Water temperature fluctuation W204

Discussion in 'General Discussion' started by jonnymerc, Jan 26, 2017.

  1. jonnymerc

    jonnymerc Hardcore MB Enthusiast

    Messages:
    849
    Joined:
    May 1, 2010
    Location:
    kent
    Car:
    W204 C CLASS SALOON AMG SPORT PLUS AND A220 AMG HATCHBACK AUTO 2019
    The problem I am getting when the car is up to temperature about 87c after a while it drops to 80c after a short time it goes back to 87c then back to 80c and so on it never goes past the normal temp
    It's a 2014 c class w204
    Does any one know what the problem could be?
    Many thanks john
     
  2. mbenz1

    mbenz1 Hardcore MB Enthusiast

    Messages:
    947
    Joined:
    Jul 27, 2010
    Car:
    '05 C220 CDI Avantgarde SE
    It's most likely the thermostat, it is not closing properly. Very common issue on this engine.

    Once the engine is at normal temperature it should stay there spot on. Had this problem on our C220 CDI 2005 (same engine but not the EVO type like in your car)

    We got a genuine thermostat from MB (circa £50) plus 1.5 L of MB neat coolant (circa £12) and changed the thermostat and the needle now sits at 85C and doesn't move. Slight improvement in fuel economy and better warm up times.

    Sent from my GT-I9505 using MBClub UK
     
    1 person likes this.
  3. mbenz1

    mbenz1 Hardcore MB Enthusiast

    Messages:
    947
    Joined:
    Jul 27, 2010
    Car:
    '05 C220 CDI Avantgarde SE
    Apologies mate I thought I had read 'c220' somewhere in your post but just re read it now and you did not mention c220 anywhere.

    Is yours a 220CDI?

    Sent from my GT-I9505 using MBClub UK
     
    1 person likes this.
  4. OP
    OP
    jonnymerc

    jonnymerc Hardcore MB Enthusiast

    Messages:
    849
    Joined:
    May 1, 2010
    Location:
    kent
    Car:
    W204 C CLASS SALOON AMG SPORT PLUS AND A220 AMG HATCHBACK AUTO 2019
    Hi mbenz1
    Thanks for your quick response
    It's a 180 CGI PETROL
    THANKS JOHN
     
  5. mbenz1

    mbenz1 Hardcore MB Enthusiast

    Messages:
    947
    Joined:
    Jul 27, 2010
    Car:
    '05 C220 CDI Avantgarde SE
    Right so I was wrong there :).

    My money is on a faulty thermostat. Good luck

    Sent from my GT-I9505 using MBClub UK
     
    1 person likes this.

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.