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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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Old 02-01-2012, 12:18 PM
neeeeo neeeeo is offline
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Location: Slovakia
 
Join Date: Feb 2012
Posts: 21
Mein Auto: E46 - 318i N42
Unhappy Starting problem in cold weather - N42 engine

Hello,

my problem is a bit weird.

If it is outside too cold (under some -5 C) car won't run. I can start it without any problem, but motor die in 3 seconds. Then I can not start it anymore untill I leave it 30 min.
Once its started, its working well - no problem at all. Even if I leave it after ride up to 8 next hours, it will start well again.
But next day is the problem back.
I found, that after start - die the valetronic motor move excentric shaft to end position not aloving air to be sucked in to the engine. Starter just rotating motor freely with no compression.

The problem is gone in warm days. Reader didn't find any error messages.

I found some similar stories on the net, but none help me.

Let me please know if someone know how to fix this problem.

Last edited by neeeeo; 02-02-2012 at 10:05 AM.
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