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Old 10-06-2003, 09:20 PM
babtahi babtahi is offline
Rookie DIYer
Join Date: Jun 2002
Posts: 106
Random Vacum Pump Noise from Trunk C280

I have fixed my headrests, rough idle, and trunk lock vacum problem. My only problem that i still have is the trunk vacum button not popping the trunk lid or the remote key opening the trunk with the double click of the button. I have no real urge to fix this but...

I hear the rear vacum pump which is on the right side of the trunk randomly go on and off when i am driving or in park. It makes a noise like it is working and then after about 45 secs. starts pumping again. I don't really know why, logic makes me beleive that there is a leak and it has to keep working due to a leak, but i dont really know.

I appreciate all the help, this forum has been a great learning tool for me
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