Question about 1989 BMW 7 Series

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BMW 731 the ingnition switch will not turn to start possion

The key will turn to acc and will switch on to run but will not turn to start. What ways can I try to by-pass switch or what can i try?

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Hello! this seems a similar problem to the Vw Golf, you twist the key to start and zip nothing. I repaired my postmans Golf by (Hot wiring) the starter. If you are up for this? you need to run a wire to the small power lead on the starter solenoid. I did this by purchasing a 10amp push to make button type (Door bell) switch,(Maplins) I fused it and power came from the switched live off the ignition. It is still in full working order 5 years later.
To test that the starter solenoid is NOT the fault, remove the coil or disable the engine so it won't start. Then locate the wire on he solenoid (Usually at the top and of Spade type connection maybe Black/white) remove it gently use an insulated wire from the Positve+ battery terminal and touch the clip/spade connection the starter motor should come to life, be sure not to touch any other parts of the engine with the wire could short circuit and you could start a fire. If you are unsure about the testing I would take the vehicle to a Technician to investigate.
Sorry to have made such an epic about this but it may save you a lot of time and money.
Happy New Year! I hope it Starts (forgive the pun) well?
Paul 'W'

Posted on Dec 29, 2008

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ramonalees.com

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