4.4 Liter Sounds......knocks, Ticks - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 04-04-2005, 09:56 PM
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Hi all,
Just wondering what, if any, noises your 540 engine makes. mine is a 99 540IA with 85k miles on it. Mine once warm and at idle has a ever so slight valve tap noise.....AND a more bothering deeper(but not too bad) slow tick or knock only audible from the front wheel wells or under car. i just assume BMW to be ultra quiet, just wondering if there is anything to worry about. Thanx, Nick
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#2 (permalink) Old 04-05-2005, 05:31 AM
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Your 540 sounds normal to me.
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#3 (permalink) Old 04-05-2005, 09:08 PM
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I have a '99 540/6 with 110K miles and I think you are experiencing normal noise for that motor. I heard somewhere (probably on the Roadfly forum) that there was actually a TSB regarding the "rod knock" type of noise in the V8 and that it is normal. If you really listen closely, my car at idle, particularly with the A/C compressor on, sounds a little like an old WWII submarine under water, but once the revs go up the sweet music begins...

<span style='colorurple'>Eric S.</span>
2006 Honda Odyssey EXL-RES
2006 Honda Accord V6 EX-L Sedan
1999 BMW 540i 6-Speed (Sold to M3UOND on 9/21/06)
1991 Honda Civic Si - Occasional Beater
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