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Always remembered RIP
- Joined
- Mar 14, 2005
- Messages
- 164,073
- Reaction score
- 368
- Age
- 89
- Location
- Daventry
- Your Mercedes
- 2002 SL500, 216 CL500, all fully loaded
Hi
On my E300td the bi-metalic strip is on the back of the viscous clutch. The viscous clutch for anybody that doesn't know is fitted between the waterpump pulley and the fan. C250TD i imagine would be the same. I fitted a new viscous clutch and it doesnt click in as described. (the electro-magnetic clutches click in).
One thing i found was that the new viscous fan would be engaged in the mornings at cold start up during the summer. Probably fan engages when car heated up after stopping and then was still engaged for a while after start up from cold the next morning. Dis-engaged shortly after getting out of first gear though.
Hope this helps
230K
You are not correct, all bi metal strips click, that's what your electric iron does as it maintains the set temperature, it clicks each time..
It is clearly stated in WIS when it says listen for the click, when the fan should speed up.
When an engine is turned off the heat will head towards the outside of the water components, due to thermal runaway. Cars with electric rad fans have a warning notice saying that the fans can start up after the engine has been turned off