What is the possibility of the upper control arm breaking while getting your front brakes and rotors done?

Asked by Jul 15, 2014 at 03:53 PM about the 2003 Mercedes-Benz S-Class S 500

Question type: Maintenance & Repair

Passenger front upper control arm broke when they put it up on the rack to do the front brakes and rotors.  They said it was worn and that is why it broke.

4 Answers

90,815

That sounds about right, chances are that it was fractured before they started and when the stress changed when they started to raise the vehicle it snapped. I've seen this on other rigs, it is usually caused by a impact from a curb or a parking bumper, even hitting a deep pothole.

2 out of 2 people think this is helpful.

Thank you for your quick response!

1,100

thats BS shoes, they are made to withstand road force, and what extra force would be exerted by lifting the car at the lift points? And if it was fractured, it would have failed from the road force, and steering would have gone right out the window.......Probably the kid at the local brake shop

90,815

Sorry Doc but have you stressed a newer upper control arm lately, it is surprising how much little force will break it.

Your Answer

Add photo

Related Questions

S-Class

Looking for a Used S-Class in your area?

CarGurus has 6,582 nationwide S-Class listings starting at $1,200.

ZIP:

Search Mercedes-Benz S-Class Questions

Mercedes-Benz S-Class Experts

#1 Tom Demyan
Tom Demyan
Reputation 740
#2 Michael Kane
Michael Kane
Reputation 540
#3 lightGear
lightGear
Reputation 420
View All

Related Models For Sale

Used Mercedes-Benz E-Class
379 Great Deals out of 21,851 listings starting at $699
Used BMW 7 Series
178 Great Deals out of 6,029 listings starting at $2,999
Used Mercedes-Benz C-Class
476 Great Deals out of 28,836 listings starting at $1,499
Used Mercedes-Benz SL-Class
45 Great Deals out of 2,990 listings starting at $2,900
Used Mercedes-Benz CL-Class
29 Great Deals out of 587 listings starting at $3,700
Used Land Rover Range Rover
112 Great Deals out of 4,573 listings starting at $4,400
Used Audi A8
23 Great Deals out of 1,989 listings starting at $3,999
Used BMW 5 Series
528 Great Deals out of 15,321 listings starting at $1,999
Used BMW 6 Series
83 Great Deals out of 3,233 listings starting at $5,399
Used Jaguar XJ-Series
64 Great Deals out of 2,604 listings starting at $1,995

Used Cars For Sale

2017 Mercedes-Benz S-Class For Sale
1,827 listings starting at $97,525
2016 Mercedes-Benz S-Class For Sale
3 Great Deals out of 176 listings starting at $69,995
2015 Mercedes-Benz S-Class For Sale
17 Great Deals out of 624 listings starting at $44,995
2014 Mercedes-Benz S-Class For Sale
17 Great Deals out of 519 listings starting at $42,995
2013 Mercedes-Benz S-Class For Sale
7 Great Deals out of 272 listings starting at $26,995