i have a 2007 ml350 and a couple days ago start to make a loud sound coming from the power steering pump … does it for a few minutes then stop … need some answers plz

Asked by Feb 25, 2015 at 09:25 AM about the 2007 Mercedes-Benz M-Class ML350

Question type: Maintenance & Repair

6 Answers


just to cover the basics you checked the fluid right? and is the sound a squeal or is it a whine?

sound more like a squeal … is it bad ?


no you may just need a new serpentine belt. i would start with that

awsome I'll do that then … thank you very much


no problem at all. i hope it works out for you. if you have multiple belts and changing that one doesn't help try changing the others as well. its your cheapest option and should be your problem. belts start to squeal when they start to wear out and if left unattended they break leaving you without power steering, an alternator to charge your battery, or a water pump to cool your engine. 2/3 will leave you stranded


I had the EXACT problem with my 2007 SL. I was sure it was the power steering pump or belt. Turned out it was an air pump or valve that connects to it. Sorry, I can't find the work order to tell you the exact item to look at. I took it to Mercedes in case it was a simple problem that they would recognize right away rather than risk a lot of labor and unnecessary parts charges at a local mechanic. That turned out to be the right choice.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions


Looking for a Used M-Class in your area?

CarGurus has 6,015 nationwide M-Class listings starting at $2,874.


Search Mercedes-Benz M-Class Questions

Mercedes-Benz M-Class Experts

#1 jihadghazali
Reputation 1,030
#2 wellness
Reputation 790
#3 stardust
Reputation 520
View All

Related Models For Sale

Used Mercedes-Benz GL-Class"
305 Great Deals out of 4,366 listings starting at $7,999
Used BMW X5"
550 Great Deals out of 15,642 listings starting at $1,995
Used Mercedes-Benz E-Class"
763 Great Deals out of 22,808 listings starting at $1,850
Used Mercedes-Benz C-Class"
884 Great Deals out of 32,206 listings starting at $1,200
Used Mercedes-Benz S-Class"
175 Great Deals out of 6,641 listings starting at $1,899
Used Lexus RX 350"
567 Great Deals out of 18,774 listings starting at $5,990
Used Porsche Cayenne"
89 Great Deals out of 5,262 listings starting at $4,200
Used Acura MDX"
499 Great Deals out of 15,607 listings starting at $1,999
Used Mercedes-Benz G-Class"
11 Great Deals out of 801 listings starting at $24,995
Used Audi Q7"
122 Great Deals out of 4,274 listings starting at $6,995
Used Jeep Grand Cherokee"
1,214 Great Deals out of 73,883 listings starting at $1,593
Used Land Rover Range Rover Sport"
185 Great Deals out of 6,238 listings starting at $7,995

Used Cars For Sale

2015 Mercedes-Benz M-Class ML350 For Sale
8 Great Deals out of 166 listings starting at $31,500
2014 Mercedes-Benz M-Class ML350 For Sale
15 Great Deals out of 351 listings starting at $24,977
2013 Mercedes-Benz M-Class ML350 For Sale
7 Great Deals out of 126 listings starting at $23,900
2011 Mercedes-Benz M-Class ML350 For Sale
4 Great Deals out of 94 listings starting at $14,950