Common problem guide

Find common problems by make and model.

The vehicle guide connects common problems, first checks and related diagnostic codes inside technical profiles.

1991-2023

BMW 5 Series

Highlighted problems: Cooling system plastic and hose aging, Valve cover gasket oil leaks, Intake boot and vacuum leaks

Cooling system plastic and hose agingValve cover gasket oil leaksIntake boot and vacuum leaksIgnition coil/boot misfireIdle control valve contamination

1996-2024

Audi A6

Highlighted problems: Coolant leaks from radiator and water pump, Electrical issues in instrument cluster, Timing chain tensioner wear leading to rattle

Coolant leaks from radiator and water pumpElectrical issues in instrument clusterTiming chain tensioner wear leading to rattleOil leaks from camshaft sealsCoolant leaks from water pump

1997-2023

VOLKSWAGEN Jetta

Highlighted problems: Timing belt wear requiring replacement at specified intervals, Coolant thermostat failures, Ignition coil issues on 2.0L 8v engines

Timing belt wear requiring replacement at specified intervalsCoolant thermostat failuresIgnition coil issues on 2.0L 8v enginesDiesel injector clogging in some TDI modelsTiming belt wear (diesel engines)

1997-2020

VOLKSWAGEN Golf

Highlighted problems: Cooling system leaks, Ignition coil failures, Diesel injector issues in TDI variants

Cooling system leaksIgnition coil failuresDiesel injector issues in TDI variantsTiming belt wear and replacement critical at specified intervalsTurbocharger issues on early 1.8T engines

1998-2023

Audi A4

Highlighted problems: Timing belt wear on older engines, Electrical issues on models with high mileage, Oil consumption on 1.8T engines

Timing belt wear on older enginesElectrical issues on models with high mileageOil consumption on 1.8T enginesTiming belt wearCoolant leaks from thermostat housing

1996-2023

HONDA Accord

Highlighted problems: Timing belt wear (replacement recommended every 60,000 miles), Rear suspension bushings wear, Known intake manifold cracking on some 2.3L models

Timing belt wear (replacement recommended every 60,000 miles)Rear suspension bushings wearKnown intake manifold cracking on some 2.3L modelsTiming belt wear requiring replacement every 60,000-90,000 milesVTEC solenoid issues on VTEC variants

1996-2022

HONDA Civic

Highlighted problems: Timing belt maintenance critical at 60,000 miles, Minor rust issues in wet climates, Valve cover gasket oil leaks

Timing belt maintenance critical at 60,000 milesMinor rust issues in wet climatesValve cover gasket oil leaksTiming belt wear - replacement critical at recommended intervalsSuspension bushings deterioration

1996-2022

MERCEDES-BENZ E-Class

Highlighted problems: Front suspension wear (wishbone bushings, ball joints), Rear axle air suspension leaks (if equipped), Rust in door sills and wheel arches (Europe)

Front suspension wear (wishbone bushings, ball joints)Rear axle air suspension leaks (if equipped)Rust in door sills and wheel arches (Europe)Electronic control module sporadic faultsEarly W210 rust issues on rear wheel arches

1996-2021

VOLKSWAGEN Passat

Highlighted problems: Timing belt wear and tensioner issues, Coolant leaks, EGR valve clogging on older TDI engines

Timing belt wear and tensioner issuesCoolant leaksEGR valve clogging on older TDI enginesTiming belt wear; replacement critical at recommended intervalsOil leaks from camshaft seals

1996-2024

MERCEDES-BENZ C-Class

Highlighted problems: Rust in wheel arches and underbody, Suspension wear around front control arm bushings, Electronic window regulator failures

Rust in wheel arches and underbodySuspension wear around front control arm bushingsElectronic window regulator failuresRear axle differential fluid leaks (diesel engines)Window regulator failures

1998-2026

MERCEDES-BENZ S-Class

Highlighted problems: V12 timing chain wear, Electrical system complexity, Suspension air strut failures

