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E36General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328.
hi guys .. i have 325is auto , i got it 2 month ago and since that i here knock noise under my car when i shift the gear from d to n ... after one month i begin to hear that noise when overdrive ( or shift gear4) is set ( after speed 80 km ) and if you driving the caron speed 120 km for example and remove ur foot from accelerator and accelerate again loud knock sound comes ... plz help ...
Your Ride: 92 525, 88 325 hardtop'ed vert and 83 320iS
Best thing to start off with is get under there and see if anything is loose, worn or torn.
Hve someone in the back seat and see if they hear it comming from a different place, possibly underneath them.
My e30 if you get on and off it with quick blips while driving you can hear the slack in the diff knocking together, but thats only when you get on/off repedly.
The noise your hearing sounds like the same thing I have, but if your diff isnt grinding or howling I wouldnt really worry about it to much. A car with over 100k miles is going to make some noises.
1992 525i, 1988 Hardtop'ed Vert and 1983 320iS