ineedhelp

can someone please tell me where the AC blower fan is located in 1990, 190 E. and how to replace it.Blower does not come on when i engage the blower switch.i am wondering if it could be the blower relay. has anyone had this problem? any help would be apreciated.Thanks!

MTI

It helps to rule out the cheapest, easiest parts before moving forward. That said, I suppose you've checked the fuse (No. 1, blue, 25A) that controls the climate control system and found that it's working. Visually inspecting the fuse is not reliable, use an ohmmeter or replace with a known good.

Then there's the switch unit on the center console, with the speed selection. That could have died.

The blower motor and squirel cage fans are located under the hood. You'll need to put the hood completely vertical to get access. The monowiper has to be removed to gain access as well. Beneath the center of the windshield is the black plastic cover for the blower motor assembly, held in place with metal straps. It's a tough spot to get to, I would suggest using a stepstool to reach over.

ineedhelp

Thanks MTI,I'm going to try that,I've already replaced the blower switch and checked the fuse,but still not working so I'm going to take the blower motor out and test it to see if that would fix the problem.I'll post the result.
Thanks again.

ineedhelp

I still can't find where the ac blower fan is in my 1990 190e 2.6.I tried MTI's
suggestion and looked under the windshield where the wiper motor is but it wasn't there.Does anyone know the exact location of it?Any help is appreciated.

MTI

ineedhelp

Thanks MTI for the picture.It helped a lot.just one more question how do you get the wiper off?I can't get the cover off to get to the bolt that's holding it.
Any idea?
Thanks.

ineedhelp

HI MTI,
I finally fiqured out the wiper and took the fan out.thanks.
Is it possible to the the fan blades out?They're very tight around the motor shaft and I'm afarid to break them,any suggestion?The difference in price is outragous.Any help would be appreciated.

MTI

I think you'll need a gear puller to remove the "hamster wheels" from the motor shaft.

ineedhelp

Thanks MTI I finally replaced the blower fan and it's working fine.Now I need to recharge the system but I can only find one of the connections which is on top close to the right fender.Aren't there suppose to be a high side and low side?Where's the location of the other one and which one is the high and which one the low?Any help would be appreciated.