V12 timing chain wearElectrical system complexitySuspension air strut failuresAir suspension failure (Airmatic)Electrical gremlins in COMAND system

1997-2024

HYUNDAI Elantra

Highlighted problems: Timing belt wear requires replacement every 60,000 km, Rust on rear trailing arm (common in humid climates), Timing belt wear with age

Timing belt wear requires replacement every 60,000 kmRust on rear trailing arm (common in humid climates)Timing belt wear with ageRust on body panels in some climatesSuspension wear

2003-2019

AUDI A8

Highlighted problems: Air suspension wear, Timing chain tensioner noise (V8), Complex all-wheel drive system issues

Air suspension wearTiming chain tensioner noise (V8)Complex all-wheel drive system issuesAir suspension issues (if equipped)Timing chain tensioner wear (3.7L V8)

1996-2024

PORSCHE 911

Highlighted problems: Rear main seal leaks, Oil leaks from valve covers and camshaft seals, Wear on IMS bearing (less common than later 996 models)

Rear main seal leaksOil leaks from valve covers and camshaft sealsWear on IMS bearing (less common than later 996 models)Intermediate shaft bearing wearCooling system issues

1996-2023

Toyota Camry

Highlighted problems: Timing belt wear requiring replacement on schedule, Suspension bushing wear, Cooling system leaks

Timing belt wear requiring replacement on scheduleSuspension bushing wearCooling system leaksTiming belt replacement recommended at 90k milesCoolant leaks from radiator or hose fittings

2001-2022

KIA Rio

Highlighted problems: Timing chain tensioner wear, Rust issues in humid climates, Aging electrical connectors

Timing chain tensioner wearRust issues in humid climatesAging electrical connectorsTiming chain tensioner noise on higher mileage unitsIgnition coil issues

2002-2023

Highlighted problems: Timing belt wear requiring replacement at recommended intervals, Turbocharger issues on T5 variants if maintenance neglected, Timing belt wear requiring replacement every 100,000 km

Timing belt wear requiring replacement at recommended intervalsTurbocharger issues on T5 variants if maintenance neglectedTiming belt wear requiring replacement every 100,000 kmIgnition coil failures on early model turbo enginesFront suspension bushings wear

1996-2022

MAZDA MX-5

Highlighted problems: Clutch wear on manual transmissions, Rust on sills and wheel arches, Timing belt wear – critical replacement intervals

Clutch wear on manual transmissionsRust on sills and wheel archesTiming belt wear – critical replacement intervalsSoft top wear and leaksRust forming in sills and wheel arches

1997-2023

SUBARU Legacy

Highlighted problems: Head gasket failures in some EJ22 engines, Timing belt wear issues, Head gasket leaks especially on EJ22 and EJ25 engines

Head gasket failures in some EJ22 enginesTiming belt wear issuesHead gasket leaks especially on EJ22 and EJ25 enginesSuspension wear in older mileage carsTiming belt replacement critical as per maintenance schedule

2008-2024

Audi A5

Highlighted problems: Timing belt tensioner wear (for applicable engines), Carbon buildup on direct injection intake valves, Water pump failures in some V6 engines

Timing belt tensioner wear (for applicable engines)Carbon buildup on direct injection intake valvesWater pump failures in some V6 enginesPCV valve failures causing rough idleTiming chain tensioner wear in 4-cylinder engines

2002-2021

FORD Mustang

Highlighted problems: Rear main seal leaks (V8), Ignition coil failures, Transmission mount wear

Rear main seal leaks (V8)Ignition coil failuresTransmission mount wearIgnition coil pack failureCooling system leaks

2006-2022

Audi A3

Highlighted problems: DSG Mechatronics failures on some automatic trims, Crankshaft position sensor issues, Carbon buildup in direct injection engines

DSG Mechatronics failures on some automatic trimsCrankshaft position sensor issuesCarbon buildup in direct injection enginesTiming chain tensioner wear (TFSI engines)DPF clogging (diesel engines)

