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Mercedes-Benz steering & suspension repair questions and answers

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  • karen
    karen - 2002 Mercedes Benz C230 - Steering & Suspension - 1/11/2015
    Why have I lost my steering
    all of a sudden I can not turn the wheel
     
    0 answer
  • karen
    karen - 2002 Mercedes Benz C230 - Steering & Suspension - 1/11/2015
    I have no steering. while driving it I thought it died because I lost steering but it didn't.
    is it electrical or under the hood repaoirs
     
    0 answer
  • Carl
    Carl - 1994 Mercedes Benz E320 - Steering & Suspension - 10/28/2014
    In fixing very poor suspension, can I use cheaper SHOCKS, or am I stuck with ACCUMULATORS
    My 1994 Mercedes-Benz E-320 Wagon suffers from rapid, long "Jounces" with every road dip. M-B mechanic I use says I need "ACCUMULATORS"? for $800! Can't I get and FIT adequate SHOCKS or STRUTS and SPRINGS? Please advise me. I'm REALLY CONFUSED and $$$ is a factor. ...
     
    • Jimm
      10/9/2014 Jimm
      There are less expensive conversion kits available for the dreaded / problem-prone self-leveling suspension systems.
      Try these vendors: www.strutmasters.com/Mercedes-E-Class-E320-Suspension-Parts-s/126.htm, www.slsconversion.com, www.peachparts.com, www.americanairsuspension.com/Mercedes-Benz-Suspension-All-Mercedes-s/1842.htm - to list only a few. These vendor list the entire kit; springs and shocks / struts for all four wheels from around $1300.00.

      The hydraulic struts partially support the weight of the car in addition to supplying damping. You would need to replace the springs with substantially higher rate springs to do the job right. Otherwise the tail end of the wagon will ride low, handling and tire life will be compromised, and of course that 1150 lb. load rating is gone.
    • 2000MercedesE320Wagon-eer
      Ok, check your 'hydraulic shocks' for leaking fluid. \

      If they are truly leaking & require replacement, you will see obvious seeping or even dripping hydraulic oil from the shock bodies themselves. IF they're dry, no signs of leaking (tiny bit of seeping is perhaps ok), then you have ruptured accumulators. These can be had on Amazon and elsewhere for only $ 100 ea, and you can easily find DIY discussions on the MB forums where techs tell exactly how to replace them. What happens is the rubber diaphram inside the round plastic accumulator (looks like a black plastic sphere, mounted on car undercarriage, next to shocks) breaks, and allows the hydraulic fluid to fill the entire sphere, instead of having the sphere be 1/2 oil, 1/2 nitrogen. Once these are replaced, your nice ride will return. BTW, I would only do the Strutmasters.com conversion to the plain old upgrade springs & shocks if my very expensive hydraulic MB shocks themselves were leaking & I didn't need an automatic adjusting rear suspension. I suspect that 'Sport Oreinted' drivers would prefer the tighter and harder feel that the Strutmasters conversion would provide. ( I used to race cars.....) I'm still forming my opinion, as we've just bought our pristine 2000 E320 wagon & have only had it 1 week. We are a family of 7 & travel lots & do bike racing, so we are going to load this car pretty heavy occasionally. It will be interesting to see if the SLS (self leveling suspension) will do the job, or if it will develop issues. Already I'd call the ride, "idolated, sedate but well controlled", but not exactly race or high performance inspiring. I'm not a fan of overt complexity, but am willing to try the SLS under our conditions. If it doesn't measure up to our load, or starts to fail, I will very quickly order & install the Strutmasters.com conversion kit. For my year, 2000, I'm referring to this kit:

      http://www.strutmasters.com/.../mh1rb.htm

      I don't see a kit for your year, 1994, but I would give them a call, they probably offer one.

      Best wishes on fixing your issue.

      David in Texas
  • john
    john - 1986 Mercedes Benz 420SEL - Steering & Suspension - 10/18/2014
    Steering wheel is in lock position and key will not turn.
    car has not been started in a year.have charged battery and is getting power.
     
