Audi A3 Ignition Coils
Compare ignition coils prices for the Audi A3 from top UK retailers
From £30.00
🔍 Get exact-fit parts for your Audi A3
Different Audi A3 variants use different ignition coils. Enter your reg plate for guaranteed compatible parts matched to your engine and year.
5 ignition coils found for Audi A3
Part No: GN10791-12B1
Ignition Coils for Audi A3
Part No: 0 221 504 703
Ignition Coils for Audi A3
Part No: DIC0109
Ignition Coils for Audi A3
Part No: 245728
Ignition Coils for Audi A3
Part No: 48348
Ignition Coils for Audi A3
⚠️ Estimated prices. These are typical UK prices for Audi A3 ignition coils. Exact prices and fitment depend on your specific vehicle. Enter your reg for accurate results.
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About Ignition Coils
What do they do?
Ignition coils convert the 12V battery voltage into the 20,000–40,000 volts needed to create a spark at the spark plug. Modern engines use one coil per cylinder (coil-on-plug) rather than a single coil and distributor.
When to replace
When they fail — there's no fixed replacement interval. Symptoms include misfires, rough idle, the engine management light flashing, reduced power, and poor fuel economy. Failure of one coil doesn't mean all need replacing, but they often fail in sequence.
Brand guide
Bosch, Denso, and NGK are the top brands. Delphi and Beru also supply OEM coils. Cheap coils can cause misfires and damage the catalytic converter.
💡 Top tip: If one coil fails, swap it with a coil from another cylinder. If the misfire follows the coil, you've confirmed the diagnosis. This simple swap test avoids unnecessary replacement.
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