Audi Engine Reliability
enginecreep has profiled 28 Audi engines, with an average reliability score of 51/100. Each one below has its own reliability score, known issues, and buying checklist.
GOOD 2SOLID 4RISKY 22
Audi
CCWA
A5 3.0 TDI · B8 · 2007–2011
40/100RISKY
EGR Cooler Failure / Coolant LeakTiming Chain Wear (Stretch, Guides & Tensioners)
Audi
CAGA
A4 TDI · B8 · 2007–2015
46/100RISKY
Timing Belt Failure RiskDPF (Diesel Particulate Filter) Clogging
Audi
EA897
A6 TDI · C7 · 2011–2018
68/100SOLID
EGR Cooler Coolant LeakTiming Chain and Guide Wear
Audi
CDNC
A4 · B8 · 2008–2015
52/100RISKY
Excessive Oil Consumption – Piston Ring Carbon FoulingTiming Chain Stretch and Tensioner Failure
Audi
EA888
A3 · 8V · 2012–2020
50/100RISKY
Timing Chain Stretch and Tensioner FailureHigh Oil Consumption
Audi
DNTB
RS6 · C8 · 2019–2025
54/100RISKY
Coolant-Fed Charge Cooler Cracking48V Mild Hybrid BSG (Belt Starter Generator) Failure
Audi
CAGA
Q5 · 8R · 2008–2017
42/100RISKY
EGR Cooler FailureCoolant Temperature Regulation Failure
Audi
DKNA
A4 · B9 · 2016–2023
48/100RISKY
Timing Chain Failure / Tensioner WearEGR System Issues / Coolant Leaks
Audi
5.2 FSI V10
R8 V10 · Typ42 · 2008–2015
76/100GOOD
Rod Bearing FailureOil Leak – Oil Pump Driveshaft Seal on Timing Case
Audi
EA855 Evo
RS3 · 8V · 2015–2020
74/100GOOD
Timing Chain & Tensioner WearTurbocharger Wear at High Mileage
Audi
BNS
RS4 · B7 · 2006–2008
42/100RISKY
Catastrophic Engine Failure / Cracked Engine BlockIntake Manifold Debris Ingestion
Audi
CAKA
S4 · B8 · 2009–2012
54/100RISKY
Timing Chain Tensioner FailureCrank Pulley / Accessory Belt Failure
Audi
AGB
RS4 · B5 · 1999–2001
42/100RISKY
Turbocharger Failure (Twin K03/K04 Units)Oil Leaks (Rear Main Seal, Cam Cover Gaskets, Valley Pan)
Audi
CGWC
S4 · B8.5 · 2012–2016
46/100RISKY
Timing Chain Tensioner Hydraulic FailureDSG/S-Tronic Mechatronics Unit Failure
Audi
CFSA
RS4 · B8 · 2012–2015
52/100RISKY
Rod and Main Bearing Wear from Oil Starvation Under Hard CorneringTiming Chain Tensioner Wear and Cold Start Rattle
Audi
BCY
RS6 · C5 · 2002–2004
48/100RISKY
Plastic Coolant Pipe FailureK04 Turbocharger Wear and Failure
Audi
EA189
A3 TDI · 8V · 2012–2016
45/100RISKY
EGR Cooler Coolant LeakEGR Valve Failure and Intake Clogging
Audi
AMU
TT 225 · 8N · 1998–2006
48/100RISKY
Oil Sludge BuildupHead Gasket Failure / Overheating
Audi
CJXC
S3 · 8V · 2013–2020
46/100RISKY
Premature Engine Failure / Cylinder Wall DamageCrankshaft/Camshaft Correlation Fault (P0016)
Audi
CASA
Q7 · 4L · 2009–2015
40/100RISKY
EGR Cooler Internal Leak, Hydrolocking RiskOil and Coolant Cross-Contamination in Engine Valley
Audi
CEPA
TT RS · 8J · 2009–2014
52/100RISKY
Rod Bearing WearTiming Chain and Guide Wear
Audi
AEB
A4/S4 · B5/B6 · 1997–2005
62/100SOLID
Rear Coolant Flange LeakTurbocharger Failure / Compressor Wheel Damage
Audi
BUH
RS6 · C6 · 2008–2010
45/100RISKY
Auxiliary Belt Tensioner FailureCarbon Buildup on Intake Valves
Audi
EA888
Q3 · 8U/F3 · 2018–2024
66/100SOLID
Oil ConsumptionLow Oil Pressure at Cold Start
Audi
AMK
S3 · 8L · 1999–2003
62/100SOLID
Boost Leaks - Turbo Hoses and Elbow PipesCoolant Leaks and Overheating Risk
Audi
CVXA
SQ5 · 8R · 2013–2017
44/100RISKY
Sudden Major Engine FailureEGR Cooler Failure Risk
Audi
CATA
Q7 · 4L · 2007–2015
48/100RISKY
EGR Cooler Cracking / Coolant LossInjector Seal (Copper Washer) Leaks and Oil Dilution
Audi
BFM
A8 · D3 · 2003–2010
46/100RISKY
Timing Chain Tensioner Drain-Back and Guide Rail WearHigh-Pressure Fuel Pump Wear