Audi Q7
Supercharged V6 with 245 kW in the Q7 4M. Powerful petrol engine with linear power delivery and good throttle response.
Big SUV, tame powertrain
In the Q7 4M the CREA with 333 hp hauls almost 2.2 tonnes. The turbo V6 pushes the colossus along with authority, but driving excitement is not on the agenda. Convincing as a touring and family vehicle, out of place as a sporting tool.
Engine Weaknesses 7
The EA839 water pump system fault affects the CREA in the Q7/Q8 4M as well. Vacuum-controlled system fails internally, coolant migrates into vacuum system. 4-bolt pump = original state, 6-bolt = already replaced.
Symptoms: Coolant warning light, P0299 'boost pressure too low', coolant loss without external leakage, 'drivetrain fault'.
Early EA839 units (GP0 code) have poor-quality rocker arm rollers that can fall out. In the Q7/Q8 with its higher vehicle weight and trailer use this is particularly critical.
Symptoms: Combustion misfire, clattering from cylinder head, rough running, engine warning light.
Beyond water pump failure, the EA839 in heavy SUVs more often shows coolant leaks at hoses and seals due to higher thermal stress.
Symptoms: Coolant smell, dropping coolant level, overheating warning.
Direct-injection CREA without valve washing: crankcase oil mist carbonises on intake valves. In the Q7/Q8 with often high mileage this becomes relevant earlier.
Symptoms: Hesitation, power loss, cold-start weakness, rough idle.
CREA shows elevated oil consumption under high load and in the heavy Q7/Q8. Long oil warm-up in a heavy vehicle promotes deposits on piston rings.
Symptoms: Oil consumption above 0.5 L/1,000 km, occasional blue exhaust.
The 8-speed ZF automatic gearbox occasionally judders on pull-away and at low speeds in the Q7/Q8 with CREA. In many cases fixable with a gearbox software update.
Symptoms: Judder on pull-away or gear change, delayed gear engagement, shift jolt in urban driving.
In the extensively networked Q7/Q8, the CREA occasionally shows engine management sensor failures (lambda, boost pressure sensor) leading to fault codes without mechanical damage.
Symptoms: Engine warning light, various sensor fault codes, occasional power reduction.
Vehicle Weaknesses 5
Standard air suspension shows frequent compressor and air bag failures from 80,000–120,000 km. Leaking bags make the compressor run continuously until it burns out.
AdBlue system on 3.0 TDI models shows frequent faults from around 60,000 km: clogged injectors from urea crystallisation, faulty dosing pump. Repair costs up to 4,000 €.
Kerb weight above 2,000 kg leads to significantly elevated brake wear. Front brake discs and pads may need replacing as early as 30,000–50,000 km.
MIB2 infotainment system tends to crash and complete failure from electrical faults or moisture ingress. MOST ring network fails completely when one component drops out.
Electrically extending tow bar shows frequent control unit faults (EEPROM, Hall sensor). Without correct coding, ACC and front camera fail.
Reports & Tests
646 owner complaints filed with NHTSA (2015–2026). Most reported: Lighting (154), Electrical (129), Engine (127).