W202 C180 1995 overheating

Discussion in 'New member introductions' started by bravedude, Jul 5, 2015.

  1. bravedude

    bravedude New Member

    Messages:
    5
    Joined:
    Jul 9, 2013
    Location:
    Moscow
    Car:
    1995 W202 C180
    Hi everybody.
    I've got a boiling coolant issue with my C180. I changed my head gasket last year november. The car has been good till now. At the speeds of 110 - 150 km/h, my coolant boils over and spills away. I changed the viscous coupling almost a month ago. But I've realised that at high temperatures the viscous coupling doesn't kick in. I may be wrong though. Please I need some advise.
     
  2. Hals1985

    Hals1985 New Member

    Messages:
    9
    Joined:
    Jul 4, 2015
    Car:
    c32 amg
    Possibly thermostat, if electrical fan check connections to fan. If mechanical check/change the coupling between water pump and fan. I had an overheating issue on a 300zx and it was the heater element leaking and letting air into system. Work through cooling system in steps and check it all
     
  3. OP
    OP
    bravedude

    bravedude New Member

    Messages:
    5
    Joined:
    Jul 9, 2013
    Location:
    Moscow
    Car:
    1995 W202 C180
    Thanks for the advise. I'll double check on cooling system. Today, driving back home just a 3.1 km drive, I was reading high temps. Just above the 3/4 mark. I decided to take some shots of cooling holes. Just at the thermostat I noticed a the tube has swelled up. I immediate suspicion is the thermostat. I maybe wrong though. Mid last year, I fixed a new thermostat. On the old (original) was written 87 C but new one (analog) was specified 77 C. Could this also be the cause? Please, need some advise. Thanks.
     

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