2001-2018

FORD Focus

Highlighted problems: Coolant leaks from heater control valve, Ignition coil failures (common on 1.8L ZETEC-E), Rear suspension worn bushings

Coolant leaks from heater control valveIgnition coil failures (common on 1.8L ZETEC-E)Rear suspension worn bushingsIgnition coil failuresRear wheel bearing wear

1999-2024

HYUNDAI Sonata

Highlighted problems: Timing belt replacement interval critical, Cooling system maintenance required to avoid overheating, Timing belt requires replacement at recommended intervals to avoid engine damage

Timing belt replacement interval criticalCooling system maintenance required to avoid overheatingTiming belt requires replacement at recommended intervals to avoid engine damageV6 model may experience intake manifold gasket wearRust issues in some regions depending on climate

1998-2025

NISSAN Altima

Highlighted problems: Timing chain tensioner noise (KA24DE), Transmission shifting hesitation on automatics, Head gasket issues rare but possible on VQ engines

Timing chain tensioner noise (KA24DE)Transmission shifting hesitation on automaticsHead gasket issues rare but possible on VQ enginesTiming belt wear on VG33E V6Intake manifold cracking (VG33E) causing coolant leaks

1997-2020

Toyota Corolla

Highlighted problems: Timing belt wear if not changed on schedule, Rust in harsh climates, Suspension wear on older vehicles

Timing belt wear if not changed on scheduleRust in harsh climatesSuspension wear on older vehiclesTiming belt failure if not replaced timelyWorn suspension components in high mileage cars

2003-2021

MAZDA Mazda6

Highlighted problems: Crankshaft pulley wear on early models, Premature rear tail light cracking, Fuel injector issues in some 2.3L engines

Crankshaft pulley wear on early modelsPremature rear tail light crackingFuel injector issues in some 2.3L enginesTiming chain tensioner wear leading to rattleSuspension component wear in high-mileage examples

1996-2024

HYUNDAI Accent

Highlighted problems: Timing belt wear recommended replacement interval 60-72 months, Rust issues in some markets, Idle and tuning issues with carbureted European versions

Timing belt wear recommended replacement interval 60-72 monthsRust issues in some marketsIdle and tuning issues with carbureted European versionsTiming belt maintenance critical around 60,000 milesSome models reported ignition coil failures

2009-2024

JAGUAR XF

Highlighted problems: Timing chain tensioner noise on V8 early models, Air suspension failures, Electrical gremlins in early production

Timing chain tensioner noise on V8 early modelsAir suspension failuresElectrical gremlins in early productionTiming chain issues on early AJ-V6 petrol enginesDiesel particulate filter clogging on 2.7L diesel if used mainly for short trips

2001-2024

LEXUS IS

Highlighted problems: Timing belt replacement critical at recommended intervals, Early models had occasional ABS sensor issues, Timing belt replacement required at recommended intervals to prevent engine damage (for belt-driven engines)

Timing belt replacement critical at recommended intervalsEarly models had occasional ABS sensor issuesTiming belt replacement required at recommended intervals to prevent engine damage (for belt-driven engines)Suspension wear in higher mileage vehiclesOil seepage from valve cover gaskets

2002-2022

CHEVROLET Malibu

Highlighted problems: Intake manifold gasket leaks on 3.1L engines, Ignition coil failures causing misfires, Transmission 4T65-E shift solenoid issues

Intake manifold gasket leaks on 3.1L enginesIgnition coil failures causing misfiresTransmission 4T65-E shift solenoid issuesIntake manifold gasket leaksTransmission shifting issues in higher mileage cars

2008-2024

DODGE Challenger

Highlighted problems: Fuel pump issues on V6 models, Camshaft phaser noise on some V8s, Clutch wear on manual transmissions

Fuel pump issues on V6 modelsCamshaft phaser noise on some V8sClutch wear on manual transmissionsHigh oil consumption reported in some early 3.5L V6 enginesElectronic throttle issues in V6 versions

