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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 10-04-2005, 03:33 AM   #1 (permalink)
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clunky noise when shifting

hi guys, i really need some help as this is very annoying! my mechanic says my suspension is fine, but some or other bushings, 3 in total, are cracked and may need replacing, he says. so i'm here for a second opinion, any help will be greatly appreciated.
whenever i pull away in first or depress the clutch when shifting/changing gears, a clunk,thunk noise is heard. also my speedo along with the fuel economy gauge fails for at least 20 minutes, then continues working normally.

its a '98 323i 2.5l e36 with a lsd and asc&t
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Old 10-04-2005, 12:02 PM   #2 (permalink)
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clunking could be bushings or ur diff could be loose....as for the speedo, check the wiring and fuses to start....how often does it fail? what are the situations when it does?
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Old 10-05-2005, 05:57 AM   #3 (permalink)
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it fails whenever it wants really, it first happened in while on holiday in cape town, and i thought it must be the change in altitude, cos it happend quite a lot down there. when i got back home it stopped for a long time and suddenly started again, but not as frequent as when in cape town. it started again the other after i had my mechanic checkout the clunk noises, it started working again when i ran over a biggish bump, (our roads are quite s**t), im thinking it happens 'cos the diff is loose so it cant calculate the speedo readings properly or do whatever it does properly.
which bushing/s do you think is the culprit. cos i understand there are quite a few.
also, just remembered, i get heavy vibration when accellerating hard.
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Old 10-05-2005, 06:29 AM   #4 (permalink)
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Check the tranny mounts. They're known for being too soft and weak on E36's. If you find out that's your problem, be careful shifting till you get them replaced . . you could experience a missed shift.
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Old 10-06-2005, 04:38 PM   #5 (permalink)
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well the shaking at high speeds might be ur ball bearings going....as for the speedo im lost except that mabye its gone bad and you need a new one..might also be a electrical issue...have u modded ur car in anyway?
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Old 10-10-2005, 01:24 AM   #6 (permalink)
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its not a continuos shake/vibration, only while accelerating past +-4500 revs in 1st and 2nd, no mods whatsoever. i had quick check under the car while re-aligning wheels, the tranny mounts are in excellent condition, the mounts on the diff seem ok ie no play, but the flex disc is cracked and does look like its falling apart, so i'll be replacing that first to see if that sorts the problem.
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