Extracting Coolant?

Discussion in 'Engine' started by 01alam, Apr 28, 2009.

  1. 01alam

    01alam Hardcore MB Enthusiast

    Messages:
    143
    Joined:
    Oct 3, 2008
    Hi All,

    A rather perculiar question. I have bought a fluid extractor (orignally to extract gearbox oil) - my friend wanted to change coolant in his C180, instead of doing a flush (not mechanically minded and take rather long), could I just extract the coolant and replace with the new coolant?

    Would it be bad for any parts?

    Thanks for your help.

    Angus
     
  2. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    18,745
    Joined:
    Feb 8, 2007
    Location:
    Horndean, Portsmouth, Hampshire, Southsea
    Car:
    C43 AMG with a 55 engine and supercharger, E55 AMG, S500, etc
    Better to drain it as I can't see you getting all of it out.
     
    1 person likes this.
  3. Smiley

    Smiley Hardcore MB Enthusiast

    Messages:
    2,048
    Joined:
    Jun 29, 2008
    isnt it easier just to undo the drain plug on the radiator?

    make sure the heater vents are on hot and re-fill slowly to stop air locks forming.
     
    1 person likes this.
  4. OP
    OP
    01alam

    01alam Hardcore MB Enthusiast

    Messages:
    143
    Joined:
    Oct 3, 2008
    Thanks both,

    I am not very good with any kind of fluid change, but will try!

    Thanks
    Angus
     
  5. Dieselman

    Dieselman Banned

    Messages:
    34,206
    Joined:
    Jul 13, 2003
    Car:
    Peugeot 403 Convertible
    You need to drain the engine block as well as the radiator.
    When refilling keep the heater controls on hot, fill the header tank, then run the engine until fully hot and keep squeezing the bottom hose. As the water level goes down keep adding more until all the air is expelled.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.