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Mercedes-Benz transmissions & drivetrains repair questions and answers

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  • MrCaracicatriz
    MrCaracicatriz - 2001 Mercedes Benz S500 - Transmissions & Drivetrains - 5/31/2014
    Why does my car hesitate or stall when I first step on the gas after backing out of my driveway?
    It almost jerks when I press the gas unless I do it very slowly and carefully. What's wrong?
     
    • Jimm
      5/31/2014 Jimm
      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • MrCaracicatriz
    MrCaracicatriz - 2001 Mercedes Benz S500 - Transmissions & Drivetrains - 5/29/2014
    Why does my car hesitate or stall when I first step on the gas after backing out of my driveway?
    It almost jerks when I press the gas unless I do it very slowly and carefully. What's wrong?
     
    0 answer
  • helio vargas
    helio vargas - 1994 Mercedes Benz E420 - Transmissions & Drivetrains - 5/8/2014
    When I start in D the second enter until 3500 in the tacometer
    after that all is normal
     
    • GT500Knights
      5/8/2014 GT500Knights
      I'm sorry I don't quite understand your question. Can you reword/be more clear in what you're trying to ask?
  • brian
    brian - 2007 Mercedes Benz E350 - Transmissions & Drivetrains - 4/23/2014
    I have a wine in my engine but its not a belt because I. inspected the belt. Its low pitch wine. Power steering?
    I think its not a pump but more like power train. It drives fine but lacks sponsivness, I really am baffled because its a weird low wine
     
    0 answer
  • brian
    brian - 2007 Mercedes Benz E350 - Transmissions & Drivetrains - 4/23/2014
    I have a wine in my engine but its not a belt because I. inspected the belt. Its low pitch wine. Power steering?
    I think its not a pump but more like power train. It drives fine but lacks sponsivness, I really am baffled because its a weird low wine
     
    0 answer
  • Muscle
    Muscle - 2001 Mercedes Benz C240 - Transmissions & Drivetrains - 4/6/2014
    My car is a automatic and the engine is reving out and not changing gear.and it is giving a ticking sound
     
  • cv
    cv - 2007 Mercedes Benz SL550 - Transmissions & Drivetrains - 4/4/2014
    How to reset the oil indicator reminder
    how to reset the oil life indicator reminder…
     
    • HouseCallAuto
      4/4/2014 HouseCallAuto
      The procedure is detailed in your owners manual. Different procedures for with and without keyless go.
  • MBny
    MBny - 2003 Mercedes Benz C230 - Transmissions & Drivetrains - 3/26/2014
    Is my car safe to drive?
    On Sunday 3/23 I got a P0730 incorrect gear ratio code. My car was kind of cold and I was going up a slight hill before it came on. I cleared it out and have driven since then and to date, 3/26, the code hasn't shown up again. I need to go on a 115 mile trip (there ...
     
    • HouseCallAuto
      3/26/2014 HouseCallAuto
      You want to read this article here >> http://www.justanswer.com/.../...chased-07-mb.html

      Also I would like to mention. You purchased a code reader at my suggestion and you know how that code reader works now. If you want to take that a step further, I suggest you look for the $500 Chinese copy of the Mercedes Benz Star Tester (aliexpress.com for example) and then you would be able to check your transmission control module for add'l codes which you cannot do now. I recently bought an 07 SL550 and I will be buying one of these units for my own use so I do not ever have to be forced to pay the full retail Mercedes Benz retail repair bills that they hand out daily to everyone. At least if you have the full function scan tool you will have a chance to mitigate your repair costs through knowledge of what the faults are and what the data sensors say. Regular scanners cannot read this stuff, only the factory scan tool can and I hear that these Chinese made copies $500 Mercedes Benz Star tester can do the job same as the genuine one they use at MB. The real one probably costs 5K or more.
      HouseCallAuto
      3/27/2014 MBny
      Thanks again, my friend. I will look into it.
  • AutoMD Member
    AutoMD Member - 2001 Mercedes Benz SLK320 - Transmissions & Drivetrains - 3/14/2014
    6 speed manual transmission won't shift into 4th gear. All other gears work great.
    The car has a new flywheel, pilot bearing, clutch. It was working fine one day, and the next, will not slip into fourth. Everything else in the transmission seems fine. Could it be a linkage problem or internal....I can live without 4th gear in lieu of a trans overhaul.
     
    0 answer
  • johnnyrod
    johnnyrod - 2002 Mercedes Benz S500 - Transmissions & Drivetrains - 3/14/2014
    What type of transmission fluid
    I would like to know what type of transmission fluid I can use on this vehicle can I get after market instead of the dealer
     
    • HouseCallAuto
      3/14/2014 HouseCallAuto
      MB fluid only or you are at risk for unknown bad stuff happening on a $8000.00 tranny
  • AutoMD Member
    AutoMD Member - 1991 Mercedes Benz 300E - Transmissions & Drivetrains - 3/3/2014
    Is there a way to bypass the air conditioning pulley when installing the serpentine belt.
    The air condition pulley has seized which caused the serpentine belt to snap. I was wondering if the belt can still be replaced with out using that pulley.
     
    • Jimm
      3/3/2014 Jimm
      Most likely - take the old belt to the local auto parts store to compare with a new belt of shorter length to exclude the a/c compressor from the routing path.
  • AutoMD Member
    AutoMD Member - 2006 Mercedes Benz E350 - Transmissions & Drivetrains - 2/20/2014
    What could be wrong? my gear is not selecting. seems its stuck in neutral.
    The transmission developed a problem so i had it change with one that had 15k miles on it.I bought it for $2200. After fixing and programming the transmission, it worked but started stalling again. The mechanic said the valve body should be replaced with the one ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2006 Mercedes Benz E350 - Transmissions & Drivetrains - 2/20/2014
    Gear will not engage at all.it stays constantly in neutral. i got the obd code P0705 . what do i do?
    The original transmission in the car got bad and it was changed..i bought it for $2200, it has approx. 15k miles on it. Later the mech discovered that the valve body of the new one was 'dirty' or bad, and swapped it with the valve body of the old one. The car moved ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2000 Mercedes Benz E320 - Transmissions & Drivetrains - 2/13/2014
    Why won't my car go into gear?
    After I washed my car at an automatic car wash it would not go into gear. It was very cold out and thought maybe somehting froze under the car or a sensor. I opened the panel as instructed in the owners manual and was able to manually shift but now need to fix it. ...
     
    • Jimm
      2/13/2014 Jimm
      Possibly a frozen neutral safety switch / range selector on the transmission - perhaps some moisture has entered to cause the problem?
      When you state the car will not go into gear - does this mean you cannot manually shift out of Park, or into any other gear position - or does this mean the transmission does not shift automatically in Drive for the different speeds?
  • banyat somwong
    banyat somwong - 1987 Mercedes Benz 560SEC - Transmissions & Drivetrains - 2/13/2014
    I have problem with transmission. the car jerked or jumped when i put in forwrd or reverse gear.
    Fluid was low but after add to proper level it did not improve the proplem.
     
    • Shane350zzz
      2/8/2014 Shane350zzz
      Check your transmission fluid level, hopefully it is low bc thats the cheapest fix. Or the torque converter maybe going out I would try putting Lucas non-slip In the transmission. Works pretty good
    • John's Auto Repair
      2/13/2014 John's Auto Repair
      You could possibly have a broken transmission or engine mount.