    • benz guy 888
      10/18/2014 benz guy 888
      try to gently rock(left and right) the steering wheel while turning the key...it should allow the key to turn.
  • AutoMD Member
    AutoMD Member - 1997 Mercedes Benz E320 - Steering & Suspension - 10/18/2014
    I by mistake put a little power steering fluid where the brake fluid goes, how do i flush it out?
    for the last month or so i have been putting power steering fluid in and it comes back on the ground, i believe there is a hole somewhere, but my wife accidently put a little power steering fluid where the brake fluid goes, luckily it did not go down, can i manualy ...
     
    • benz guy 888
      10/18/2014 benz guy 888
      bring the car to a trusted mechanic...you may have to change a line for the power steering if there is a leak. next ask the mechanic to bleed the brake lines just to be sure that all power steering fluid are removed in the brake lines. if you know how to bleed the brake lines you can do it yourself. just make sure there are no air in the brake lines after bleeding them.
  • TOMSOFTEE
    TOMSOFTEE - 1994 Mercedes Benz S500 - Steering & Suspension - 10/11/2014
    MY ABS & STEERING DROP OUT WHEN I MOVE THE STEERING WHEEL.
    POLARITY HAD BEEN REVERSED ENUF TO BLOW THE PANEL FUSE. DAYS LATER THE ABS & SRS IDIOT LIGHTS CAME ON AS THE STEERING GOT STIFF & THE ANTI-LOCK BRAKES WENT DEAD.
     
    0 answer
  • TOMSOFTEE
    TOMSOFTEE - 1994 Mercedes Benz S500 - Steering & Suspension - 10/8/2014
    WHAT IS MAKING MY POWER STEERING & MY ABS BRAKE SYSTEM DROP OUT (w/ idiot lights)
    INITIAL PROBLEM STARTED WITH TURNING WHEEL TO LEFT. THEN BOTH TURNS, THEN FROM HARD BRAKE STANDING STILL. TURNING OFF IGNITION RESETS TO NORMAL ALL NEW SHOCKS & SPRINGS NOW. -NON-HYDRAULIC.
     
    0 answer
  • Boopster
    Boopster - 1999 Mercedes Benz E320 - Steering & Suspension - 9/17/2014
    What tools are needed to replace the front right lower control arm on a 1999 Mercedes Benz E320?
    Control arm snapped off.
     
    0 answer
  • Carl
    Carl - 1994 Mercedes Benz E320 - Steering & Suspension - 8/6/2014
    Can I repair my L/F "Upper Control Arm"?
    In a collision with an on-coming car from the left-front, my L/F tire (wheel) was directly hit-- moving it almost to the wheel well. When any bumps or dips in the road are encountered, the sharp outer edge of the wheel well scrapes the tires outside tread/ ...
     
    • CTB1053
      8/6/2014 CTB1053
      I would never try to repair a bent control arm. They weren't made to bend and bending it back is asking for it to break. Can you replace it, yes, depending on your mechanical ability and tools. There are usually only three or 5 bolts holding a control arm on. But it's likely the strut and steering knuckle would need removed or unattached as well. There are a number of online source to explain how to do it or you can go to your local library and see if they have a Chilton's or Haynes repair manual you can look at. The parts can be found at scrap yards but check online (like Ebay) it may not be as expensive as you think just to get new.
  • deans
    deans - 2000 Mercedes Benz S430 - Steering & Suspension - 5/3/2014
    I replaced both front air suspension on Mercedes s430 after replacing .power steering hard to turn,are they related.
    hard steering.
     
    0 answer
  • deans
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2000 Mercedes Benz S430 - Steering & Suspension - 2/12/2014
    2000 Mercedes-Benz S430 question regarding failure of Airmatic Pump, Air suspension shocks and or relay.
    Thank your for reading my concern, and question. This is what I know so far: I purchased this card about (3) months ago and the car would lose air pressure in the front if i did not drive the car every day. I would let it sit for (3-4) days, and the car would be ...
     
