake system.
Front control arm bushing failure occurs due to excessive wear, environmental exposure, poor installation, or low-quality materials, leading to steering instability and suspension noise.
Symptoms:
Steering instability – The vehicle may feel loose or wander while driving.
Uneven tire wear – Worn bushings can cause misalignment, leading to irregular tire wear.
Clunking or knocking noises – Loose bushings may create sounds when driving over bumps.
Vibrating steering wheel – Excessive play in the bushings can cause noticeable vibrations.
Poor braking performance – Worn bushings can affect suspension stability during braking.
Harsh ride quality – Reduced cushioning can make the ride feel rough or uncomfortable.
Parts to Replace
Front 1020302 The Audi VW Control Arm Bushing – Front 357407182 – Lemfoerder 1020302 is a high-quality replacement designed for suspension stability and smooth steering performance.
Front 2111301 The Lemforder Suspension Control Arm Bushing part number 21113 01 is a high-quality replacement part designed for Audi and Volkswagen vehicles.
Front Lower Rearward JBU129 The VW Control Arm Bushing – Front Lower Rearward 1J0407181 – TRW JBU129 is a high-quality replacement designed for suspension stability and smooth steering performance.
Rear axle beam bushings wear out due to age, excessive load, environmental exposure, poor lubrication, or manufacturing defects, leading to suspension instability and noise.
Symptoms:
Clunking or knocking noises – Loose bushings may create sounds when driving over bumps.
Uneven tire wear – Worn bushings can cause misalignment, leading to irregular tire wear.
Poor handling and stability – The vehicle may feel unstable, especially during turns.
Excessive vibrations – Worn bushings can lead to noticeable vibrations in the suspension system.
Harsh ride quality – Reduced cushioning can make the ride feel rough or uncomfortable.
Parts to Replace
Rear 2123601 The Lemforder Axle Support Bushing part number 21236 01 is an essential part for your Audi or Volkswagen vehicle. Known for its durability and reliability, it is a perfect choice for replacing your damaged axle support bushing.
Rein Axle Support Bushing Rear PART # AVB0561 The Rein Axle Support Bushing part number AVB0561 is an excellent choice for Audi and Volkswagen owners who are in need of a high-quality replacement for their worn-out or damaged bushings.
Strut mount failure occurs due to rubber deterioration, excessive vibrations, poor installation, corrosion, or worn bearings, leading to suspension instability and noise.
Symptoms:
Clunking or knocking noises – Loose or worn mounts may create sounds when driving over bumps.
Uneven tire wear – A failing strut mount can lead to misalignment, causing irregular tire wear.
Steering issues – Difficulty turning, stiffness, or excessive play in the steering wheel.
Excessive vibrations – Worn mounts fail to absorb road shocks, leading to noticeable vibrations.
Poor ride quality – Reduced suspension cushioning can make the ride feel rough or uncomfortable.
VW Suspension Strut Mount Front SM5181 The KYB Suspension Strut Mount part number SM5181 is a high-quality replacement part for Audi and Volkswagen vehicles.
P0335 means the ECM detects a crankshaft position sensor circuit fault, causing starting issues, misfires, poor acceleration, stalling, or rough idling.
Why it happens:
Crankshaft position sensor failure typically occurs due to wear and tear, electrical issues, overheating, or contamination, leading to engine misfires and starting problems.
Symptoms:
Check engine light turning on due to sensor malfunction.
Engine stalling or misfiring, causing rough idling and unpredictable shutdowns.
Difficulty starting the engine, especially in cold conditions.
Reduced fuel efficiency, as incorrect timing affects combustion.
Loss of acceleration, making the vehicle sluggish.
Excessive engine vibrations, leading to an unstable driving experience.
Parts to Replace
Hitachi Engine Crankshaft Position Sensor Hitachi CPS8158-HU The Hitachi CPS8158-HU Crankshaft Position Sensor is a replacement part designed for Volkswagen engines, ensuring accurate detection of crankshaft rotation for proper ignition timing and fuel injection.
