Hi All,

 

I've been having a world of fun recently with my 60k 2010 2.0 140 CR diesel!  in the last 2 months it has had:

• new clutch and DMF
• timing belt, water pump and aux belt
• 2 new injectors

Since the recent work a high pitched whine has become apparent about 80% of the time, it sounds like alternator interference on a car radio used to.  It sounds as though its coming from the engine bay.

it doesn't do it when cold, but kicks in as the car starts to warm up.  I happens in or out of gear, clutch in or out, car moving or not moving, and although the pitch changes a little on revs, it isn't much affected by revs. 

the fuel pump under the rear seat is running quietly.

 

although I don't think its connected I have a slight diesel leak form the fuel filter area which I am trying to track down, perhaps diesel is getting onto the aux belt and affecting it.

 

I suspect an pulley bearing / tensioner most...  Any wise words from anyone?

 

Water pump?

I would say the timing belts to tight and will get a little worse as the engine warms up.

I would say the timing belts to tight and will get a little worse as the engine warms up.

Also be careful of the filter leaking with it being near the belts

Edited 27 February, 201610 yr by Snapper1725

I had a similar whine which was the turbo. Luckily it was just under three years old and so replaced under warranty - a £1600 job!

So quick update to put this one to bed,

 

the fuel filter had been so damaged by an inept mechanic, that I think there was air getting drawn in between the lid and can making the whining noise.

sourced a replacement housing and had it properly fitted and no more noise.

 

BTW the housing is £208 from Skoda! but I found a brand new one from a German ebay seller called Mteile.  arrived in three days for £78.