Knocking sound in reverse and taking off.
Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 3 Series
Forum Discription: This forum will deal with any issues on the BMW 3 Series (E21, E30, E36, E46, E90, E91 & E92)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=1089
Printed Date: 22-May-2024 at 12:38
Topic: Knocking sound in reverse and taking off.
Posted By: paul320i
Subject: Knocking sound in reverse and taking off.
Date Posted: 09-March-2003 at 23:39
| I seem to be getting a intermittent knocking sound and judder when reversing and taking off from junctions etc, this dose'nt happen all the time seems to happen more when the car has been driven for 30miles or so, most of the time its fine but occasionally when it does it its like being on a rocking horse, i'm pretty new to my car but was thinking maybe the final drive unit?, what do you guys reckon and how do i fix it?? |
Replies:
Posted By: paul320i
Date Posted: 10-March-2003 at 00:22
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Posted By: nickp
Date Posted: 10-March-2003 at 00:36
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could be your prop coupling paul, only reason i say that mate is i had a similar problem but worse!!. theres a bush on your prop (my mechanic called it a doughnut bush!). if thats going mate the prop starts to judder and you feel it, especially on take off or in reverse. not defo your problem but if you can get underneath and check for wear on that bush at least you can eliminate it! hope this helps, good luck! ------------- '91 E30 320i 2 door auto |
Posted By: paul325i
Date Posted: 10-March-2003 at 08:00
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Is the clutch ok? First sign of a worn out clutch is the judder at low revs but i'd check the doughnut first aswell could well be that. Nice name by the way. ------------- 
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Posted By: paul320i
Date Posted: 10-March-2003 at 11:42
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Clutch seems fine in every other gear, no slipping etc, dose'nt happen all the time which is the mysterious bit. -------------
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Posted By: jonb
Date Posted: 10-March-2003 at 12:33
| sounds like the diff carryer bush mate. thats the simtoms anyway. although it could also be the rear subframe bushes. |
Posted By: paul320i
Date Posted: 10-March-2003 at 23:12
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cheers guys, i went out in it tonight and could'nt get it to do it once, its booked in at the garage in the morning, i bet the thing will be perfect when i try and demonstrate the problem. -------------
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Posted By: paul320i
Date Posted: 10-March-2003 at 23:13
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.................ho yeah , replacing the bush, is that a expensive job? -------------
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