The P0300–P0304 fault codes indicate random or specific cylinder misfires, often caused by ignition, fuel, vacuum, or sensor issues, leading to rough engine performance.
Why it happens:
Ignition coil failure occurs due to overheating, electrical faults, worn spark plugs, excessive vibrations, or insulation breakdown, leading to misfires and poor engine performance.
Symptoms:
Engine misfires – The engine may hesitate, jerk, or run rough due to incomplete combustion.
Poor fuel economy – Inefficient combustion can lead to increased fuel consumption.
Difficulty starting the engine – The engine may struggle to start or crank longer than usual.
Rough idling – The engine may idle inconsistently due to improper spark delivery.
Loss of power during acceleration – The vehicle may feel sluggish or unresponsive when accelerating.
Exhaust fumes smelling like fuel – Unburned fuel may pass through the exhaust system.
Parts to Replace
Bosch 0221603010 This Bosch direct ignition coil offers a strong and reliable spark to ensure optimal vehicle performance.
Coil IGC0133 Hitachi IGC0133 Direct Ignition Coil is an essential part for the ignition system of your Volkswagen. This part is compatible with several other part numbers, including 032905106, 032905106B, 032905106E and 032905106F.
Power steering pump failure occurs due to fluid contamination, low fluid levels, belt issues, internal wear, or overheating, leading to difficulty steering and potential system damage.
Symptoms:
Heavy or stiff steering – The steering wheel becomes difficult to turn, requiring extra effort.
Squealing or whining noises – Unusual sounds occur when turning the wheel or starting the engine.
Jerky or rough steering – The steering may feel inconsistent or unresponsive.
Knocking or groaning noises – A failing pump can produce deeper, more concerning sounds.
Leaking power steering fluid – Visible fluid leaks under the vehicle or low fluid levels in the reservoir.
Metal flakes in fluid – Contaminated fluid may indicate internal pump wear.
Parts to Replace
Pump KS00000533 The VW Power Steering Pump 6N0145157X – Bosch KS00000533 is a high-quality replacement designed for smooth steering performance and hydraulic efficiency.
Pump KS01000503 The Volkswagen Power Steering Pump Bosch 1J0422154HX is a high-quality replacement designed for smooth steering performance and hydraulic efficiency.
Rebuilt – Bosch KS01000483 The Audi Power Steering Pump (Rebuilt) – Bosch KS01000483 is a high-quality replacement designed for smooth steering performance and hydraulic efficiency.
Steering knuckle failure typically occurs due to excessive stress, impact damage, corrosion, or material defects, leading to compromised steering and suspension performance.
Symptoms:
Unusual noises like popping, grinding, or squealing when turning.
Difficulty steering, including a heavy or loose steering feel.
Vehicle pulling to one side, even when the steering wheel is centered.
Steering wheel vibration, especially at high speeds.
Uneven tire wear, often on one side.
Oil leaks or grease seepage around the knuckle.
Loose suspension components, such as ball joints or control arms.
Parts to Replace
Front Passenger Side 1J0407256AG The Genuine VW/Audi Steering Knuckle part number 1J0407256AG is a reliable choice when it comes to replacing your old or damaged steering knuckle.
Front Driver Side 1J0407255AG The Genuine VW/Audi Steering Knuckle part number 1J0407255AG is the perfect fit for any Volkswagen vehicle that requires a high-quality steering knuckle.
Rack and pinion bellow or seal leaks typically occur due to wear and tear, exposure to contaminants, excessive heat, or damaged seals, leading to fluid loss and compromised steering performance.
Symptoms:
Oily spots under the vehicle due to leaking power steering fluid.
Frequent need to top off power steering fluid, indicating a slow or severe leak.
Unusual noises when turning, such as whining or humming, caused by aeration in the power steering system.
Difficulty steering, making the wheel feel stiff or unresponsive.
Grinding sounds, which may indicate a lack of lubrication in the pinion gears.
Steering wheel not centering properly, meaning it doesn’t return to its default position after turning.
