2003 Audi A3 problems

• 2.0 TDI pumpe-düse unit injector (EA188, 2003-2010)

  136–170 hp · AZV, BKD, BLB, BRE, BKP, BMN, BMR, BMA, BMM

  Caradisiac points to numerous cases of a weak oil pump on the 140 hp 2.0 TDI, and MotorReviewer attributes to a defect in the pump shaft failures that start with the turbo. Check the oil pressure and the history.^[2][3]

  With caution

Faults that affect 2003 cars

• Critical severityFrequency: OccasionalLubricationOil pump failure on the pumpe-düse 2.0 TDIOn the pumpe-düse 2.0 TDI (2003-2010), especially the 140 hp, there are numerous cases of an oil pump that does not provide enough pressure. If lubrication fails, the first thing to break is usually the turbo.
• High severityFrequency: OccasionalTurboTurbo with seized vanes or premature failureOn the 110 and 140 hp 2.0 TDI engines, the vanes of the variable-geometry turbo get dirty and seize and the engine loses power. On some 140 hp units the turbo has failed before 70,000 km.Repair (garage): €1,000
• Medium severityFrequency: CommonEmissions controlDirty EGR valve and EGR cooler leaksThe 2.0 TDI's EGR valve often fills with carbon, especially with short journeys, and causes smoke and loss of power. On the EA189, the EGR cooler can also lose coolant.Repair (garage): €100–€300

• DSG6 DQ250 (02E, 2003-2023)

  · 02E

  It is a gearbox with a good general reputation for reliability, but it is worth checking the service history (in particular, whether the gearbox oil change has been carried out), making sure there are no fault codes stored in the mechatronic unit and taking a test drive from cold and when warm before buying.^[4][6][7]

  With caution

Faults that affect 2003 cars

• High severityFrequency: OccasionalElectronicsMechatronic unit failure: solenoid valves and temperature sensorYes, although less than on the dry-clutch DQ200: the DQ250 mechatronic unit can fail because of defective solenoid valves or an incorrect reading of the clutch temperature, with limp mode, harsh shifts or fault warnings on the dashboard. Volkswagen recalled vehicles in the US and Australia in 2009 for this reason.Repair (garage): €850–€3,100
• Medium severityFrequency: CommonClutchWet clutch pack wear: slipping and vibrationsYes: although the oil bath makes it last longer than the dry clutch of the DQ200, the DQ250's wet clutch pack also wears with use, especially on cars driven hard. It warns you with vibrations or jerks when pulling away and in traffic jams, and with slipping when accelerating hard.Repair (garage): €450–€850
• Medium severityFrequency: OccasionalTransmissionDual-mass flywheel wear on the engines paired with the DQ250It is common wear on the turbo engines paired with the DQ250 (Golf GTI/R, Cupra, RS, S3, TT), not a defect exclusive to the gearbox: the dual-mass flywheel damps engine vibrations and, over the years, its springs and bearings wear, with a metallic noise at idle and vibrations as the first warnings.Repair (garage): €700–€1,300

• 2.0 FSI (EA113, 150 hp, 2003-2009)

  150 hp · AXW, BLR, BLX, BLY, BVX, BVY

  Gebrauchtwagenberater.de singles out the 2.0 FSI, along with the naturally aspirated 1.6, as one of the most reliable petrol engines in the Audi A4 B7. Even so, two faults recur across several models and are worth checking before buying: carbon build-up on the intake valves and ignition coil failure.^{[9][10][11][12][13]}

  With caution

Faults that affect 2003 cars

• Medium severityFrequency: CommonIntakeCarbon build-up on the intake valvesBecause petrol is injected directly into the chamber, the 2.0 FSI does not wash the intake valves the way a port-injection engine does. Gebrauchtwagenberater.de documents carbon build-up in the Audi A3 8P and Passat B6, with higher consumption and less power as the mileage rises.
• Medium severityFrequency: CommonIgnitionIgnition coil failureIgnition coils are the engine fault that owners of this 2.0 FSI report most often, in models as different as the Golf V, Passat B6, Leon II and Altea. They cause an unstable idle, the engine running on fewer cylinders and, at times, difficulty starting.
• Low severityFrequency: OccasionalEmissions controlBlocked EGR valveOn the 2.0 FSI the EGR valve gets stuck or blocked fairly often, ending in a fault with the exhaust gas recirculation valve. It is a manageable repair with no risk to the engine, but it should be confirmed with diagnostics.

