2010 W212 E350 CDI OM642 - cooling fan running

[jeremy156]

Hi all,

I'm sometimes noticing that the radiator cooling fan is running at the end of a run when I wouldn't expect it. I don't know whether it's running throughout - I just notice it as I slow enough to hear/notice it.

This has been on perfectly normal warm-ish days (16-18 degrees C) with a normal speed drive giving plenty of airflow. I'll arrive onto local roads and wonder why there's so much noise - to discover the cooling fan is blowing hard.

Coolant temperature looks to be normal.... so I wonder what I should be looking at to determine whether there's a problem. Any thoughts?

 

[television]

These are coupled to the aircon, its quite normal after a run for the fan to run or even start up on its own when turned off.

 

[jeremy156]

Thanks Malcolm - I had a feeling I'd be worrying about nothing

 

[paul_f]

The vehicle will have been part way through a DPF regeneration, so the fan is used to then cool the engine bay down

 

[Cole@MBS]

Thanks Malcolm - I had a feeling I'd be worrying about nothing

You normally do mate

 

[jeremy156]

I like worrying Gotta care for your loved ones - metal or otherwise