KNOWN FAULT · Volkswagen · Audi · Seat

Ignition coils on the 20-valve 1.8 T

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

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.

Sources from the original database

Anonymous answer, no personal data.

How much does it cost to repair this fault?

Approx. €100–200 for coils and leads (German guide).

A rough figure from the original database, not an up-to-date quote.

How is it checked?

Read the per-cylinder misfire codes and replace the affected coil (preferably with a revised one).

What are the symptoms?

Misfires, hesitation and the engine light; the engine runs on one cylinder fewer.

Which cars and years does it affect?

Brands: Volkswagen, Audi, Seat
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

Find garages near you and, before you say yes, check whether the quote is reasonable.

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