2007 Audi S3 2.0 tfsi
P0300   random multiple cylinder misfires

1 points

Problem added: Mar 7, 2016 (4 years ago)
Engine management light constantly on. Codes read as followed :
P0300   random multiple cylinder misfires

P0303 cylinder 3 misfire detected

P0304 cylinder 4 misfire detected

P0302 cylinder 2 misfire detected

P0301 cylinder 1 misfire detected.

Car is showing no obvious signs of misfiring. Idling fine, no loss of power ect.
Engine management light can intermittently start to flash on and off ( approx for about 5 seconds), and then go back to solid, when car is DEcellerating from around 90mph and around 4000 rpm.

On audi forums stating poss spark plugs/coil packs, but just need a bit of advice or any other suggestions please. Thanks

Car details
Car: Audi S3
Variant: 2.0 tfsi
Model Year: 2007
Category: Running Rough, Starting & Power Loss
Replies and Fixes
1,890 points

Mar 7, 2016 (4 years ago)
Certainly renew the plugs,
But also check the multiplug connection to the coil pack for bad connections in the terminals.
16,843 points

Mar 7, 2016 (4 years ago)
Don't know what mileage you have on car , but changing the plugs and coil packs certainly a good idea .
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