|
|
|
07-28-2009, 01:41 AM | #1 |
Captain
35
Rep 685
Posts |
Rattle
I know this has been mentioned elsewhere, but i can't find anything conclusive.
When I turn my car off, without the clutch depressed, there's a terrible rattling sound comes from the engine bay. It sounds mechanical, not plastic. If I depress the clutch and turn it off, there's no noise. Anyone got any ideas? |
07-28-2009, 02:27 AM | #4 |
Lieutenant Colonel
44
Rep 1,883
Posts |
Probably the gearbox. The Getrag box rattles unless it's under load. Depressing the clutch pedal disengages the gearbox from the engine. You should hear the gearbox rattle coming from an idling M3 with big cams!
__________________
Driving - Manual E90 M3 (Melbourne Red/Black).
Riding - BMW R1200RS Sport. |
Appreciate
0
|
07-28-2009, 05:24 AM | #6 |
Captain
24
Rep 895
Posts |
If it's normal, why don't I hear this rattle on my car? Not that I'm complaining!
__________________
08 BMW 135i Sport Coupe | Manual | Sparkling Graphite | Coral Red Boston Leather | 10 Speaker Hi Fi
|
Appreciate
0
|
07-28-2009, 05:56 PM | #7 |
Private First Class
5
Rep 134
Posts |
Depending on how loud the noise is, as someone mentioned getrag gearboxes have some "rollover noise" and is quite normal.
If you think the noise is excessive it could be your clutch/flywheel. 130i models were known to have a problem with noisy clutch/flywheel. Mine was replaced under warranty. One of the symptoms was the rattly noise when turning engine off as you described it. On my car the noise was the worst with clutch depressed half way and disappearing completely once clutch depressed fully. |
Appreciate
0
|
07-29-2009, 01:39 AM | #10 |
Retired trackie
36
Rep 1,527
Posts |
Clutch bearing, trust bearing.... what is that called? It is common for many manual cars.
__________________
TAKA 一仔BLOGブログ:
BMW 1 series M 2011! Delivered 18/11/11. |
Appreciate
0
|
07-29-2009, 04:57 AM | #11 | |
Major General
2816
Rep 7,637
Posts |
Quote:
All this said, like Guran, mine doesnt have this noise/rattle eother.. |
|
Appreciate
0
|
07-29-2009, 08:57 AM | #12 |
Retired trackie
36
Rep 1,527
Posts |
Thanks . Lurking car forum sites for years actually will learn something.
__________________
TAKA 一仔BLOGブログ:
BMW 1 series M 2011! Delivered 18/11/11. |
Appreciate
0
|
07-29-2009, 07:25 PM | #13 |
Major General
2816
Rep 7,637
Posts |
|
Appreciate
0
|
07-30-2009, 01:30 AM | #15 |
Captain
35
Rep 685
Posts |
Thanks folks for putting my mind at rest that the gearbox isn't going to fall out of my car - I was starting to wonder...
It seems we have a concencus over what is causing the noise. What still has me curious is - how come not everyone with a manual gearbox seems to have the noise? Maybe this is like the bonnet insulation - some get it - some don't. And there's no clear pattern. Maybe there was a "Gearbox Rattle Delete" option that I should have selected when I orderes the car. |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|