    • Jimm
      2/12/2014 Jimm
      Most likely - and given your description - it sounds like the air pump for the suspension system is failed. Several possibilities; leaking air spring, faulty air supply hose, leaking air suspension pump.

      Try these on-line sources, www.arnottindustries.com, wwwpartsgeek.com, www.rockauto.com, www.discountautoparts.com, www.autopartswarehouse.com, www.strutmasters.com - to list only a few possibilities. They (Arnott Industries and Strut Masters) list the the coil spring conversion kit from around $1695.00 for your vehicle.
      Jimm
      2/12/2014 AutoMD Member
      Thanks for your reply
  • AutoMD Member
    AutoMD Member - 2012 Mercedes Benz C63 AMG - Steering & Suspension - 1/13/2014
    Steering response feels loose over 60 mph.
    On the highway, at speeds over 60 mph, the steering feels "loose". When traveling on a straight line at those speeds, if I shake the wheel a bit side to side there almost seems to be a delay in the response and when the car does move it does so with an almost ...
     
    • Jimm
      1/11/2014 Jimm
      May be related to the design of the 'speed sensitive steering' - and I'll bet the dealership will state this is a normal condition. Aside from the items listed below, I'd recommend to drive another C63 just for compariosn sake.

      Several possibilities;

      1) tie-rod ends are worn (which will definately create a loose feeling plus the car would wander a bit on a unevenly surfaced road)

      2) Worn out control arm bush (also creates more slack)

      3) Worn out front shock absorber mountings (they are rubber with bearings)

      Once you change some or all of the above, depending on what's worn, the car should have some sharp steering.
    • HouseCallAuto
      1/11/2014 HouseCallAuto
      I can assure you that you do not have worn out front end parts. This car is brand new and has not had enough time to wear out anything yet. You mention this floaty feel. Are you comparing this to a time when the car did not do this or is this car just recently acquired and this is what you believe to be incorrect handling? Your car may have ABC button (Active Body Control) with a changed setting. Confirm that your tires are not very low on air due to the drop in temperature that the USA is experiencing.
      HouseCallAuto
      1/13/2014 AutoMD Member
      It started two monthts ago when I hit a pothole. A 4 wheel alignment was done that made it better, but not perfect. A couple of weeks after that, the steering wheel was replaced due to peeling and all of a sudden the steering was perfect. Now its back to the loose feeling. I constantly check the tire pressure to make sure its balanced.
    • HouseCallAuto
      1/13/2014 HouseCallAuto
      Are there any fault messages posting at the message center?
      HouseCallAuto
      1/14/2014 AutoMD Member
      No fault messages.
  • AutoMD Member
    AutoMD Member - 2012 Mercedes Benz C63 AMG - Steering & Suspension - 12/24/2013
    What could cause loose feeling in my steering.
    On the highway, at speeds over 60 mph, the steering feels "loose". When traveling on a straight line at those speeds, if I shake the wheel a bit side to side there almost seems to be a delay in the response and when the car does move it does so with an almost ...
     
    • HouseCallAuto
      12/24/2013 HouseCallAuto
      Maybe you changed a setting on the suspension button that you were not used to. My MB has ABC (active body control) and the settings change the steering and the ride noticeably. Aside from that this is going to need a MB tech only, it is not general knowledge known by 99% of techs. Of course I could simply say make sure your tire pressures are all correct but that is not likely the cause so I didn't say it. This is a new car and diagnostics has to be with a MB only star tester.
  • AutoMD Member
    AutoMD Member - 2005 Mercedes Benz C320 - Steering & Suspension - 12/9/2013
    Why does my car squeek when i hit a bump
    50,000 miles squeek noise comes from the front of the vehicle when i hit a bump in the road
     
    • Jimm
      12/9/2013 Jimm
      Several possibilities; worn / faulty sway arm bushing or end link bushing, faulty / worn strut bushing, faulty / worn suspension bushing. Use the 'How-to-Guides' feature on the AutoMD website for the specific steps to diagnose the front suspension for adverse noises and conditions.