[lewdon]

looking for some ideas on why the front main fan comes on when only driving for a mile to the shop
when started from cold . this happens a couple times per week ,had the wife take car to dealers for prop bearing failing under warranty they told her it was normal all diesels do it. unfortunately i call bullsh*t on this one but would like some info before going in next week for new propshaft. thinking of asking what they said to be put in writing has car will be out of warranty in three weeks.

 

[♠ChumBucket♠]

Air-con can cause it or most probably a DPF regeneration. Read around this forum about DPF's.

 

[lewdon]

have to rule out the dpf regen and aircon off did check that

 

[Richie]

Interesting! What happened with the propshaft, can you share a litte more about it?

 

[lewdon]

support bearing vibrating between speed 12-18 mph then would balance out only 34000 mile on clock just caught the end of the warranty period and did take a look for any missing wieghts non missing.

 

[antara184]

I certainly wouldn't drive a car a mile to the shops and back.

If you HAVE to drive the car for that short distance you'd be wise to go for a proper drive to warm the engine/gearbox up. I suspect that the DPF is being cleaned or it's just the air-con fan.

Short journeys are very bad for engines, even more so modern diesels.