headlight+ multiple issues HELP
#1
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Join Date: Nov 2014
Location: Pittsburgh
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C300 Sport 4 Matic
headlight+ multiple issues HELP
So the other night my eyebrow parking lights came on after car was shut off. passenger headlight. car sounded like a vacuum cleaner was running under the hood with key out of ignition. Had To pull battery cable off. Today same thing going on. And windshield wiper fluid is saying empty. heated seats stopped working. And rear Shade on back window wont move. Car is 2011 C300 4-matic. 133,000 miles been an awesome car no issues. I really don't want to go to the dealer. Can someone PLEASE toss me some knowledge on this issue/
#2
Check for moisture in the fuse box under the hood driver side. Had a similar issue after a rain storm when water got in the fuse box because of a crack in the fuse box cover. I had to replace the fuse box which eventually led to corrosion in the front SAM and connectors. Good luck.
#3
SPONSOR/MBworld Guru
WRT "car sounded like a vacuum cleaner was running under the hood with key out of ignition".... that's normal if thermostat is reading high engine temperature. Fan will keep going until temps lower down. This happens even with key out of ignition. However, might want to make sure the thermostat is working properly. I've had the radiator fan nick the wire and cause bad thermostat readings. Required replacing the thermostat and front radiator fan.