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318I conks out. Takes half hour to restart

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Hi thanks for adding me. Am about to buy very cheaply a 2002 318 auto. However, it has a problem that when driving it can cut out and take half hour to start. It's not all the time mind you.

Had something similar years ago with a 528e. Turned out to be battery terminals were loose lol

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Well it happened today. Yesterday it ran fine although I did only a couple of miles, stopped then again a couple.

Today it got about 5 miles and stopped at a set of lights. Police pushed me to a safe spot. Got it running and put fuel in. Drove to Halford ok, then wouldn't start again. Got it running but left it. The dash shows a cog with an exclamation ❗ inside it next to the D on the dash. 

Any clues to where to start looking?

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Not sure about this, but do you know if your engine has an egr valve?

as I had a similar issue on an old Astra I owned and this was the cause of my problem. 

Try to unplug it if it does have one and see if this cures your problem. 

Failing that try unplugging the MAF sensor on the air intake pipe

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2 minutes ago, ibrahimx2001 said:

Not sure about this, but do you know if your engine has an egr valve?

as I had a similar issue on an old Astra I owned and this was the cause of my problem. 

Try to unplug it if it does have one and see if this cures your problem. 

Failing that try unplugging the MAF sensor on the air intake pipe

Cheers but surely they wouldn't have any effect on the dash warning?

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After doing a bit of reading it seems it's something to do with the transmission. 

Have you checked the voltage on your battery?

best is to take it to a BMW specialist in your area as they will likely know what to check as it's quite a common thing apparently 

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This morning it started up fine. Left it running to warm up. Same thing happened. Died and same warning light appeared 

! Inside a cog next to the P Park on auto dash

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this will most likely be the start of the crankshaft sensor failing... this happened to mine. i have a 2004 facelift 318ci... the sensor goes when the engine is within running temp....

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