Door lock actuators
usually 80,000–200,000 km · Wear part
Signs: Doors don't lock / unlock, warning on the dash
Fix: Replace the lock unit
€100–250
Common faults, service intervals and costs
Audi A3 (8P)
2003–2012
6
engines covered
35
known faults
152,537
roadworthiness tests in the statistics
9
official recalls
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The Audi A3 (8P) was built from 2003 to 2012.
For this generation we cover 6 engines and 35 known faults, each with the mileage range where it usually appears.
The most expensive known risk is Piston damage (1.4 TSI twincharger 140–185 hp): it usually appears at 60,000–160,000 km and costs €2,000–5,000 to fix.
In UK roadworthiness tests in 2024, at 150–200 thousand km this model most often failed on: lights, wipers and visibility (16.8 %), suspension (16.3 %), brakes (10.2 %). It fails less often than average on: steering, lights, wipers and visibility.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 1.9 TDI PD / VE (EA188) | Diesel | Belt · 120,000 km / every 60 mo | 5W-40 / 5W-30 · VW 505.01 (PD) / 505.00 · ~4.3 L · every 15,000 km |
| 2.0 TDI PD (EA188, 8v / 16v) | Diesel | Belt · 120,000 km / every 60 mo | 5W-30 · VW 507.00 / 505.01 · ~4.3 L · every 15,000 km |
| 1.2 / 1.6 / 2.0 TDI CR (EA189) | Diesel | Belt · 180,000 km / every 120 mo | 5W-30 · VW 507.00 · ~4.3 L · every 15,000 km |
| 1.6 / 2.0 8v MPI (EA113) | Petrol | Belt · 90,000 km / every 60 mo | 5W-40 / 10W-40 · VW 502.00 / 501.01 · ~4.5 L · every 15,000 km |
| 1.6 FSI (EA111) | Petrol | Chain | 5W-30 / 5W-40 · VW 504.00 / 502.00 · ~3.6 L · every 10,000 km |
| 1.2 / 1.4 TSI / TFSI (EA111) | Petrol | Chain | 5W-30 / 5W-40 · VW 504.00 / 502.00 · ~3.6–3.9 L · every 10,000 km |
Faults typical of this model
Rear axle trailing-arm bushes
usually 120,000–220,000 km · Wear part
Signs: Knock over bumps, vague rear end
Fix: Replace bushes
€150–350
Water ingress (plenum / sunroof drains)
usually 60,000–250,000 km · Medium risk
Signs: Wet carpets, electrical faults
Fix: Clear drains; dry and check modules
€0–400
Radiator fan / control module
usually 100,000–220,000 km · Medium risk
Signs: Fan runs constantly or not at all
Fix: Replace fan / module
€200–450
Faults by engine
1.9 TDI PD / VE (EA188)
Big-end bearing failure (BXE / BKC / BLS)
usually 150,000–280,000 km · High risk
engine codes: BXE, BKC, BLS, BJB, BRU, BXF
Signs: Knocking from the bottom end, oil light — can destroy the engine
Fix: VW 505.01 oil every 10–15,000 km; bearing inspection
€1,500–3,500
Turbo vanes (VNT) sticking
usually 150,000–250,000 km · Medium risk
Signs: Limp mode under load, overboost / underboost codes
Fix: Clean or recondition the turbo
€300–900
Unit injector loom / O-rings (PD)
usually 150,000–250,000 km · Medium risk
Signs: Misfire, hard hot start, fuel in oil
Fix: Replace loom or injector seals
€200–700
EGR valve clogging
usually 120,000–200,000 km · Wear part
Signs: Power loss, black smoke
Fix: Clean or replace EGR
€150–400
Tandem (fuel / vacuum) pump leak
usually 150,000–250,000 km · Wear part
Signs: Diesel smell, leak at the back of the cylinder head
Fix: Reseal or replace the tandem pump
€150–400
2.0 TDI PD (EA188, 8v / 16v)
Cracked cylinder head (16v BKD / AZV)
usually 120,000–250,000 km · High risk
engine codes: BKD, AZV, BMN, BMR, BUY, BMA
Signs: Unexplained coolant loss, overheating, bubbles in the expansion tank
Fix: Pressure test; replace the cylinder head
€1,200–2,500
Camshaft and lifter wear (8v BMM / BMP / BKP)
usually 120,000–220,000 km · High risk
engine codes: BMM, BMP, BKP, BVE, BRT, BSY
Signs: Ticking, loss of power, metal in oil
Fix: Replace camshaft, rockers and lifters
