2012 Audi A1 problems

• 1.2 TSI 86/90/105 hp (EA111, CBZA/CBZC/CBZB, 2009-2015)

  86–105 hp · CBZA, CBZC, CBZB

  The chains and tensioners on the earliest units stretch early. It is a viable buy if there is an invoice for the revised timing kit, or if it starts from cold without rattling and the maintenance is up to date.^[3][4]

  With caution

• 1.4 TSI twincharger 140-185 hp (EA111, BMY/BLG/CAVD/CAVE…, 2006-2012)

  140–185 hp · BMY, BLG, CAVB, CAVC, CAVD, CAVE, CAVF, CAVG

  It adds the chain risk to that of piston breakage, which cannot be fully ruled out without stripping the engine. It only makes sense with a complete history and a repair already carried out with revised parts.^[4][5][6]

  Avoid

• 1.4 TSI twincharger revised 160-185 hp (EA111, CTHD/CTHE/CTHG, from 2012)

  160–185 hp · CTHD, CTHE, CTHG

  It fixes the previous version's piston weak point, but retains the EA111 chain-driven timing and the complexity of the supercharger: check for cold-start noise and oil consumption.^[4][5]

  With caution

• 1.4 TSI 122/125 hp (EA111, CAXA/CAXC, from 2007)

  122–125 hp · CAXA, CAXC

  It is simpler than the twincharger, but shares the EA111's chain-driven timing: listen to the cold start and check the history before buying.^[4][7]

  With caution

• 1.4 TSI 122-150 hp (EA211, incl. ACT/COD; CMBA, CXSA, CZCA, CHPA, CPTA, CZDA, CZEA…, from 2012)

  122–150 hp · CMBA, CXSA, CZCA, CPVA, CHPA, CPTA, CZDA, CZEA

  Without the EA111's problematic chain and pistons. Its most repeated fault is a leaking water pump, which is repaired without consequences if caught in time.^[8][9]

  Buy

Faults that affect 2012 cars

• Critical severityFrequency: Very frequentTimingTiming chain stretch and tensioner failure (EA111)On the 1.2 and 1.4 TSI EA111 (2006-2015) the chain can stretch and the tensioner fall short; if the chain jumps a tooth, the valves hit the pistons. Volkswagen admitted the defect in 2012 and revised the chain and tensioner between 2010 and 2011.Repair (garage): €700–€1,400Appears at around 30,000 km
• Critical severityFrequency: CommonCylinder head and blockPiston breakage and oil consumption in the 1.4 TSI twinchargerThe 1.4 TSI twincharger (turbo and supercharger) built up to 2012 can crack the pistons between the rings, with oil consumption, misfires and loss of compression. Volkswagen strengthened the pistons and rings on the 2012 CTHD engines.
• Medium severityFrequency: CommonCoolingWater pump and thermostat housing leak (EA211)On the 1.2 and 1.4 TSI EA211 the water pump is integrated into the plastic thermostat housing; over the years it can crack or lose its seal and the engine slowly loses coolant. Caught in time, it does not damage the engine.Appears at around 80,000 km
• Medium severityFrequency: OccasionalTurboTurbo wastegate actuator failureThe electric actuator that regulates turbo pressure (wastegate) can seize or fail on the 1.2 TSI and the EA211 engines: the car lights up the EPC warning light and goes into limp mode. Sometimes the actuator alone is enough; if the valve is damaged, the turbo is replaced.

• DSG7 DQ200 0AM (2008-2013)

  · 0AM

  This is the generation with the most documented mechatronic and clutch problems, and the one that accounts for the service actions acknowledged by the manufacturer; it is only advisable if you verify the service history, if the 2013 oil campaign has already been carried out and if there are no fault codes stored in the gearbox control unit.^{[10][13][14][15]}

  With caution

Faults that affect 2012 cars

• High severityFrequency: Very frequentElectronicsMechatronic unit failure: pressure accumulator, pump and cracked housingYes: the mechatronic unit is the DQ200's most cited weak point. Its pressure accumulator and hydraulic pump can fail because of a housing design defect, with fault warnings, limp mode or loss of drive; Volkswagen has acknowledged the problem with service actions and software updates.Repair (garage): €600–€2,200
• Medium severityFrequency: CommonClutchPremature dry clutch wear and judder when drivingYes: the DQ200's dry clutch wears out sooner than a wet one, especially in stop-start urban traffic. It warns of its condition with judder or jerking when pulling away, slipping when accelerating and, in advanced cases, a burning smell; specialists put its service life at between 120,000 and 180,000 km depending on use.Repair (garage): €500–€1,100Appears at around 120,000 km
• Medium severityFrequency: CommonTransmissionReverse and 6th gear selector fork bearing failureYes, mainly on 0AM units: the bearing that guides the reverse and 6th gear selector fork can wear and leave the fork unsupported, so that the car stops engaging those gears or loses reverse, with fault warnings in the instrument cluster.

