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Mercedes-Benz engine repair questions and answers

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  • mslot.ms
    mslot.ms - 1999 Mercedes Benz E320 - Engine - 2/8/2013
    My ignition gets stuck in the on position, but my car does not start,it just turns over like its trying to start
    my car cuts off completely while im driving,whats wrong how do i fix these problems
     
    0 answer
  • kazunfa
    kazunfa - 2004 Mercedes Benz C240 - Engine - 2/7/2013
    Why is the radiator fan of my car run continuously at very High speed?
    The radiator fan of my C240, 4matic, 2004 MB suddenly starts running at very high speed continuously. It initially started by fluctuating between low and high, then now almost always high from starting the car.The temperature reading at the dashboard fluctuates ...
     
    0 answer
  • Jim
     
    • HouseCallAuto
      2/6/2013 HouseCallAuto
      Mechanics do not have the ability to look up that info. Nobody does. Only way I see to answer your question partially is to stop at MB parts dept, ask then if you can see a fuel pump relay. The amps, don't know. is there some other way I can help you with your problem or does the answer to your questions matter more than anything?
  • JOSEPH R. STRICKLAND
    JOSEPH R. STRICKLAND - 2002 Mercedes Benz E320 - Engine - 2/6/2013
    HOW DO YOU DETERMINE WHICH abs WHEEL SPEED SENSOR IS BAD?
    CHWCK ENGNE LIGHT IS ON. ADVANCE AUTO TESTED AND SAID THE SPEED SENSOR IS FAULTY.
     
    • HouseCallAuto
      2/6/2013 HouseCallAuto
      You need to use a shop grade professional scan tool which typically only professional repair shops have because they cost 2000 bucks and up. Or, hunt around on the internet and find a dedicated abs code reader that states will read the codes on the abs system of your 02 MB 320. You may find one for 100 to 200 $
  • ronlove44
     
    • Jimm
      2/5/2013 Jimm
      Check the vehicle owners and maintenence manuals for the oil and filter change intervals. The oil grade is 5w20 viscosity.
  • lmedrano
    lmedrano - 1990 Mercedes Benz 300E - Engine - 2/4/2013
    Why is my car having trouble starting up and hesitating when I step on the gas?
    I just bought my car about 4 months ago and it has trouble starting up, especially when then engine is really cold. I rev the engine and when I put it on reverse it tends to just turn off. The temperature gauge also takes a while to get warm and if it is cold my car ...
     
    • Jimm
      4/3/2012 Jimm
      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this).
      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
      Jimm
      4/3/2012 lmedrano
      Thank you so much for answering my question! I'm going to check some of these problems as soon as possible! Thank you!!!
    • guttaman365
      2/4/2013 guttaman365
      My 89 mercedes 300e has the check engine light comes on and off. When its on the car sputters and doesnt want to accelerate. What can this problem be?
      guttaman365
      2/9/2013 Jimm

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this).
      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 ign
  • doc
    doc - 2005 Mercedes Benz E320 - Engine - 2/3/2013
    Loud noise from engine on startup
    Sounds like water pump or A/C compressor
     
    • Jimm
      2/3/2013 Jimm
      Need more information - what type of sound is heard? Is this a whine, clunk, scrape, grinding, squeal? Have you raised the hood to observe for yourself - with a helper starting the engine?
      Like to offer further assistance, but without more detail - it's pretty difficult to diagnose an engine loud noise problem via the internet. Post a reply using the 'Diagnose' feature on the AutoMD website for further assistance.
  • blongbliss
    blongbliss - 2007 Mercedes Benz GL450 - Engine - 2/2/2013
    How much you charge for replace camshaft cap seal?
    leaking oil of back engine
     
    • HouseCallAuto
      2/2/2013 HouseCallAuto
      Impossible to quote. There is no specific mention for this specific job in the two main labor guides used to look up labor estimates.
  • yolipali
    yolipali - 1999 Mercedes Benz E430 - Engine - 1/30/2013
    How to replace voltage regulator?
    my battery loosen power on parking, after 6-8 hours I can't start an engine. check engine is on, actually screen stop working, it's hard to see anything on it. the code reader (odbii) gives error at the test beginning.
     
    0 answer
  • dwightev
    dwightev - 1986 Mercedes Benz 190D - Engine - 1/28/2013
    My preglow indicator lamp fails to light up an the vehicle will not start
    it only starts if i put some starter fluid on a rag it starts
     
    0 answer
  • tribecmar
     
    • CVO
      1/27/2013 CVO
      Ignition switch, starter relay or shifter cut off switch ?

      First, check the battery and starter cables for their tightness or free of corrosion and physical damaged.

      See this Starting system simplified diagram. Have a help from an assistant to crank the engine, use a 12 volt light tester or a digital voltmeter, apply it to the starter control circuit.
      If there is light or 12 volts and the starter isn't cranking, then the starter is the culprit. Have the starter to bench test for free at the local auto parts stores.
      If there isn't no light or no volts, then the ignition switch is the culprit.
      Check the starter relay and position the Automatic transmission shifter in neutral.

      http://www.samarins.com/glossary/starter.html

      Note: a 3/4 charge battery is 12.50 volts
      A discharge battery is 11.75 volts.
      A battery under a cranking load and it is reading less than 7 volts,it will be a recycled battery.
  • tribecmar
     
    0 answer
  • gemisselho
    gemisselho - 2000 Mercedes Benz ML320 - Engine - 1/27/2013
    # 6 Cylinder Misfire on on 2000 Mercedes ML320
    Have had spark plugs and wires replaced, checked coil -OK- and replaced air flow meter. Still misfires. Thanks for an answer.
     
    0 answer
  • JR1795
    JR1795 - 1990 Mercedes Benz 300E - Engine - 1/25/2013
    Car started and then shut down. used jumper cables to start and car shut down when I put in Drive.
    Try to jump it a second time and it did not start.
     
    0 answer
  • happytents
    happytents - 1995 Mercedes Benz SL500 - Engine - 1/22/2013
    My car runs great until it warms up then it runs bad
    138,000 miles. I havnt done anything to the car yet. No engine lights on. The car just sounds great when cold,but when it hits its normal temp it starts running bad like missing. I think it might be fuel filter, injectors,or spark plugs. the car hasn't be tuned up ...
     
    0 answer
 
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