W212 2012 Heater/Interior Fan Does not Work
12-02-2023, 05:47 PM
#26
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MY'14 W212 M276 3.5NA @55kMi
as tight as a clam
My new car Bosch interior fan was already squeaking dry at 10kMi... So I took it appart to realize the sleeve bearings were also way too tight.
I lubed both top and bottom bearings with couple drops of engine oil.
Now 40kMi later it spins normally even at low rpm.
I lubed both top and bottom bearings with couple drops of engine oil.
Now 40kMi later it spins normally even at low rpm.
The following users liked this post:
Rickman30 (12-03-2023)
02-08-2024, 09:37 AM
#27
My new car Bosch interior fan was already squeaking dry at 10kMi... So I took it appart to realize the sleeve bearings were also way too tight.
I lubed both top and bottom bearings with couple drops of engine oil.
Now 40kMi later it spins normally even at low rpm.
I lubed both top and bottom bearings with couple drops of engine oil.
Now 40kMi later it spins normally even at low rpm.
if anyone was curious it was the blower motor resistor, I replaced it in 5 min , luckily it worked
02-10-2024, 03:28 PM
#28
You did good. The blower motor went out on my W211 2008 E350 - squeeled until it finally stopped. I went through (3) motors from on-line and local parts places before I finally ended up getting one from the dealer. The after-market were cheaper but all made noise, even the one marked "Behr" with the benz logo scratched off. The motor from the dealer was $402. All things considered with what I now know, I would have gladly paid $550 and waited in a nice warm waiting room.
02-10-2024, 03:37 PM
#29
I had this exact same problem. Manually spinning the fan made it work again!
So is this a warning that tells me I should replace that fan before it stops working for good?
I'm getting two different parts for the blower mower resistor. Both are about as expensive as the blower motor itself. Rock auto shows two very different pictures:
I still have varying fan speeds so I'm going to leave that until it fails. Just to be sure - These are just resistors that "fail open" so any issues with this regulator won't harm the motor. I don't want to damage a new motor because I should have replaced this regulator. Thoughts?
So is this a warning that tells me I should replace that fan before it stops working for good?
I'm getting two different parts for the blower mower resistor. Both are about as expensive as the blower motor itself. Rock auto shows two very different pictures:
I still have varying fan speeds so I'm going to leave that until it fails. Just to be sure - These are just resistors that "fail open" so any issues with this regulator won't harm the motor. I don't want to damage a new motor because I should have replaced this regulator. Thoughts?
