KNOWN FAULTS · Audi

Audi A4 (B5) 1.6 / 1.8 / 1.8 T common problems.

2000–2001 · Petrol

Sources are not verified in real time and no entry confirms that your car is affected.

2 known faults with sources

Applies if: Only the 1.8 T.

Ignition coils on the 20-valve 1.8 TEngine

Engine / equipment: 20-valve 1.8 T: Golf IV, Bora, Passat B5, Audi A3 8L and A4 B5, Seat León
Period mentioned: Approx. 2001–2003
Symptoms: Misfires, hesitation and the engine light; the engine runs on one cylinder fewer.
Possible cause described: The individual coils on 1.8 T engines from those years failed frequently. The German guide quotes about €100–200 for coils and leads.
Check for the garage: Read the per-cylinder misfire codes and replace the affected coil (preferably with a revised one).
Cost cited in the source: Approx. €100–200 for coils and leads (German guide).A rough figure from the original database, not an up-to-date quote.

Applies if: Defects documented by US recalls; European cars may have equivalent campaigns: check by VIN.

Ignition switch, steering joints, air-flow meter and airbag on the Audi A4 B5Known weak points

Engine / equipment: Audi A4 B5 (petrol, S4 and TDI)
Period mentioned: 1995–2001
Symptoms: A plastic ignition-switch housing that breaks (1996–1997); steering tie-rod seals letting in water and dust and wearing the joint (1998–1999); an air-flow-meter screen damaged by backfires on cold starts (1998); a brake-servo vacuum-hose valve on automatics (1997–1999); an intermittent horn from a poor earth; non-azide driver-airbag inflators that can rupture (1997–2002); an airbag that fires from static electricity in low humidity (1996–1997).
Possible cause described: Defects documented by US recalls; European cars may have equivalent campaigns: check by VIN.
Check for the garage: Check airbag campaigns by VIN; check steering play.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.