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To Roy on Oil Pressure Sensor Warning '88 735i (archive)
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Posted by Ramesh on April 01, 2002 at 11:43:47:

In Reply to: Re: Oil Pressure Sensor Warning '88 735i posted by Roy on April 01, 2002 at 10:30:43:

Roy:

I might have been the one who posted the Oil Press Sensor. I have already bought one fron BMW. Question now, regarding replacement.

You refer to unscrewing bolt and overflow line on the collant tank. Do you have to drain ALL the coolant that's in the tank as well.
Thanks for your help.

Ramesh.
1990, 735 il


To replace it you do have to remove the coolant reservoir......two plastic bolts and slide off the overflow line. Then unplug the wire...I used a deep socket that fit right over the sneder unit and screwed it out. The part for BMW cost $10.60....so why not use original.....the whole job took about 15 minutes.....

1988 735i 5 spd, 73,000 miles
1989 911 Cabriolet 24,000 miles

About once a month, I get this warning. I saw a message a few days ago saying it is located on the head, drivers side. (Why would an oil sensor be located on the head anyway?) I think I located it, but how in the hell do you get to it? It looks like you have to remove the coolant resovoir or take the FI off the car. Any suggestions? Auto Zone sells the part for $11.99. Will that work or do I need a BMW sensor?




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