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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 04-21-2007, 08:52 AM
beem beem is offline
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Location: M'sia
 
Join Date: Jan 2007
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Mein Auto: 318i 2.0
Angry e46 N42 318i Valvetronic idling vibration problem

Hi all,

Noobie reporting in. Currently my car (N42) is having a vibration problem during idling (been a year now and its not solved). The car seems to be idling at the normal 800rpm when the aircond is on. Engine mounting, gearbox mounting, intake separator, fuel filter regulator, ignition coils, spark plugs all have been changed.

The car was diagnosed with a problem on cylinder 4 (nearest to the cabin). The rough running cylinder check showed a value of around +3.10, which is marginally failing. When the car reaches operating temperature, the vibrations will be there. It seems to be heat related and suspected to be some sort of leakage. However, my mechanic performed a leak compression test and it shows alright (Maybe the results are good since the car is cold).

Could anybody let me know if there is any rubber sealent or some sort of gasket near cylinder 4 which may cause this problem? Or anything else..O2 sensor issue? GT1 diagnosis shows absolutely no faults appearing.

I heard from a friend that the N42's cylinder 4 is prone to heat issues.

Please do help me!

Many Thanks!
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  #2  
Old 04-23-2007, 04:18 AM
beem beem is offline
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Location: M'sia
 
Join Date: Jan 2007
Posts: 2
Mein Auto: 318i 2.0
bump bump??? Nobody experienced this problem before?
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  #3  
Old 06-13-2012, 08:33 AM
kiritubhadia kiritubhadia is offline
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Location: UK
 
Join Date: Jun 2012
Posts: 3
Mein Auto: BMW 2.0i sport 2004
BMW2.0i 2004 idle vibration

Quote:
Originally Posted by beem View Post
Hi all,

Noobie reporting in. Currently my car (N42) is having a vibration problem during idling (been a year now and its not solved). The car seems to be idling at the normal 800rpm when the aircond is on. Engine mounting, gearbox mounting, intake separator, fuel filter regulator, ignition coils, spark plugs all have been changed.

The car was diagnosed with a problem on cylinder 4 (nearest to the cabin). The rough running cylinder check showed a value of around +3.10, which is marginally failing. When the car reaches operating temperature, the vibrations will be there. It seems to be heat related and suspected to be some sort of leakage. However, my mechanic performed a leak compression test and it shows alright (Maybe the results are good since the car is cold).

Could anybody let me know if there is any rubber sealent or some sort of gasket near cylinder 4 which may cause this problem? Or anything else..O2 sensor issue? GT1 diagnosis shows absolutely no faults appearing.

I heard from a friend that the N42's cylinder 4 is prone to heat issues.

Please do help me!

Many Thanks!
Hi, got same problem, no.4 ignition coil blew up, got that changed , however the engine has some vibration when idle, and acceleration feels sluggish. Can anyone help.. BMW 318i Sport, but has a 2.0l 4 cylinder engine..
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  #4  
Old 06-13-2012, 04:06 PM
Fast Bob's Avatar
Fast Bob Fast Bob is online now
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Mein Auto: 2004 330Ci ZHP 3 pedals
Quote:
Originally Posted by kiritubhadia View Post
Hi, got same problem, no.4 ignition coil blew up, got that changed , however the engine has some vibration when idle, and acceleration feels sluggish. Can anyone help.. BMW 318i Sport, but has a 2.0l 4 cylinder engine..
NecroPosting is alive and well !

Noob, the thread you`re responding to has been dead for over **five years**.

Please check the dates before posting....
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  #5  
Old 11-13-2012, 04:25 AM
kiritubhadia kiritubhadia is offline
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Location: UK
 
Join Date: Jun 2012
Posts: 3
Mein Auto: BMW 2.0i sport 2004
BMW318i sports 2004 idle vibration

Dear Fast Bob,

Can you please guide me to a current E46 forum..
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  #6  
Old 11-13-2012, 09:19 AM
Fast Bob's Avatar
Fast Bob Fast Bob is online now
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Location: Here, there, everywhere....
 
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Mein Auto: 2004 330Ci ZHP 3 pedals
Quote:
Originally Posted by kiritubhadia View Post
Dear Fast Bob,

Can you please guide me to a current E46 forum..
You`re *in it*, my man....post any questions here, just start your own thread.
__________________
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*Please support the Wounded Warrior Project*

When faced with choosing between two evils, always go with the one you`ve never tried before....
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