IsItAGoodCar
Reliability Guide

Common Problems with the
2016 Audi A4 Mk4 (B8)

We've identified 3 known issues that can affect the 2016 Audi A4 Mk4 (B8). 1 of these are serious faults that could be expensive to repair.

3
Known Issues
1
Serious
2
Moderate
0
Minor

All Known Issues

DL501 S tronic Mechatronic / Clutch Faults

SeriousGearbox & Transmission

The DL501 can develop control and clutch faults that cause harsh engagement or loss of gears. Confirm the transmission code rather than applying this warning to Multitronic or Tiptronic cars.

Warning Signs:

Jerky pull-away, Missing reverse or gearbox warning

What to Inspect:
  • Test low-speed shifts both cold and warm
  • Ask for fluid-service history and specialist fault diagnosis
Verified by IsItAGoodCar Research TeamUpdated

Water Pump / Thermostat Housing Leak

ModerateCooling System

The plastic water pump and thermostat housing warp and leak coolant, a well-known weakness across the EA888 range. Some cars fail twice before 100k miles.

Est. Repair Cost: £350–£750
Warning Signs:

Low coolant warning, Pink crust near housing, Sweet smell after shutdown

What to Inspect:
  • Inspect around the pump and housing
  • Verify coolant level from cold
  • Check for recent cooling-system work
Verified by IsItAGoodCar Research TeamUpdated

TDI EGR Faults / DPF Regeneration Problems

ModerateExhaust & Emissions

EGR faults and unsuccessful DPF regeneration can cause reduced performance. DPF equipment varies on older diesels; confirm fitment and diagnose the cause before assuming that cleaning will solve it.

Warning Signs:

Emissions warning, Reduced power or frequent regeneration

What to Inspect:
  • Review driving pattern and emissions-repair history
  • Request EGR operation and DPF pressure/soot-load checks
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2016 Audi A4 Mk4 (B8)

  • CRITICAL: monitor the oil level on pre-2012 2.0 TFSI cars and expect proof of piston-ring work
  • Listen for timing-chain rattle on petrol models after an overnight rest
  • Check steering weight and self-centering carefully
2015
Check a 2016 Audi A4 Mk4 (B8) by Registration