2005-2025

MAZDA Mazda3

Highlighted problems: Premature rusting in some climates, Throttle position sensor wear, Suspension bushing wear

Premature rusting in some climatesThrottle position sensor wearSuspension bushing wearIgnition coil failuresPremature rear brake wear

1997-2021

SUBARU Impreza

Highlighted problems: Head gasket failures common in some EJ20 engines, Rust in wheel arches and underbody, Timing belt deterioration requires regular replacement

Head gasket failures common in some EJ20 enginesRust in wheel arches and underbodyTiming belt deterioration requires regular replacementHead gasket leaks in later high-mileage enginesTiming belt replacement critical

2001-2019

CHEVROLET Impala

Highlighted problems: Intake manifold gasket leaks, Transmission shift solenoid issues, Intake manifold gasket leaks (3.4L and 3.8L V6)

Intake manifold gasket leaksTransmission shift solenoid issuesIntake manifold gasket leaks (3.4L and 3.8L V6)Transmission 4T65-E shift solenoid issuesIgnition coil failures

2001-2019

LEXUS GS

Highlighted problems: Timing belt replacement critical on 1G-FE and 2JZ-GE, VVT-i system reliability generally good, Suspension bushings wear over time

Timing belt replacement critical on 1G-FE and 2JZ-GEVVT-i system reliability generally goodSuspension bushings wear over timeAging air suspension components (on GS430 with ADS)Oil leaks around valve covers

2005-2022

MERCEDES-BENZ CLS-Class

Highlighted problems: Balance shaft gear wear on smaller V6 engines (M272), Air suspension component wear, Electrical issues with COMAND system

Balance shaft gear wear on smaller V6 engines (M272)Air suspension component wearElectrical issues with COMAND systemBalance shaft chain wear on M272 engineAir suspension leaks in some markets

2007-2020

FORD Fusion

Highlighted problems: Intake manifold gasket leaks on 3.0L V6, Ignition coil failures on 2.3L I4, Water pump issues on V6

Intake manifold gasket leaks on 3.0L V6Ignition coil failures on 2.3L I4Water pump issues on V6Intake manifold gasket leaks (3.0L V6)Ignition coil failures (2.3L I4)

2002-2018

JAGUAR XJ

Highlighted problems: Suspension air springs wear on early X350, Electrical gremlins in window regulators and door modules, Air suspension compressor failure

Suspension air springs wear on early X350Electrical gremlins in window regulators and door modulesAir suspension compressor failureDashboard instrument cluster failuresWindow regulator issues

1999-2022

LEXUS LS

Highlighted problems: Timing belt replacement critical at recommended intervals, Potential air suspension issues in some markets, Head gasket leaks uncommon but possible after high mileage

Timing belt replacement critical at recommended intervalsPotential air suspension issues in some marketsHead gasket leaks uncommon but possible after high mileageSuspension bushings wear causing mild noiseAging automatic transmission solenoids impacting shift quality

1996-2023

NISSAN Sentra

Highlighted problems: Timing belt wear requiring replacement, Clutch wear on manual variants, Rust in humid/winter climates

Timing belt wear requiring replacementClutch wear on manual variantsRust in humid/winter climatesTiming belt wear on SR20DEEngine oil leaks from valve cover gasket

1998-2010

VOLVO V70

Highlighted problems: Timing belt wear and failure risk if maintenance neglected, Mass air flow sensor faults, Turbocharger wear on T5 models

Timing belt wear and failure risk if maintenance neglectedMass air flow sensor faultsTurbocharger wear on T5 modelsElectrical issues with central locking and window regulatorsTiming belt wear (timing belt replacement critical at recommended intervals)

2010-2023

CHEVROLET Cruze

Highlighted problems: Timing chain noise (some engines), Turbocharger issues on diesel variants, Coolant leaks

Timing chain noise (some engines)Turbocharger issues on diesel variantsCoolant leaksIgnition coil failureTiming chain stretch (mostly on 1.4L turbo)