• 1.6 TDI common rail EA189 (2009-2015)

  75–105 hp · CAYA, CAYB, CAYC, CAYD, CAYE

  The dieselgate scandal affects the whole series: check that the update (software and air flow stabiliser) has been done and that there are no symptoms of EGR, particulate filter, turbo or water pump problems.^[19][20]

  With caution

• 1.6 TDI EA288 (from 2012)

  80–120 hp · DGTC, CLHB, CXXA, DDYB, CLHA, CXXB, DBKA, CRKB, DDYA, DGTE, DCXA, DCZA

  The sources we consulted on dieselgate focus on the EA189 engines; we have found no indication that the EA288 is singled out in the same way. The main thing to watch is that the timing belt and the water pump have been changed on time.^[19][21]

  Buy

Faults that affect 2012 cars

• Medium severityFrequency: Very frequentEmissions controlManipulated emissions software (dieselgate) and air flow stabiliserThe 1.6 TDI EA189 engines (2009-2015, 75-105 hp) carried software that reduced exhaust gas recirculation (EGR) outside homologation tests. Unlike the 2.0 TDI, Volkswagen corrects this engine with the software update plus the fitting of an air flow stabiliser.Repair: €0
• High severityFrequency: OccasionalTimingTiming belt and water pumpThe 1.6 TDI drives its timing with a toothed belt. It is common for the water pump to be changed together with the kit: if the pump seizes first, it can drag the belt with it, with a risk of breakage and serious cylinder head damage.Repair (garage): €400–€1,500
• High severityFrequency: OccasionalTurboVariable-geometry turbo seized or with playThe variable-geometry turbo on the 1.6 TDI EA189 can seize because of carbon deposits or wear on the shaft. The engine loses power, whistles or emits bluish smoke, and replacing the turbo costs around €1,000 if there is no additional damage.Repair (garage): €1,000
• Medium severityFrequency: CommonEmissions controlEGR valve clogged with carbon depositsThe EGR valve accumulates carbon deposits, especially on short urban trips, until it seizes and no longer seals or opens precisely. The engine loses power and jerks; cleaning the valve costs considerably less than replacing it.Repair (garage): €100–€1,000
• Medium severityFrequency: CommonEmissions controlClogged particulate filter (DPF)In urban use and on short trips, the particulate filter does not complete regeneration and becomes saturated with soot. The DPF warning light comes on and, if ignored, the car may enter limp mode with a loss of power.Repair (garage): €200–€3,000

• Medium severityFrequency: OccasionalSuspensionSuspension noises and wear: bushes, control arms, ball joints and springsfiches-auto.fr lists 11 cases of suspension noise on the A1: bushes, shock absorbers, ball joints and even a broken front spring at 89,000 km; one case needed a control arm kit at around 93,000 km.
• Medium severityFrequency: RareClimate controlFaults with the compressor, condenser and air conditioning circuitfiches-auto.fr lists 5 cases of air conditioning problems on the A1: compressor replacement at 60,000 km, a condenser failure and persistent whistling that was not fixed after several dealer visits.
• Low severityFrequency: OccasionalElectronics and infotainmentElectronic faults: instrument cluster, sensors, driver aids and MMI systemfiches-auto.fr lists 13 cases of electronic faults on the A1: a central electronics failure at 30,000 km, an MMI system lock-up and a windscreen demisting servomotor repaired for 870 euros in one testimonial.
• Low severityFrequency: OccasionalElectrical systemElectric windows that jam or do not respondThe A1 has 9 cases of window regulators or door mechanisms with problems on fiches-auto.fr: windows that stick to the seals, switches that do not respond, worn motors or damaged wiring looms.
• Low severityFrequency: OccasionalBodywork and interiorFuel filler flap that sticks shutfiches-auto.fr cites 7 cases of the A1's fuel filler flap being stuck (even on delivery at 5,000 km) or needing several presses to open, and describes it as a recurring defect on these models.