• 1.6 8v 102 hp (AVU, BFQ, ALZ, BGU, BSE, BSF, CCSA; 2000-2013)

  102 hp · AVU, BFQ, AYD, BFS, ALZ, BGU, BSE, BSF, CCSA, CMXA

  Gebrauchtwagenberater describes it in the Octavia II as even more reliable than the 1.4 16v, which it already presents as reliable, and does not single it out for any specific fault. On fiches-auto.fr, the Golf V with this 1.6 has only 4 owner accounts, with one oil case and one sensor case at around 120,000 km.^[12][14]

  Buy

Faults that affect 2003 cars

• High severityFrequency: OccasionalTimingTiming belt and water pumpThese engines drive the camshaft with a toothed belt and, on the EA113 evolution, that same belt also drives the water pump. A seized pump or an overdue belt can leave you stranded and, if the belt snaps, can damage the engine.Repair (garage): €400–€700
• Medium severityFrequency: OccasionalCoolingCoolant leaks: flange and water pumpCoolant leaks from the cylinder head flange and the water pump are reported on the 8-valve 1.6 and 2.0. It is not a widespread fault, but Motor16 warns that a faulty pump makes the engine overheat without warning: check the level and look for traces of fluid.
• Medium severityFrequency: OccasionalLubricationHigh oil consumptionGebrauchtwagenberater reports high oil consumption on the 2.0 of the Golf IV and relatively high consumption on the petrol León I, without specifying the engine. Fiches-auto.fr adds a case on the 102 hp 1.6. The sources do not identify the responsible part.
• High severityFrequency: RareCylinder head and blockHead gasketFiches-auto.fr cites the head gasket among the problems of the 115 hp 2.0 of the Octavia I and in 2 of 5 Golf IV owner accounts with the 102 hp 1.6. These are very small samples: if there is coolant loss or overheating, it is worth ruling the gasket out.
• Low severityFrequency: OccasionalElectronicsRough idle, mass airflow meter and lambda sensorsOn the 8-valve 1.6 and 2.0, fiches-auto.fr cites rough idle caused by a dirty throttle or sensor, and mass airflow meter and lambda sensor faults. These are sensor parts, and one owner says they failed the ITV because of emissions.
• Low severityFrequency: RareIgnitionIgnition faults: coils and spark plugsFiches-auto.fr warns of ignition problems on the 1.6s of the Octavia I, and the ADAC, according to Gebrauchtwagenberater, concentrates Golf IV faults on the distributor and coil. There are few documented cases specific to these engines.

• 09G (Aisin TF-60SN, 2003-2018)

  · 09G, 09M, 09K

  It has a reputation for being more reliable than the DSG and the press documents hardly any systemic faults, but there are isolated cases of overheating or total gearbox failure, and as with any torque converter automatic of this age it is worth checking the oil maintenance history before buying.^[11][12][16]

  With caution

Faults that affect 2003 cars

• High severityFrequency: RareTransmissionTotal gearbox failure at low mileage, documented in an isolated caseA testimony from an Audi A3 8P 2.0 FSI with a Tiptronic gearbox says it became unusable at 100,000 km, with an expensive repair. It is the only total failure documented in this entry: there is no sign that it is a widespread problem, but it is worth checking carefully that it works properly before buying.
• Medium severityFrequency: RareTransmissionGearbox overheating under demanding use, documented in an isolated caseThere is one documented testimony of a Golf V 2.0 FSI whose automatic gearbox overheated at 49,500 km. It is an isolated case - we have found no similar testimonies for this gearbox in the other cars in this entry - but it is worth bearing in mind if you do a lot of driving in heat, heavy traffic or towing.

• High severityFrequency: OccasionalGearbox and clutchDual-mass flywheel breakage and clutch wear on manual gearbox versionsOn 2003 to 2005 vehicles, Germany's KBA attributed a risk of damage to the dual-mass flywheel to an incorrectly sized pressure reducer, according to gebrauchtwagenberater.de. Apart from that specific batch, numerous owners quoted by fiches-auto.fr document dual-mass flywheel and clutch breakages over a much wider range, between 35,000 and 165,000 km.Repair (garage): €4,000Appears at around 35,000 km
• Medium severityFrequency: OccasionalBodywork and interiorCorrosion in the wheel arches, door sills and tailgate of the older vehiclesOn the older vehicles, gebrauchtwagenberater.de documents corrosion in the wheel arches, door sills and tailgate, as well as rust at the engine bay earth points that can cause faults in several control units; fiches-auto.fr confirms corrosion on the door sills from 120,000 km.Appears at around 120,000 km
• Low severityFrequency: OccasionalElectrical systemRecurring power window and door lock failuresfiches-auto.fr documents numerous cases of electric windows that stop going up or down and door locks that fail; the aggregator itself calls the lock problem a 'very well-known' fault of this car.