E-Class (W211) 2003-2009

Thud when braking and accelerating

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 05-22-2018, 08:27 PM
  #1  
Member
Thread Starter
 
Onyxthecat's Avatar
 
Join Date: Apr 2018
Location: Bayside, NY
Posts: 186
Received 14 Likes on 13 Posts
06 E500 4Matic Wagon
Thud when braking and accelerating

I've been noticing a decent thud feeling in the car when I brake or accelerate. Like the front end is shifting forward or something. I can feel weight of wither the front or rear moving for sure. I just replaced my front air strut with a new unit. I took apart the necessary parts to get the strut in and out and everything was tight. I replaced both sets of front lug nuts while I was at it. Brakes also look fine with plenty of life on the pads and rotors. I drove the car after and no thud. Now it's back so I'm not sure what it is. I thought maybe it was a broken engine of trans mount. I know that my front lower and upper ball joints are torn but they were not loose. I also know the day I drove the car home to NY from OK , both CV axles in the front were replaced. Maybe they didn't tighten something while doing the install? I didn't have a single problem driving the car for 1400 miles.
Old 05-22-2018, 10:14 PM
  #2  
MBWorld Fanatic!
 
rapidoxidation's Avatar
 
Join Date: Jan 2016
Location: In the Shadow of the Tetons
Posts: 2,180
Received 660 Likes on 477 Posts
2013 ML350 Bluetec
Double check the ball joints. Lift the front wheel, try to wiggle the tire vertically and horizontally while paying close attention to the ball joints. Fair chance you'll see some play in the lowers.
Old 05-25-2018, 05:43 PM
  #3  
Member
Thread Starter
 
Onyxthecat's Avatar
 
Join Date: Apr 2018
Location: Bayside, NY
Posts: 186
Received 14 Likes on 13 Posts
06 E500 4Matic Wagon
Will do, I am ordering both lowers and both uppers asap.
Old 06-03-2018, 12:31 AM
  #4  
Junior Member
 
SouthSideBenz's Avatar
 
Join Date: Feb 2017
Location: Maui, HI
Posts: 19
Received 2 Likes on 2 Posts
2004 E500, 1997 C230
yup, had that happen to me after a bough a cheap control arm on rock auto. I heard a distinct thud sound after braking at high speeds. Then a week later ended up separating the ball joint from the control arm as it was held together very cheaply and poorly. Mind you this was on the highway as im slowing to a traffic light.
Old 06-03-2018, 08:58 AM
  #5  
Member
Thread Starter
 
Onyxthecat's Avatar
 
Join Date: Apr 2018
Location: Bayside, NY
Posts: 186
Received 14 Likes on 13 Posts
06 E500 4Matic Wagon
My new Lemforder lowers came in from FCP Euro. Pretty nice parts. I'll update after the install.
Old 06-04-2018, 01:30 AM
  #6  
Super Member
 
95viper's Avatar
 
Join Date: Apr 2013
Posts: 854
Likes: 0
Received 53 Likes on 43 Posts
2007 cls550
Any chance that you have camber/caster bolts installed? I heard of someone installing them and only one of the two notches were lined up. I imagine that this scenario could make a noise.
Old 06-04-2018, 09:08 PM
  #7  
Member
Thread Starter
 
Onyxthecat's Avatar
 
Join Date: Apr 2018
Location: Bayside, NY
Posts: 186
Received 14 Likes on 13 Posts
06 E500 4Matic Wagon
I don't know. I'll post pics when I do the tear down. I'm doing lower ball joints, upper control arms, motor mounts and front brakes.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Thud when braking and accelerating



All times are GMT -4. The time now is 10:36 AM.