Parts to Replace
OEM VW Tie Rod Boot – Front Inner 1J0422831B The Genuine VW/Audi Rack and Pinion Bellows part number 1J0422831B is an essential component for Volkswagen vehicles that require a superior steering system.
TRW Rack and Pinion Bellows JBE178 The TRW JBE178 Rack and Pinion Bellows is a replacement part designed for various Volkswagen models, including the Jetta, Golf, and Beetle.
Rein VW Rack and Pinion Bellows BKP0018R The Rein Rack and Pinion Bellows part number BKP0018R is the perfect replacement for your Volkswagen vehicle’s worn-out bellows.
The P0117 and P0118 fault codes indicate coolant temperature sensor circuit issues, often caused by sensor failure, wiring faults, or overheating, leading to incorrect engine temperature readings and performance inefficiencies.
Why it happens:
Coolant temperature sensor failure occurs due to thermal stress, corrosion, wiring issues, electrical faults, or contaminants in the coolant, leading to incorrect temperature readings and engine inefficiencies.
Engine overheating or running too cold – Incorrect temperature data may disrupt cooling system operation.
Poor fuel economy – The ECU may adjust fuel mixture incorrectly, leading to inefficiency.
Rough idling or stalling – Inconsistent temperature readings can affect engine stability.
Difficulty starting the engine – The ECU may miscalculate fuel delivery during startup.
Cooling fans not engaging properly – The sensor may fail to signal the fans when needed.
Parts to Replace
Sensor 009107141 The Audi VW Engine Coolant Temperature Sensor 059919501A – Behr 009107141 is a genuine replacement designed to ensure accurate temperature readings and optimal engine performance.
Sensor 009107541 The Volkswagen Audi Volvo Engine Coolant Temperature Sensor Hella 009107541 is a genuine replacement designed to ensure accurate temperature readings and optimal engine performance.
Rein Coolant Temperature Sensor ELC0058 The VW Engine Coolant Temperature Sensor – Rein ELC0058 is a high-quality replacement designed to ensure accurate temperature readings and optimal engine performance.
Oxygen sensor degradation typically occurs due to carbon buildup, contamination from fuel additives, aging, or exposure to extreme temperatures, leading to inaccurate air-fuel mixture readings.
Symptoms:
Check engine light illumination, often triggered by incorrect air-fuel mixture readings
Reduced fuel efficiency, as the engine compensates for inaccurate oxygen levels.
Rough idling or engine misfires, leading to unstable performance.
Increased emissions, potentially causing a failed emissions test.
Sulfuric or rotten egg smell from the exhaust due to improper combustion.
Black smoke from the tailpipe, indicating excessive fuel consumption.
Loss of acceleration, making the vehicle feel sluggish.
Parts to Replace
NTK Oxygen Sensor 25604 The NTK Oxygen Sensor part number 25604 is designed to work with Audi and Volkswagen models.
The P0201–P0204 and P0300–P0304 fault codes indicate fuel injector circuit issues and cylinder misfires, often caused by electrical, fuel, or ignition failures, leading to rough engine performance.
Why it happens:
Fuel injector failure occurs due to clogging, electrical faults, fuel contamination, excessive heat, wear, or poor maintenance, leading to engine misfires and inefficiencies.
Symptoms:
Engine misfires – The engine may hesitate, jerk, or run rough due to improper fuel delivery.
Poor fuel economy – Inefficient fuel atomization can lead to increased fuel consumption.
Rough idling – The engine may idle inconsistently due to uneven fuel distribution.
Difficulty starting the engine – The engine may struggle to start or crank longer than usual.
Loss of power during acceleration – The vehicle may feel sluggish or unresponsive when accelerating.
Fuel odor – Leaking injectors can cause excess fuel vapors, leading to noticeable smells.
Parts to Replace
Injector 62677 The VW Fuel Injector 06A906031C – Bosch 62677 is a high-quality replacement designed for efficient fuel delivery and optimal engine performance.
