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S350 circulation pump

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by Steve Taxi, Jan 12, 2018.

  1. Steve Taxi

    Steve Taxi Senior Member

    Messages:
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    Joined:
    Jan 29, 2005
    Location:
    Malvern, Worcs.
    Your Mercedes:
    W211, W221
    Hope someone can help with this, 2012 S350 bluetec, the electric circulation pump is noisy I can hear it inside the car when idling and when the engine is off with stop/start, it is located near the battery on the bulkhead so it can be heard inside the car, my question is do I really need it as it's main function is to circulate coolant when the engine is off and you press the rest button, can I just unplug it or will this throw up a fault on the dash?
     
  2. OP
    Steve Taxi

    Steve Taxi Senior Member

    Messages:
    226
    Likes Received:
    4
    Joined:
    Jan 29, 2005
    Location:
    Malvern, Worcs.
    Your Mercedes:
    W211, W221
    answered it myself, no problem disconnected
     

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