€800–1,500
Oil pump hex drive shaft (balance-shaft engines)
usually 150,000–250,000 km · High risk
engine codes: BRE, BLB, BNA, BVA, BRD, BVF
Signs: Sudden oil pressure warning — mostly Audi A4 / A6 2.0 TDI
Fix: Replace the oil pump drive preventively
€700–1,500
Unit injectors
usually 150,000–250,000 km · Medium risk
Signs: Misfire, smoke, hard start
Fix: Test and replace injectors
€600–1,600
1.2 / 1.6 / 2.0 TDI CR (EA189)
EGR valve / cooler clogging
usually 100,000–200,000 km · Medium risk
Signs: Limp mode, loss of power, EGR fault codes
Fix: Clean or replace EGR valve; check cooler
€250–700
Emissions software recall
usually 0–300,000 km · Wear part
Signs: Affects 2009–2015 EA189 diesels
Fix: Confirm the emissions update was done (free at dealer)
free / recall
Timing belt tensioner and water pump
usually 150,000–210,000 km · High risk
Signs: Whine from belt area, coolant weep
Fix: Replace together with the belt kit
€450–800
Oil pump hex drive shaft (2.0 TDI with balance shafts)
usually 150,000–250,000 km · High risk
engine codes: CAGA, CAGB, CAGC, CAHA, CAHB, CGLA
Signs: Sudden loss of oil pressure — mostly Audi A4 / A5 / A6 / Q5
Fix: Replace the oil pump drive preventively
€700–1,500
High-pressure fuel pump (Bosch CP4.1)
usually 150,000–280,000 km · Medium risk
Signs: Metal debris in the fuel system — expensive if it fails; rarer with EU diesel
Fix: Quality fuel, fuel filter on time; replace pump and flush system
€1,500–4,000
Injector leak-off / wear
usually 160,000–260,000 km · Medium risk
Signs: Hard start, rough idle, smoke
Fix: Leak-off test; replace injectors
€700–1,600
1.6 / 2.0 8v MPI (EA113)
Ignition coil pack / leads
usually 100,000–200,000 km · Wear part
Signs: Misfire, flashing engine light
Fix: Replace coil pack and leads
€80–200
Intake / crankcase breather leaks
usually 120,000–220,000 km · Wear part
Signs: Lean codes, unstable idle
Fix: Replace gaskets / breather hoses
€60–200
Oil consumption at high mileage
usually 200,000–320,000 km · Wear part
Signs: Topping up between services
Fix: Valve stem seals / rings
€300–1,200
1.6 FSI (EA111)
Carbon build-up on intake valves
usually 80,000–160,000 km · Medium risk
Signs: Rough idle, misfire, poor cold start
Fix: Valve cleaning
€300–600
High-pressure fuel pump / sensors
usually 80,000–160,000 km · Medium risk
Signs: Hesitation, stalling, fuel pressure codes
Fix: Replace pump or sensor
€250–700
Timing chain stretch
usually 120,000–200,000 km · Medium risk
Signs: Rattle on cold start
Fix: Replace the chain kit
€600–1,100
Intake flap (charge motion) actuator
usually 100,000–180,000 km · Wear part
Signs: Engine light, P2015-type codes
Fix: Replace actuator / manifold
€150–500
1.2 / 1.4 TSI / TFSI (EA111)
Timing chain stretch
usually 60,000–120,000 km · High risk
Signs: Rattle for 1–3 s on cold start; skipped timing risk
Fix: Replace chain, tensioner and guides now
€700–1,500
Oil consumption (piston rings)
usually 100,000–180,000 km · High risk
Signs: Topping up over 1 L per 1,500 km
Fix: Monitor; rings or engine repair
€800–3,000
Turbo wastegate wear
usually 80,000–150,000 km · Medium risk
Signs: Loss of boost, rattle
Fix: Replace actuator or turbo
€300–1,200
Piston damage (1.4 TSI twincharger 140–185 hp)
usually 60,000–160,000 km · High risk
engine codes: BMY, BLG, BWK, CAVA, CAVB, CAVC
Signs: Misfire, low compression on one cylinder, oil use
Fix: Compression test; piston / engine repair
€2,000–5,000
Gearboxes
Manual
Clutch wear
usually 120,000–200,000 km · Medium risk
Signs: Slipping, high bite point
Fix: Replace clutch kit
€500–900
Dual-mass flywheel
usually 150,000–220,000 km · Medium risk
Signs: Rattle at idle, vibration pulling away
