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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 02-14-2013, 05:46 PM
10Go 10Go is offline
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Mein Auto: E65 745i
Coolant Smell

While at idle or at a light I can smell coolant. I light smell. Its almost like something is hot. I have checked for leaks in the front around the main hose. The only thing I visibly see is dried coolant around the reservoir.

Any advice is welcomed. I'm starting to feel so paranoid about my 7 now. It hasn't been two years with it yet.
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  #2  
Old 02-14-2013, 06:59 PM
Ultimate745i Ultimate745i is offline
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Yes the Reservoir is a common leak. Mine was cracked right below the small hose going to top of radiator so it was hard to
figure out where it was. it's a very easy DIY repair and the reservoir itself was under $50. Look here for excellent OEM pricing:
http://www.rockauto.com/
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Old 02-14-2013, 07:22 PM
10Go 10Go is offline
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Thanks.

If I were looking for that "weep hole" leak, where would I look?
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Old 02-14-2013, 07:28 PM
Ultimate745i Ultimate745i is offline
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coolant would primarily be on the passenger side of engine underneath.
You would probably see evidence of it right around your a/c compressor area.
Should be a pretty steady leak. (under hood, facing engine it would be to your bottom left side.)
If you have coolant leaking "high" on the engine, it's probably not the "weeping leak".
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Old 02-14-2013, 07:32 PM
Ultimate745i Ultimate745i is offline
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Take a flashlight and check around the reservoir area. The only other main leak would be the water pump which would be the very top pulley wheel on the left side of engine.
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Old 02-15-2013, 06:49 AM
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Old 02-15-2013, 07:33 AM
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If you remove the 6 bolts on the engine cover there is a little "T" valve in front of the throttle body check there an make sure its not leaking also.
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