IsItAGoodCar

Common Problems with the
2016–2024 Audi A4 Mk5 (B9)

We've identified 1 known issue that can affect the 2016–2024 Audi A4 Mk5 (B9). None are considered critical, but they're worth knowing about before you buy.

1
Known Issues
0
Serious
1
Moderate
0
Minor

All Known Issues

Water Pump / Thermostat Leaks

ModerateCooling System

Later petrol and diesel engines still suffer coolant leaks from pumps or plastic thermostat housings.

Most affected: All variants

Estimated cost: £350–£750Affects: 2016–2024Often appears around: 40k-90k miles

Typical symptoms

  • •Low coolant warning
  • •Pink residue around front of engine

What to inspect before you buy

  • ✓Check coolant level cold
  • ✓Look for recent cooling-system repair invoices

Buying Tips for the 2016 Audi A4 Mk5 (B9)

  • ✓Check virtual cockpit, MMI and reversing camera thoroughly
  • ✓TDI buyers should watch for NOx-sensor and AdBlue faults
  • ✓S tronic cars should feel clean and decisive

Browse 2016–2024 Audi A4 Mk5 (B9) in our Directory

View MOT history, registration data, and reliability scores for 2016–2024 Audi A4 Mk5 (B9) vehicles.

View 2016–2024 Directory

Other Audi A4 Mk5 (B9) Year Periods

2016–2024

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