C280 making loud humming noises from the vents. - Page 2 - PeachParts Mercedes-Benz Forum

C280 Sport · #16 01-15-2009, 06:22 PM

Well I had the shop take a look at it while doing my Service A today. They found nothing. Time to take a look myself I guees. I will try Lubing it like BOBS said.

ScottyP · #17 01-15-2009, 06:36 PM

Ive also experienced this problem.

Remove the fan and vacuum the entire blower basket. Also vacuum up all debris in the blower opening. You will probably find dead leaves & little pieces of branches (from parking under trees). Vacuum the vent duct as far as you can reach throughly.

Oil the blower bearings & spin it by hand a few times. Then reinstall.

I found probably 40 dead leaves and many small little branch pieces in my fan basket. One of the small pieces of wood was causing noise when spinning a low speeds.

mpolli · #18 01-15-2009, 11:15 PM

Quote:

Originally Posted by C280 Sport

Well I had the shop take a look at it while doing my Service A today. They found nothing. Time to take a look myself I guees. I will try Lubing it like BOBS said.

Where did they look? Did they take the blower out?

C280 Sport · #19 01-18-2009, 12:02 AM

Quote:

Originally Posted by mpolli

Where did they look? Did they take the blower out?

They told me when they took it in that they drove it around and it did not make any noises. I will do it mysel because it has made that noise many times before. How do I access the Blower Motor?

ScottyP · #20 01-18-2009, 07:37 PM

Under the dash on passenger side, remove the panel (requires removal of panel screws & floor vent cover). Then by the kick panel, look up and you will see the bottom of the circular fan unit & wiring.

C280 Sport · #21 01-18-2009, 10:40 PM

Thank you. Someone also told me I can access it via the glove box? Is that true?

C280 Sport · #22 01-19-2009, 09:12 PM

I did take out the passanger side vent and the speaker and could put my hand in there and threw the air filtler and could reach the fan. I will have to access it by the glove box.