99 ML 320 noise after shut-off - MBWorld.org Forums

wtd · 2013-03-14 00:07:27

I have a humming noise under the battery area on my 1999 ML 320 which lasts a few minutes after shutting-off the engine. Any ideas as to the cause? Thanks

03-14-2013, 04:51 AM

#2

gotca

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03ml350

...you should be thankful your auxiliary water pump is still running after all these years.
don't worry, it's a good thing.

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