The P0101–P0103 fault codes indicate mass air flow (MAF) sensor circuit issues, often caused by sensor contamination, wiring faults, or intake leaks, leading to incorrect air-fuel mixture and engine inefficiencies.
Why it happens:
Mass Air Flow (MAF) sensor failure occurs due to contamination, wiring faults, sensor degradation, or airflow disruptions, leading to incorrect air-fuel mixture calculations and engine inefficiencies.
Poor acceleration – The engine may hesitate or feel sluggish due to incorrect air-fuel mixture.
Rough idling – The engine may idle inconsistently or stall when coming to a stop.
Decreased fuel economy – Inefficient air-fuel calculations can lead to increased fuel consumption.
Black smoke from the exhaust – A rich fuel mixture can cause excessive carbon buildup.
Hard starting condition – The engine may struggle to start due to incorrect airflow readings.
Parts to Replace
Bosch VW Mass Air Flow Sensor 0280218002 The VW Mass Air Flow Sensor 0280218002 – Bosch is a high-quality replacement designed for accurate air-fuel mixture calculations and optimal engine performance.
NTK VW Mass Air Flow Sensor MG0043 The NTK Mass Air Flow Sensor part number MG0043 is a high-quality replacement part for Land Rover and Volkswagen vehicles.
The P0340 fault code signals a camshaft position sensor circuit malfunction, often caused by sensor failure, wiring issues, or timing problems, leading to engine misfires and inefficiencies.
Why it happens:
Timing belt wear or failure occurs due to age, heat exposure, oil contamination, misalignment, excessive tension, or debris, leading to engine timing issues and potential damage
Symptoms:
Engine misfires – Incorrect timing can disrupt combustion cycles.
Ticking noise from the engine – A worn belt may produce a rhythmic ticking sound.
P0230, P0089, and P0087 indicate fuel system faults, where P0230 signals a fuel pump circuit issue, P0089 points to regulator performance problems, and P0087 warns of low fuel rail pressure.
Why it happens:
Fuel pump failure typically occurs due to electrical faults, clogged fuel filters, overheating, low fuel levels, or excessive wear, leading to poor engine performance.
Symptoms:
Difficulty starting the engine, as fuel delivery becomes inconsistent.
Engine sputtering or stalling, especially at high speeds.
Loss of power during acceleration, making the vehicle feel sluggish.
Excessive whining noise from the fuel pump, indicating internal wear.
Decreased fuel efficiency, as improper fuel pressure affects combustion.
Surging or hesitation, where the engine unexpectedly speeds up or slows down.
Check engine light activation, often due to fuel pressure irregularities.
Parts to Replace
OEM VW Fuel Pump Assembly 1J0919087J The VW Fuel Pump Assembly 1J0919087J is a genuine OEM replacement designed for Volkswagen models, including the Beetle, Golf, GTI, Jetta, and Jetta Wagon.
Pierburg VW Fuel Pump 7.02550.54.0 The Pierburg Fuel Pump part number 7.02550.54.0 is an essential component for Volkswagen vehicles that need reliable fuel supply.
The P0620 fault code indicates a generator control circuit malfunction, often caused by alternator issues, wiring faults, or voltage regulator failure, leading to charging system inefficiencies and electrical problems.
Why it happens:
Alternator failure occurs due to normal wear, electrical faults, belt tension issues, overheating, fluid leaks, or battery problems, leading to charging system inefficiencies and electrical malfunctions.
Symptoms:
Battery warning light activation – A failing alternator may trigger a dashboard warning.
Dim or flickering headlights – Insufficient power can cause inconsistent lighting.
Electrical issues – Power windows, radio, or other accessories may malfunction.
Frequent dead battery – The alternator may fail to recharge the battery properly.
Difficulty starting the engine – Weak electrical output can affect ignition.
Strange noises – A failing alternator may produce grinding or whining sounds.
Burning smell – Overheating alternator components can emit a burning odor.
Engine stalling – Insufficient power supply can cause unexpected shutdowns.
