Question about 1991 BMW 5 Series

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Key will not turn

I have a 1991 BMW 520i and I drove to a couple places and then when I was about to leave for work, I tried to turn the key and it won't turn and the steering wheel won't lock up either when the key is not in the ignition.

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  • ben_tho_hes Mar 13, 2009

    hej har en bmw med samme problem har prøvet atrense tænding og nøgle ingen virkning på min bil



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Spray some WD40 into the lock and see if that helps but it sounds like the key is starting to wear. This is caused by putting too many things on the key chain and it wears a lot faster

Posted on Jan 09, 2009


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1 Answer

Bmw 520i E34 1991 very small spark pn plug almost unseeable car wont start jst keep swing. After driving parked car switched engine off after 5min would not start. Please help

1. if automatic, try to shift gear to drive then back to park then try to start again. do it twice , if still wont start
2. check battery terminals if lose or with white substance pour clean water until substance is dissolve. then start.
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1991 BMW 520i(Euro Spec) Relay for the fuel pump locations

Did you check fuse? and if so im not really sure as to the location your car for i have necer worked on one but on most cars it is located undder the hood usely on drivers side. Look for black box that has cover on it,cover will remove and should have diagram on it indicating location or relay in box..Like i said this may not be location on your car....good luck and if need more help fill free to contact me..

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1 Answer

I drove my 1985 325 bmw today no problems, parked it & now the key won't even turn & the steering wheel is locked. Is there an anti theft thing that is causing this?

No it sounds like a problem with the lock cylinder. Spray some WD40 in the key hole and move the key in and out a few times then try it. If it doesn't work you might have to replace the lock cylinder. Also you could try a different key.

May 15, 2010 | 1985 BMW 3 Series

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How do re-tune in my fob to my car alarm, the car is a bmw 520i on a L reg

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go to the PASSENGER side door.insert the key ,lift the handle up and hold,rotate key to the right.the lock will come up manually and you can gey in the car

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My 520i drains battery overnight

This is obviously a wiring problem, I would start testing all circuits with no key n the ignition to see which ones are drawing power. The first circuit I would check would be for the starter selonoid, as this would be the most practical place to start. then I would move onto he ignition. Good luck and remember to rate all the solutions you get.

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i would check the fuse for the fuel pump and the relay.

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