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7 Series (E23, E32, E38, E65, E66) General discussion and technical help for all year 7 series cars.

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Unread 10-08-2012, 09:55 PM   #1

Name: kingratm
Title: United Newb
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Join Date: Oct 2012
Location: Novi, MI
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Your Ride: 2006 BMW750LI
Low Coolant Light

I love my 750 LI, what a ride!
I have been taking care of it as my baby and I drive almost 3000 miles a month. Since last 2 months the low coolant light comes on after every 2-3 weeks, say after every 1000 miles or so. When I check, I see the low level of coolant and have been filling up the coolant. This worries me. If the vehicle is consuming so much of coolant, it means it is heating up a lot. Any suggestions ? What can be wrong? There is no leak or spill I see anywhere.

Regards and Thanks in Advance
King Rat
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Unread 10-09-2012, 11:30 PM   #2
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Name: DEATH2000
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Location: Calgary, Alberta
Rate My Car: 111 / 340
Your Ride: 1998 E36 328i sedan
How much are you having to add? Does the temperature gauge move at all?


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Unread 10-12-2012, 11:20 AM   #3

Name: tommystatefarm
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Your Ride: 07 BMW 750
I had this happen to my 7.

I just replace the lower Temperature Sensor (Engine Coolant Temperature) and it stop the leak.

The leak is very little and does start leaking when engine off. So it hard to find or locate. Try looking at that first before replacing any other part.

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