How to Reset Your W210 ECU

Mercedes Benz W210 ECUDo you know that you can breathe life into your W210s again, for free? Try this out on your car now to give it a shot.

  1. Turn the ignition key to the “ON” (not start) position
  2. Press the gas pedal to the floor and hold for five seconds
  3. Turn the ignition key to the “OFF” position (do not remove the key), then release the gas pedal
  4. Wait for at least two minutes for your ECU (Electronic Control Unit) to reset

After you have performed the above, start your car and drive around for a bit. You will notice any or all of the following:

  • Less effort need to get your car on the move (extra power)
  • Smoother upshift and downshift
  • Better fuel consumption

How is that possible? The above procedure resets or erases the ECU’s memory on the adaptive transmission and throttle settings. When you drive over a period of time, your car remembers your driving style and adapts to it. When you perform the reset procedures, that’s akin to breathing new life to it.

Have a go and let me know if this works for you.

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  1. Esie Mulafer said,

    April 24, 2008 @ 9:51 am

    Hi! I have a 1998 e320 , my engine light comes on and it says check electronics, I think it is the ECU, do you have the part # for the ECU


  2. Roberto Cavo said,

    March 13, 2009 @ 5:17 am

    hi, I have a MB E320 W210, changed the unit to him of the motor and they mounted the 1121532279 to him and vechiculo worked, my says concesionarioa that I must change it by the 00265456532, since he is the one that corresponds to him to the car, I ask, it is possible to modify to him I number of serial to the Ecu 1121532279 and putting the serial one to him of my car?

  3. vanos batam said,

    April 3, 2010 @ 9:50 pm

    Send me dump of ecu.I will send new file after restet and renew

  4. Joseph said,

    October 25, 2010 @ 10:35 pm

    I just changed my W210 faulty cluster (fuel level stuck at max regardless of the amount in the fuel tank) to a new one, all meters work fine, however the Cummulative mileage is blinking and does not record any mileage, please advise how to solve the problem.

  5. vanos batam said,

    June 8, 2011 @ 8:29 pm

    You need coding your instrumencluster,

  6. Chuck said,

    June 25, 2011 @ 9:15 am

    Hmm, I wonder if this works on an E300D (1999/W210)?

  7. DRISS said,

    May 13, 2012 @ 4:56 pm

    is that procedure works for W203 ?

  8. gearbox ecu reset - MBClub UK - Bringing together Mercedes Enthusiasts said,

    March 6, 2013 @ 11:26 pm

    […] I've found this works on mine How to Reset Your W210 ECU […]

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