Parts to Replace
Rebuilt AL0716X The VW Alternator (70A) (Rebuilt) – Bosch AL0716X is a high-quality replacement designed for efficient power generation and reliable charging system performance.
New AL0188N The VW Alternator (90A) (New) – Bosch AL0188N is a high-quality replacement designed for efficient power generation and reliable charging system performance.
The P0615 fault code signals a starter relay circuit issue, while P0685 indicates an ECM/PCM power relay control circuit malfunction, causing electrical problems.
Why it happens:
Starter failure occurs due to electrical faults, worn-out components, overheating, poor connections, or battery issues, leading to starting difficulties and engine cranking failures.
Symptoms:
Clicking noise but no engine crank – A faulty starter solenoid may produce a single click when turning the key.
Grinding noise during startup – Worn starter gears or flywheel teeth can cause a harsh grinding sound.
Slow or weak engine cranking – The starter may struggle to turn the engine over.
Intermittent starting issues – The engine may start inconsistently or require multiple attempts.
Smoke or burning smell – Overheating starter components can emit a burning odor.
Complete non-response – The starter may fail entirely, preventing the engine from turning over.
Parts to Replace
New SR0425N The Audi VW Starter Motor (New) 02A911023LX – Bosch SR0425N is a high-quality replacement designed for reliable engine starting performance.
Rebuilt SR0424X The VW Starter Motor (Rebuilt) – Bosch SR0424X is a high-quality replacement designed for reliable engine starting performance.
SR0425X The Audi VW Starter Motor – Bosch SR0425X is a high-quality replacement designed for reliable engine starting performance.
Denso VW Starter Motor 2805369 The Denso 2805369 Starter Motor is a high-quality replacement designed for reliable engine starting performance.
The P0622 fault code signals a generator field/F terminal circuit issue, while P0562 indicates low system voltage, and P0563 points to high system voltage, affecting electrical performance.
Why it happens:
Voltage regulator failure occurs due to overvoltage, undervoltage, overheating, aging components, manufacturing defects, or electrical surges, leading to unstable power output and system malfunctions.
Symptoms:
Dimming or flickering lights – Headlights and dashboard lights may behave erratically due to unstable voltage.
Dead battery – Insufficient charging can lead to repeated battery failure.
Battery warning light activation – The dashboard may display a battery warning due to voltage irregularities.
Engine performance issues – Erratic voltage can affect fuel injection and ignition timing.
Electrical component malfunctions – Radios, power windows, and other accessories may operate inconsistently.
Overheating battery – Excessive voltage can cause the battery to overheat and potentially warp.
Check Engine Light activation – Voltage fluctuations may trigger diagnostic trouble codes.
Parts to Replace
Regulator ALR0573 The Hitachi Voltage Regulator part number ALR0573 is an essential component for Audi, Mercedes-Benz and Volkswagen vehicles.
Regulator ALR0696 The Hitachi Voltage Regulator part number ALR0696 is a high-quality replacement part for Audi, BMW, Mercedes-Benz, and Volkswagen vehicles.
The B1352 fault code indicates a door lock cylinder circuit failure, while B2032 signals a driver door lock circuit issue, often caused by wiring faults or actuator malfunctions.
Why it happens:
Door lock actuator failure occurs due to wear and tear, electrical faults, moisture damage, overheating, or mechanical linkage issues, leading to locking/unlocking malfunctions.
Symptoms:
Power door lock doesn’t work – A faulty actuator may prevent the door from locking or unlocking.
Erratic locking/unlocking behavior – The door may lock or unlock unpredictably.
Strange noises during operation – Clicking, grinding, or buzzing sounds may indicate actuator issues.
Sluggish door lock operation – The lock may respond slowly or intermittently.
Door remains stuck locked or unlocked – The actuator may fail completely, preventing normal operation.
Door ajar warning light activation – A malfunctioning actuator may trigger a false warning.
Failure to respond to key fob or interior controls – The door may not react to remote or manual commands.
Parts to Replace
Driver Side 3B4839015AM The Genuine VW/Audi Door Lock Actuator Motor part number 3B4839015AM is a high-quality replacement part that is specifically designed for Volkswagen vehicles.