2003-2018

KIA Optima

Highlighted problems: Timing belt wear on 4-cylinder engines (replace at recommended intervals), Suspension noise from front strut mounts, Electrical issues with door lock actuators

Timing belt wear on 4-cylinder engines (replace at recommended intervals)Suspension noise from front strut mountsElectrical issues with door lock actuatorsTiming belt wear on V6 requires timely replacementPremature front suspension wear

1996-2024

MERCEDES-BENZ SL-Class

Highlighted problems: Soft top mechanism wear with age, Electrical issues in climate control, Suspension bushing deterioration

Soft top mechanism wear with ageElectrical issues in climate controlSuspension bushing deteriorationEarly R230 models may have issues with airmatic suspension componentsElectrical gremlins in COMAND system reported

2012-2024

PORSCHE Panamera

Highlighted problems: High-pressure fuel pump failures in early models, Air suspension faults, Turbocharger wastegate rattle in supercharged versions

High-pressure fuel pump failures in early modelsAir suspension faultsTurbocharger wastegate rattle in supercharged versionsEarly wear on air suspension componentsPotential electrical sensor faults (e.g. ABS, adaptive air suspension)

2004-2018

VOLVO XC90

Highlighted problems: Timing belt wear and replacement critical at 120,000 km, Electrical issues with early model sensors, Rust prone areas around rear wheel arches

Timing belt wear and replacement critical at 120,000 kmElectrical issues with early model sensorsRust prone areas around rear wheel archesTiming belt wear and tensioner issues if not replaced on scheduleTurbocharger wastegate failures on some variants

2003-2022

BMW Z4

Highlighted problems: Cooling system plastic parts prone to failure, Electronic VANOS solenoid issues, Soft top leaks (roadster)

Cooling system plastic parts prone to failureElectronic VANOS solenoid issuesSoft top leaks (roadster)Cooling system issues (water pump, thermostat)VANOS system failure

Find common problems by make and model.

BMW 5 Series

Audi A6

VOLKSWAGEN Jetta

VOLKSWAGEN Golf

Audi A4

HONDA Accord

HONDA Civic

MERCEDES-BENZ E-Class

VOLKSWAGEN Passat

MERCEDES-BENZ C-Class

MERCEDES-BENZ S-Class

HYUNDAI Elantra

AUDI A8

PORSCHE 911

Toyota Camry

KIA Rio

VOLVO S60

MAZDA MX-5

SUBARU Legacy

Audi A5

FORD Mustang

Audi A3

FORD Focus

HYUNDAI Sonata

NISSAN Altima

Toyota Corolla

MAZDA Mazda6

HYUNDAI Accent

JAGUAR XF

LEXUS IS

CHEVROLET Malibu

DODGE Challenger

MAZDA Mazda3

SUBARU Impreza

CHEVROLET Impala

LEXUS GS

MERCEDES-BENZ CLS-Class

FORD Fusion

JAGUAR XJ

LEXUS LS

NISSAN Sentra

VOLVO V70

CHEVROLET Cruze

KIA Optima

MERCEDES-BENZ SL-Class

PORSCHE Panamera

VOLVO XC90

BMW Z4

Scanning Engine...

Find common problems by make and model.

BMW 5 Series

Audi A6

VOLKSWAGEN Jetta

VOLKSWAGEN Golf

Audi A4

HONDA Accord

HONDA Civic

MERCEDES-BENZ E-Class

VOLKSWAGEN Passat

MERCEDES-BENZ C-Class

MERCEDES-BENZ S-Class

HYUNDAI Elantra

AUDI A8

PORSCHE 911

Toyota Camry

KIA Rio

VOLVO S60

MAZDA MX-5

SUBARU Legacy

Audi A5

FORD Mustang

Audi A3

FORD Focus

HYUNDAI Sonata

NISSAN Altima

Toyota Corolla

MAZDA Mazda6

HYUNDAI Accent

JAGUAR XF