Fix: Replace with clutch
€700–1,400
DSG / S tronic (wet clutch: DQ250 / DQ381 / DL501)
DCT mechatronic / solenoids
usually 120,000–220,000 km · Medium risk
Signs: Harsh shifts
Fix: Repair; keep oil changes at 60,000 km
€800–2,000
DSG DQ200 (7-speed, dry clutch)
Mechatronic unit (7-speed dry DCT)
usually 60,000–150,000 km · High risk
Signs: Flashing gear indicator, no drive
Fix: Repair or replace mechatronic
€1,200–2,500
Clutch pack judder
usually 80,000–160,000 km · Medium risk
Signs: Judder pulling away
Fix: Replace clutch pack
€800–1,500
Automatic (Aisin / ZF Tiptronic)
Torque converter / valve body
usually 150,000–250,000 km · Wear part
Signs: Delayed or harsh shifts
Fix: Fluid service, repair
€300–2,500
Scheduled service
Intervals and typical prices for the 1.9 TDI PD / VE (EA188) engine. Other engines differ in oil, timing drive and some filters; the app gives the exact plan.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Fuel filterFuel | every 30,000 km or every 24 months | €40–110 |
| Glow plugsEngine | every 100,000 km | €120–300 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Timing belt kit + water pumpEngine | every 120,000 km or every 60 months | €450–900 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Manual gearbox oilTransmission | every 150,000 km | €60–130 |
| Front brake padsBrakes | usually at 30,000–60,000 km | €60–150 |
| Front brake discs + padsBrakes | usually at 60,000–120,000 km | €150–320 |
| Rear brake padsBrakes | usually at 50,000–90,000 km | €50–130 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
Roadworthiness tests by mileage
Share of tests in the United Kingdom (DVSA MOT, 2024) that this model failed because of each system. Bold red means more often and green less often than an average car of the same age and mileage. Sample: 152,537 tests.
| thousand km | 0–50 | 50–100 | 100–150 | 150–200 | 200–250 | 250+ |
|---|---|---|---|---|---|---|
| Brakes | 2.4 % | 5.6 % | 7.8 % | 10.2 % | 11.8 % | 13.3 % |
| Suspension | 6.0 % | 8.8 % | 13.1 % | 16.3 % | 18.5 % | 19.5 % |
| Steering | 0.6 % | 0.2 % | 0.3 % | 0.7 % | 1.1 % | 1.5 % |
| Tyres and wheels | 4.2 % | 5.7 % | 7.7 % | 9.2 % | 9.9 % | 10.5 % |
| Lights, wipers and visibility | 6.1 % | 9.8 % | 13.6 % | 16.8 % | 19.4 % | 21.8 % |
| Body and corrosion | 1.6 % | 2.7 % | 4.8 % | 6.5 % | 8.1 % | 8.6 % |
| Exhaust, emissions and leaks | 1.0 % | 1.9 % | 3.7 % | 5.2 % | 6.6 % | 6.9 % |
Owner complaints in the US
Which systems owners reported to the US agency NHTSA and at what mileage. Complaints are not confirmed faults and some relate to recalls. Sample: 262 complaints.
Official recalls
Recalls the manufacturer published in the United Kingdom for this model (9). The same recalls usually apply across Europe. Ask an authorised dealer to check by VIN whether your car is affected and whether the work has been done.
- Airbag Stop-drive TAKATA PSAN08/08/2025 · R/2025/387
- Airbag Replacing TAKATA driver airbag13/08/2024 · R/2024/312
- Fire risk Starter motor may malfunction and overheat07/03/2018 · R/2018/061
- Brakes / ABS / ESP ABS/ESC system may fail20/06/2017 · R/2017/190
- Fuel system Fuel may leak15/12/2011 · R/2011/170
- Engine / loss of power Clutch may operate inadvertently with unexpected loss of drive.14/12/2009 · R/2009/112
- Airbag Curtain airbag may not inflate in a collision06/09/2006 · R/2006/136
- Fire risk Flywheel may fail fire may result27/03/2006 · R/2006/031
The other recalls (1) are listed in the app.
Other generations
Audi A3 (8V) 2012–2020Audi A4 (B8) 2007–2015Audi A6 (C7) 2011–2018
Sources and notes
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles.
Updated 07/10/2026