Front Driver Side 3B1837015AS The Genuine VW/Audi Door Latch Assembly part number 3B1837015AS is a high-quality replacement part for the Volkswagen.
Front Passenger Side 3B1837016CF The Genuine VW/Audi Door Latch Assembly part number 3B1837016CF / 3B1 837 016 CF for Volkswagen is the perfect solution for those looking for a reliable and high-quality replacement door latch assembly for their vehicle.
Headlight switch failure occurs due to blown fuses, worn-out components, faulty wiring, moisture damage, overheating, or electrical surges, leading to lighting system malfunctions.
Symptoms:
Issues switching between modes – The headlights may not toggle between low beams, high beams, or automatic settings properly.
Flickering or dim headlights – Unstable electrical connections can cause inconsistent lighting.
High beams not staying engaged – A faulty switch may prevent high beams from remaining on.
Dashboard lights malfunctioning – The switch controls interior lighting, which may fail.
Burning smell or overheating – Electrical faults can cause excessive heat buildup.
Complete headlight failure – The switch may stop working entirely, preventing any lights from turning on.
Parts to Replace
Switch 1C0941531B20H The Genuine VW/Audi Headlight Switch part number 1C0941531B 20H for Volkswagen is a top-quality replacement part that is designed to keep your car’s lighting system functioning at its best.
VW Headlight Switch 1C0941531C20H The Genuine VW/Audi Headlight Switch with part number 1C0941531C 20H for Volkswagen is a high-quality replacement part designed to fit perfectly on your vehicle.
The P0720 fault code indicates an output speed sensor circuit malfunction, while P0722 signals no output speed sensor signal, often causing transmission shifting issues and speedometer inaccuracies.
Why it happens:
Automatic transmission speed sensor failure occurs due to wear and tear, electrical faults, moisture damage, overheating, or wiring issues, leading to transmission shifting problems and speedometer inaccuracies.
Symptoms:
Erratic speedometer behavior – The speedometer may fluctuate or stop working entirely.
Harsh or delayed shifting – Transmission may shift abruptly or fail to shift properly.
Check Engine Light activation – The vehicle’s computer may detect sensor issues and trigger a warning.
Loss of cruise control – Cruise control may stop functioning due to inaccurate speed readings.
Transmission slipping – The vehicle may struggle to maintain gear engagement.
Parts to Replace
Sensor 095927321B The VW Auto Trans Speed Sensor 095927321B – OE Supplier 095927321B is a genuine replacement designed for accurate transmission speed detection.
Sensor AU0166 The NTK Automatic Transmission Speed Sensor part number AU0166 is a reliable and proficient product that is specifically designed for Volkswagen vehicles.
Sensor AU0167 The NTK Automatic Transmission Speed Sensor with part number AU0167 is a reliable replacement part for your Volkswagen vehicle that is compatible with part number 01M 927 321B.
Clutch master or slave cylinder leaks occur due to worn seals, fluid contamination, overheating, mechanical damage, or aging components, leading to hydraulic pressure loss and shifting difficulties.
Symptoms:
Soft or spongy clutch pedal – The pedal may feel unusually light or sink to the floor.
Difficulty shifting gears – Gear changes may become rough or unresponsive.
Fluid leaks near the clutch system – Visible hydraulic fluid under the vehicle or around the clutch components.
Low clutch or brake fluid levels – A leaking cylinder can cause fluid levels to drop.
Grinding or squeaking noises – Unusual sounds when pressing the clutch pedal.
Clutch engagement issues – The clutch may slip or fail to disengage properly.
Cylinder SH5162 The Audi VW Clutch Master Cylinder – Sachs SH5162 is a high-quality replacement designed for smooth clutch operation and hydraulic performance.
Cylinder SH5164 The Volkswagen Audi Clutch Master Cylinder Sachs SH5164 is a high-quality replacement designed for smooth clutch operation and hydraulic performance.
