Blower working intermittently - MBWorld.org Forums

Dec 26, 2017 | 09:07 AM

MattsE350

Thread Starter

Newbie

Joined: Dec 2017

Posts: 1

Likes: 0

2010 Mercedes E350 4matic

Blower working intermittently

Hello,

I am having issues with my blower motor working intermittently. It usually takes a hard bump to get it to start working. Does anyone know of any easy fixes I can try before replacing the entire motor? I have looked around for a fuse panel diagram and relay diagram for my car and can’t find anything. I was going to check the relay first to see if it is going bad and then I was going to try the regulator/resistor. If anyone can give me any advice I would be greatly appreciative. Thank you.

Matt
2010 E350 4matic W212

Dec 26, 2017 | 09:19 AM

s140s

Member

Joined: Feb 2016

Posts: 86

Likes: 24

From: Palatine, IL

2013 E350 4Matic

If hitting a bump only starts its then most likely the brushes are worn out. You will probably need new blower. ~$140

https://www.fcpeuro.com/products/mer...tor-2128200708

Attached Files

AC blower (1).pdf (219.9 KB, 251 views)

Dec 26, 2017 | 10:51 AM

Mud

MBWorld Fanatic!

Joined: Oct 2014

Posts: 1,053

Likes: 347

2011 E-350 4Matic Sport

Its also possible the connector is not making complete contact. Seems over time either the contacts loosen or have a bit of corrosion buildup. Similar has happened to several here including me with back up camera. Sometimes unplugging and replugging connector a few times can clean off the terminals and you're back in business. At least you can give it a try to see if it helps.

Dec 26, 2017 | 06:00 PM

djdirty76

Junior Member

Joined: Dec 2009

Posts: 27

Likes: 7

2014 e550

Hi. I had same exact issue like 3 weeks ago. Check connector first. For me it was the loose connector. It wasn't plugged inn properly. I pushed it inn and so far so good..