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BMW 3-Series (E90 E92) Forum
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Acceleration Rattle
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| 04-23-2010, 06:28 AM | #1 |
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Acceleration Rattle
When accelerating hard in either D, S or M mode my car makes a metalic rattling sound which is driving me crazy.
Has anyone else experienced this? |
| 04-23-2010, 07:46 AM | #2 |
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BM Baby
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Hi mate and welcome.
Could possibly be the wastegate actuator issue? Have a look on YouTube for that and see if it sounds like your noise. Alternatively, could it be coming from the exhaust? |
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| 04-23-2010, 08:02 AM | #3 |
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Private First Class
 
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wastegate rattle is common on 335i's
usually at low revs and from cold ? There are quite a few threads on here, defo worth a search. Dealers got a set method on dealing with it, think they do an ECU update, then replace actuators. Well they did for me and it seems to have cured it. |
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| 04-23-2010, 09:08 AM | #4 | |
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BM Baby
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Quote:
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| 04-24-2010, 06:09 AM | #5 |
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Captain
 
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Don't think wastegate rattle would happen on hard acceleration though - it's pretty much only on spool-down. You'd notice it as the engine returns to tickover speed if you blip the throttle when you're stationary in neutral.
Last edited by seanblee; 04-24-2010 at 07:21 AM.. |
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| 04-24-2010, 06:55 AM | #6 |
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The Tarmac Terrorist
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Drives: 997.2 GT3
Join Date: Mar 2007
Location: ''Fandango Towers''
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Major known issue, wonder how much this has cost bmw.
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997.2 GT3
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