The P0741 fault code signals torque converter clutch circuit performance issues, while P0300 indicates random misfires, affecting transmission efficiency and engine power.
Why it happens:
Clutch flywheel failure occurs due to excessive heat, worn friction surfaces, improper installation, sudden impacts, or prolonged clutch slippage, leading to vibration, gear engagement issues, and power loss.
Symptoms:
Burning smell – Excessive friction can cause overheating and a burnt odor.
Difficulty shifting gears – A damaged flywheel can make gear changes rough or unresponsive.
Slipping gears – The clutch may fail to engage properly, leading to inconsistent power transfer.
Vibrating clutch pedal – Warped or damaged flywheels can cause noticeable vibrations.
Unusual noises – Grinding or rattling sounds may indicate flywheel wear.
OEM VW Flywheel 068105269F The VW Flywheel 068105269F is a genuine replacement designed for smooth clutch engagement and optimal transmission performance.
Luk VW Flywheel LFW134 The VW Flywheel – Luk LFW134 is a high-quality replacement designed for smooth clutch engagement and optimal transmission performance.
Valeo VW Clutch Kit 52155602 The VW Clutch Kit – Valeo 52155602 is a high-quality replacement designed for smooth clutch engagement and reliable transmission performance.
P0441 and P0443 indicate evaporative emission system faults, where P0441 signals incorrect purge flow and P0443 points to a purge valve circuit malfunction, affecting emissions control.
Why it happens:
EVAP purge valve failure typically occurs due to carbon buildup, electrical malfunctions, stuck solenoids, or vacuum leaks, leading to inefficient fuel vapor management and emissions issues.
Symptoms:
Check engine light activation, often due to incorrect purge flow.
Rough idling or engine hesitation, caused by improper fuel vapor management.
Difficulty starting the engine, especially after refueling.
Poor fuel efficiency, as excess vapors escape instead of being reused.
Fuel smell inside or around the vehicle, indicating vapor leaks.
Increased emissions, potentially leading to a failed emissions test.
Parts to Replace
Bosch VW EVAP Purge Valve 0280142353 The Bosch 0280142353 EVAP Purge Valve is an OEM replacement for Audi and Volkswagen models, ensuring proper fuel vapor management and emissions control.
eEuroparts.com offers access to OEM-quality replacement parts and trusted resources for maintaining the Volkswagen Golf IV 2.0L Inline-4. From ignition and cooling system components to suspension and electrical parts, customers can find parts designed to meet factory specifications. The platform helps ensure correct fitment through verified part listings, allowing Golf owners to perform maintenance and repairs with confidence.
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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 Volkswagen 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
For those addressing drivability concerns, performing scheduled maintenance, or diagnosing warning lights, eEuroparts.com features a wide selection of components suitable for the Golf IV 2.0L. Each part listing is supported by detailed information to assist in finding compatible replacements and keeping the vehicle in dependable working condition.
Frequently Asked Questions
Why is my Volkswagen Golf IV idling rough or stalling at stops? ⌄
Rough idling is often caused by a dirty throttle body, faulty idle control valve, or vacuum leaks. Inspect intake hoses and clean the throttle body for smoother idle.
What are common reasons for poor fuel economy on the Golf IV 2.0L? ⌄
Clogged air filters, aging spark plugs, or oxygen sensor failure are typical culprits. Regular tune-ups and OEM replacements help maintain fuel efficiency.
My Golf IV’s check engine light keeps coming back, what should I check first? ⌄
Frequent CEL issues may relate to the MAF sensor, EVAP purge valve, or ignition coil pack. Running a diagnostic scan can pinpoint the fault quickly.
Why does my Golf IV’s suspension feel bouncy or unstable on rough roads? ⌄
Worn struts, bushings, or ball joints are common at this age. Replacing these with OEM-quality parts improves handling and ride comfort.
The A/C on my Golf IV blows warm air, what’s the most common fix? ⌄
Low refrigerant, a failing compressor clutch, or a clogged expansion valve can cause this. Have the system checked for leaks and recharge or replace components as needed.
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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.
