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7 Series - E38 (1995 - 2001)

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  #1  
Old 10-05-2012, 02:52 PM
dave_villalba dave_villalba is offline
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Location: Eldordao Hills CA
 
Join Date: Oct 2012
Posts: 1
Mein Auto: 1998 e 38
Intermittent coolant leak on 98 e38

Hello,
I need some help, I have a 98 e 38 and have just replaced the valley pan gasket, and the osv. Since the repair my car has had some coolant leaking from under the drivers side by the front tire. It has only done it twice since the valley pan change. It seems to be losing a cup or so of coolant every two or three short trips. It lost a little coolant before the valley pan was replaced as well. I am at a loss as the visible leak is occasional and it is not leaking very much when it happens. Also if I may one more quick question, my abs traction control light came on after i replaced a speed sensor in the front right wheel. I was told it should get rid of abs /traction control light being on. It didnt help, now my mechanic says it is the ABS control unit that causes the light to be on. Any suggestions? I purchased a used one and was going to replace mine, is it hard to install?

Thank you,
Dave.
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  #2  
Old 10-05-2012, 09:42 PM
gotrice415 gotrice415 is offline
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Location: San Francisco Bay Area
 
Join Date: Apr 2012
Posts: 66
Mein Auto: M3, 335Ci, X5d, 750i
For the coolant leak I would checker the aux water pump/heater valve since its the drivers side area.

For the ASC/DSC module. Fairly easy. Good luck!
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  #3  
Old 11-25-2012, 01:34 AM
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BigBoy740il BigBoy740il is online now
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Location: Arizona
 
Join Date: Jan 2012
Posts: 253
Mein Auto: 1989/1991 E30; 2000 E38
Check the coolant hose that connects the radiator to transmission heat exchanger. Put the car on a lift, remove the lower engine cover, and look for white/blue spots indicating the leak point.
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