[W126 Coupe] (no subject)

[Dick Spellman]

Hi Philip:

Thermostat 83 C and replenish the anti-freeze with Zerex G05 or MB 
antifreeze only.
Visco Fan Clutch
Check your various belts and hoses at the same time
Where you are in Boulder you could wire-up a relay for the aux fans to 
always be on when the AC is selected on the climate control.

In any event, you likely need the tstat and visco fan clutch to resolve 
the overheating before you end up with bigger problems like head gasket 
etc.  The above presumes you do not see coolant loss and/or you do not 
see bubbles in the coolant expansion tank with engine running, in other 
words the head gasket remains intact at this time.  You can get a deal 
on parts from Jonathan or Rusty for the SEC.

Regards,

Dick

PHILIP GERONIMO wrote:

>
>
> Hello, I just bought a 1987 560 SEC. It flirts with overheating, i.e. 
> during normal driving, no matter what conditions the temp gage climbs 
> to 120C and the red zone, and then the aux fan kicks in, in order of 
> frequency, what is the most likely cause? I need to prioritize my 
> spending. Thanks in advance for the help.
>
> Philip, Boulder CO
>
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