I just bought a 2005 A4 Audi Avant 3.0 at 60K couple months ago and I drove it today , the MIL was on and the car started shaking whenever I tried to speed up. A friend of mine who has OBD scanner told me that I have Code 300 which is random misfire. What cause this problem and what should I do before I take it to the dealership. Thanks.
Hi,
Thanks for the response.
I took my car to the shop and had the coil packs replaced, out of 6 coil packs were dead.
Check spark plugs and coil packs
P0300 code is a random multi misfire in the engine.
Could be a coil pack or an injector, or down to poor service maintenance...
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i have had the same problem three times, i bought a 2004 audi a4 3.0 and every time i try to speed up it shakes and is non responcive i replaced one of the coil packs, then after a week the problem started again, i had all 6 sparkplugs repaced, this solved the problem for another week, now im having the problem again, what could it be?
Same problem thinking of pulling the battery and letting it reset. From what I know of small engines they rarely are the problem. It always seems to be the carbs.
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