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E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 04-18-2016, 11:39 AM
lkrides lkrides is offline
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Mein Auto: 90 325i convertible
Coolant level sensor

Hello folks.

My Coolant level light comes on, goes off unpredictably. I thought I'd dig around and see if it needs cleaning or something. To my surprise I pulled the whole thing out of the hole in the reservoir really easily. By whole thing I mean both the inner float sensor part and the housing it lives in. Coolant was leaking all over. Should that come out that easily?
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Old 04-18-2016, 06:23 PM
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BigBoy740il BigBoy740il is offline
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Mein Auto: 1989/1991 E30; 2000 E38
Did you remove the two pin connector, and unscrew the sensor? If I understand correctly, you're saying the reservoir also came up.... No, this should not happen. The front of the reservoir slides under a holster on the fender and the rear pins click into a mount. Inspect the large coolant hose to ensure its tightened securely to the reservoir. Click image for larger version

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Old 04-18-2016, 07:10 PM
lkrides lkrides is offline
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Location: Frederick, Md.
 
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Quote:
Originally Posted by BigBoy740il View Post
Did you remove the two pin connector, and unscrew the sensor? If I understand correctly, you're saying the reservoir also came up.... No, this should not happen. The front of the reservoir slides under a holster on the fender and the rear pins click into a mount. Inspect the large coolant hose to ensure its tightened securely to the reservoir. Attachment 559689
Thanks for your help.

I did none of that. The reservoir did not move. I grabbed the black part in the picture, lifted it straight up easily. Coolant began to leak from the reservoir. I put it back and the leak stopped.

The pics are different. This is on my E30.
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Last edited by lkrides; 04-18-2016 at 07:16 PM.
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Old 04-18-2016, 08:33 PM
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BigBoy740il BigBoy740il is offline
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Mein Auto: 1989/1991 E30; 2000 E38
Coolant level sensor

That is not the coolant reservoir. That is your windshield washer fluid container. You attempted to remove the washer pump and it will leak from the grommet if removed. The coolant reservoir is on the drivers side fender.
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Last edited by BigBoy740il; 04-18-2016 at 08:34 PM.
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Old 04-19-2016, 04:19 AM
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BigBoy740il BigBoy740il is offline
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Coolant level sensor

Check your engine coolant level in the reservoir (my pic). There is a high and low mark on the side. Add coolant until the level is between both marks with the engine cold.
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