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 Q3 (8U)
2011–2018
6
engines covered
32
known faults
91,912
roadworthiness tests in the statistics
3
official recalls
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The Audi Q3 (8U) was built from 2011 to 2018.
For this generation we cover 6 engines and 32 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 50–100 thousand km this model most often failed on: tyres and wheels (4.9 %), suspension (4.8 %), lights, wipers and visibility (3.8 %). It fails less often than average on: brakes, lights, wipers and visibility, exhaust, emissions and leaks.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 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 |
| 1.0 / 1.2 / 1.4 / 1.5 TSI (EA211) | Petrol | Belt · 210,000 km / every 120 mo | 5W-30 / 0W-20 · VW 504.00 / 508.00 · ~4.0 L · every 15,000 km |
| 1.8 / 2.0 TSI / TFSI (EA888) | Petrol | Chain | 5W-30 / 5W-40 · VW 504.00 / 502.00 · ~4.6–5.7 L · every 15,000 km |
| 2.5 TFSI 5-cyl (Audi RS 3, TT RS, RS Q3) | Petrol | Chain | 5W-30 · VW 504 00 · 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 |
| 1.4 / 1.6 / 2.0 TDI (EA288) | Diesel | Belt · 210,000 km / every 120 mo | 0W-30 / 5W-30 · VW 507.00 · ~4.3–4.6 L · every 15,000 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
1.2 / 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
1.0 / 1.2 / 1.4 / 1.5 TSI (EA211)
Thermostat / water pump housing leak
usually 60,000–140,000 km · Medium risk
Signs: Coolant level dropping, sweet smell
Fix: Replace plastic housing assembly
€250–500
Turbo wastegate actuator rattle
usually 80,000–160,000 km · Wear part
Signs: Rattle on light throttle, underboost code
Fix: Adjust or replace actuator
€200–600
1.5 TSI cold-start hesitation
usually 10,000–80,000 km · Wear part
Signs: Jerks when cold (2017–2019 builds)
Fix: Dealer software update
€0–150
1.8 / 2.0 TSI / TFSI (EA888)
Water pump / thermostat housing leak
usually 70,000–140,000 km · Medium risk
Signs: Coolant loss, overheating warning
Fix: Replace the pump + thermostat module
€400–800
PCV valve failure
usually 60,000–120,000 km · Wear part
Signs: Whistle at idle, lean codes, oil leaks
Fix: Replace PCV / oil separator
€100–250
Carbon build-up on intake valves
usually 100,000–180,000 km · Medium risk
Signs: Rough idle, misfires (direct injection)
Fix: Walnut blasting
€300–600
Timing chain tensioner (pre-2013)
usually 80,000–160,000 km · High risk
Signs: Rattle on start; early engines only
Fix: Upgraded tensioner and chain
€1,000–2,000
Excessive oil consumption (Gen 2, 2008–2012)
usually 60,000–180,000 km · High risk
model years 2008–2012 only
Signs: Needs 0.5–1 L per 1,000 km, blue smoke, sooty plugs
Fix: Oil consumption test; updated pistons and rings
€2,500–5,000
2.5 TFSI 5-cyl (Audi RS 3, TT RS, RS Q3)
Ignition coils / spark plugs
usually 80,000–150,000 km · Wear part
Signs: Misfire, flashing engine light
Fix: Replace coil and plugs
€100–300
Water pump
usually 100,000–160,000 km · Medium risk
Signs: Coolant loss
Fix: Replace pump
€250–500
Catalytic converter
usually 180,000–260,000 km · Medium risk
Signs: Rattle, efficiency code
Fix: Replace
€500–1,500
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
DPF clogging
usually 90,000–180,000 km · Medium risk
Signs: DPF warning, frequent regenerations; worse on short trips
Fix: Forced regeneration, cleaning or replacement
€150–1,500
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
1.4 / 1.6 / 2.0 TDI (EA288)
EGR cooler leak or clogging
usually 120,000–200,000 km · Medium risk
Signs: Coolant loss without visible leak, EGR codes
Fix: Replace EGR cooler
€600–1,200
DPF clogging
usually 120,000–200,000 km · Medium risk
Signs: DPF light, regeneration every few days
Fix: Longer motorway drives, cleaning or replacement
€150–1,500
Water pump leak
usually 140,000–200,000 km · Wear part
Signs: Coolant smell, pink crust near the pump
Fix: Replace, ideally with the timing belt
€250–450
Gearboxes
Manual
Clutch wear
usually 120,000–200,000 km · Medium risk
Signs: Slipping, high bite point
Fix: Replace clutch kit
€500–900
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
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
Scheduled service
Intervals and typical prices for the 1.2 / 1.4 TSI / TFSI (EA111) 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 10,000 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 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| 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: 91,912 tests.
| thousand km | 0–50 | 50–100 | 100–150 | 150–200 | 200–250 | 250+ |
|---|---|---|---|---|---|---|
| Brakes | 1.0 % | 2.3 % | 3.5 % | 4.4 % | 4.8 % | 5.3 % |
| Suspension | 2.3 % | 4.8 % | 8.6 % | 12.4 % | 14.7 % | 16.9 % |
| Steering | 0.1 % | 0.2 % | 0.2 % | 0.3 % | 0.5 % | 0.4 % |
| Tyres and wheels | 3.4 % | 4.9 % | 7.0 % | 8.8 % | 8.5 % | 11.0 % |
| Lights, wipers and visibility | 2.5 % | 3.8 % | 6.1 % | 9.1 % | 10.6 % | 14.6 % |
| Body and corrosion | 0.0 % | 0.4 % | 1.0 % | 1.6 % | 1.8 % | 3.0 % |
| Exhaust, emissions and leaks | 1.2 % | 1.1 % | 1.8 % | 3.2 % | 4.2 % | 6.3 % |
Official recalls
Recalls the manufacturer published in the United Kingdom for this model (3). 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.
- Other Failure of the front LED turn signal07/08/2019 · R/2019/260
- Airbag Passenger airbag may not deploy as intended12/02/2018 · R/2018/044
- Brakes / ABS / ESP Brake lights may fail when the electronic parking brake is operated07/07/2017 · R/2017/218
Other generations
Audi Q2 2016–Audi Q3 (F3) 2018–Audi Q5 (8R) 2008–2017Audi Q5 (FY) 2017–Audi Q7 (4L) 2006–2015Audi Q7 (4M) 2015–Audi Q4 e-tron 2021–Audi Q6 e-tron 2024–
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