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  #1  
Old 07-15-2004, 03:19 PM
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Join Date: Jul 2004
Posts: 3
Unhappy 320 CE Hot Running Problem

Please help me with this problem.

I have a 1993 320CE (W124 coupe) with a hot starting / running problem.

The car has done 88,000 miles. It runs perfectly cold, after the first 5 - 10 minutes it can cut dead without warning. This can happen at any time - at idle or in full acceleration.

On cutting out I have to wait around 5 - 10 minutes. The engine will crank but not fire. After the 5 - 10 minutes it will restart and run perfectly again. Until the next time which could be 2 minutes or 2 days away.

The problem can also occur if the car is not running but the ignition is left on.

My record I believe is 9 cut outs in a day. I have gone for around 2 days without the problem occuring.

To date I have done the following:

Had the fuel system pressure tested - in workshop and on the road - OK

Checked control unit fault memory - nothing specific found

Had the ignition circuit checked completely

I have replaced

Fuel cap

Ignition wiring (low tension)

Engine ECU (albeit with a second hand unit)

Fuel pump relay

Ignition coils - the car has the ignition system with 3 coils and no distributor

Alarm & immobiliser



I believe this problem has taken years from my life. Can anyone help?

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  #2  
Old 07-15-2004, 03:54 PM
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Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
Do a search on "OVP"
...and then change it if it is the original....
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  #3  
Old 07-16-2004, 03:46 AM
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Join Date: Jul 2004
Posts: 3
Ok thanks for that I'll change the OVP tomorrow and let you know what happens.
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  #4  
Old 07-18-2004, 02:13 PM
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Join Date: Jul 2004
Posts: 3
It was the original OVP unit.

I changed it and ran around yesterday, gave it a few hot starts no problem.

Looks good, but I will re-post if the problem comes back

Thanks a million for your help. I'm a much happier man now.

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