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JDA

1997 E39 2.8i difficult to start

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My 1997 E39 2.8i (213000 miles) when the engine is cold it will turn over, after several attempts it will start, runs unevenly for several seconds then runs perfectly. When the engine is hot will not start at the first attempt, it takes less time to start than when cold then runs perfectly. Previously the engine started @ first attempt cold & hot. Any suggestions to solve this problem?

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  • Cam or crank sensor
  • Air intake issue
  • Fuel pressure issue
  • Ignition issue

 

Just a few ideas above.

 

Could be all sorts really; are you able to get the car plugged in and have the codes read?

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21 minutes ago, JDA said:

Code reader - Crankshaft position sensor  

 

;)

 

Get it changed and use OEM BMW not a cheap aftermarket jobby

 

Get the part number off RealOEM and speak to Cotswold BMW (site sponsor) for a price :)

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The existing sensor is a genuine BMW part this failed after 4 years & 22000 miles, for various reasons I have a Russian sensor will see what happens!

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