E Class no crank when hot Dan fixes it!

[Oldspanners]

Interesting video for anyone with this problem.

 

[EmilysDad]

Just watched that ..... unfortunately an expensive resolution

 

[malcolm E53 AMG]

Can’t believe they put the ECU there???

 

[Gazwould]

Is this ecu not cooled by an air filter housing ?

 

[Oldspanners]

Is this ecu not cooled by an air filter housing ?

It is when it's running but unfortunately heat soak takes over when stopped but having said that this particular ECU was butchered when other repairs where made. Most electronics can cope with engine bay temperature.

 

[malcolm E53 AMG]

It is when it's running but unfortunately heat soak takes over when stopped but having said that this particular ECU was butchered when other repairs where made. Most electronics can cope with engine bay temperature.

The thing is they don’t call it a hot vee for nothing I certainly wouldn’t put it there, to me a previous repair would indicate it wasn’t very happy with those temperatures

 

[Oldspanners]

The thing is they don’t call it a hot vee for nothing I certainly wouldn’t put it there, to me a previous repair would indicate it wasn’t very happy with those temperatures

There are certainly cooler places to put it but just how many M112 have suffered from this doesn't seem to be many?
The other "repair" may well have been the cause of the new problems.

 

[EmilysDad]

I like his videos, presented in a way even an idiot can understand.

The best/worse case is the keyless 3 series BMW that won't start. It turned out to be the passenger door handle that had failed due to water ingress!