Question about 2002 Mercedes-Benz C-Class

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My C320 won't start. I thought the battery was dead. When I hooked the battery charger to it, it said the battrey was already charged. When I turn the key I only get a click.

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  • themanghams Jun 20, 2009

    Does this car have a solonoid switch seperate from the starter?



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This is generally caused by either a dead battery or a bad starter, as you have already checked battery so you should check these steps to make sure it's not an operator error.

  1. If car is automatic, check that transmission is in park and your foot is on brake.
  2. If car is stick shift, check that clutch pedal is fully depressed. Check neutral safety switch behind clutch pedal (small button that prevents engine from starting when transmission is in gear). If clutch pedal doesn't fully engage neutral safety switch, engine will not crank.
  3. Check that driver's seat belt is fastened (some cars will not start with seat belt unlatched).
  4. Make sure you've properly inserted key. Turn it to On position and give steering wheel quarter turn in either direction.
  5. Make sure alarm system is not activated, preventing car from starting (see owner's manual for car alarm).
  6. Check for dead battery. Test wipers, radio, headlights and heater fan. If all work normally, battery is probably charged and you may have bad starter. If they don't work, move on to next step.
  7. Check connection at battery and at starter (see steps 8 and 9). If battery connections are good and all accessories work, consider jumpstarting car (see How to Start a Car With Jumper Cables).
  8. Open hood and check battery connections at terminals. If either connector is loose enough to move, problem may be bad connection. Jiggle or tighten cable end. Corrosion at battery terminal will also prevent car from starting. Clean terminal with wire brush or water and rag and tighten battery cable connectors.
  9. Check connection at starter. Follow battery cable from positive battery terminal to starter. Make sure connection isn't loose. Lightly tap outside of starter with hammer. Sometimes this will free stuck components inside so car can start.
  10. Consider push-starting car (manual transmission only) if battery or starter is at fault (see How to Start a Stalled Car).
Please do accept the solution and revert for further assistance.


Posted on Jun 20, 2009

  • Rylee Smith
    Rylee Smith Jun 20, 2009

    If you are talking about the upper dash vent solenoid (little electric device that opens or closes the vents inside the dash, since they are electronically controlled) then yes it does have a solenoid, but I would still believe its the starter however you can get it checked from authorised repair center.

    Please do accept the solution and revert for further assistance.




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key off and out,diconnect negitive side of battrey then postive.clean terimals,charge battrey,connect postive cable (with key off)connect negitive.and start.
your dead battrey is taking up a big load on system,so when you boost it the dead battrey is taking it all the starter is geeting vey little.thats the clicking.
if you dont have a charger dicconect both terminals the same way again,put the jumper cables on the dead battrey.let it charge battrey for 10 15 mins .the longer the better.remover jumpers.
with key off and out conected battrey terminals.connect jumper cables and start.
let me know if it start or not hopefully the key hasnt lost its coding.

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I had the same problem with mine. Disconnect the power seat moduale underneath the seats. Recharge the battery and shouldn't happen again. Providing the battery hasn't worn down past the charging point. Worst case you will have to get a new battery. If you google C320 battery drains you will see hundreds of other peoples posts.

Good Luck

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