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E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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Old 07-20-2012, 08:13 AM
GlobeTec GlobeTec is offline
Registered User
Location: Denmark
Join Date: Jul 2012
Posts: 1
Mein Auto: E36
Starting problems on M42B18

Hello you all, I have never posted anything here so this is my first time to seek help outside go my friends group.

My situation is like that:

Recently I bought a BMW E36 316i model 1994 driven 220.000 km. and it worked fine to start with until one day the motor broke down and after a quick look I found one of the spark-plugs broke in peaces into the cylinder and therefore made a deep scratch in the cylinder.

To make my live easier and try to keep away from replacing the head of the motor I found another one with more power
The motor I found is M42B18 model 1995 driven 120.000 km. (comes from E36 318is coupe) I got the almost untouched out of the previous car that was crashed with everything like computer, coil, etc. etc.

I replaced the motor and connected everything but it just won't start (minimum request of an motor )

I have checked the sparks, coils, fuel lines, fuel pump, all electrical cords, airflow sensor but everything is working and in order still it won't start, it turns over just a bit but it's like it's not firing.

So at the moment I am standing with a car that is not working and really post of wife

I hope someone would be kind enough to take the time and give me some ideas how to diagnose the situation since I'm all out of ideas.

I toke this video while trying to start the car.

Best regards.
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