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Old 05-27-2012, 03:16 PM   #1
Registered User
Join Date: Mar 2012
Location: Fort Myers, FL
Posts: 388
My Ride: BMW 325i 2002
Unhappy Engine knocking sounds... Please help!

Hey everyone!
I really need your help guys! Many times I posted my questions on BMW forums and always got the right answers.

Anyway, here is the video where you can hear these strange knocking sounds coming from my 325i 2002 engine:

It started yesterday after I changed the oil, oil filter, fixed valve gasket sealant, changed a boot on first coil and changed all the spark plugs.
The reason I had to open up the gasket is because I had a very bad oil leak into the first coil compartment. Turned out, my last mechanic did not properly place that rubber sealant piece on first three coils. So I fixed it and no more oil there now. Initially the car was misfiring really bad, so I thought that was the problem.

However, now the car misfiring even worse I got the denso irodium sprak plugs from Advance Auto Parts... They said that Bosch were discontinued (weird). Anyway, they told me that the gap in spark plugs should be 0.44, but then I found on the net that it should be only 0.32... I tried both combinations... But still a bad misfire and knocking noise.

And these are the codes that I have:

If you anyone had the same problem, please share your experience!
Thanks in advance!
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