Hope everyone is well. Yet again I ask for your advice/suggestions.

I have a 2005 RRS Diesel and touch wood other than the three amber lights and two dongs from the system issue (HDC issues) I haven't had any cause of problem with my car, however, this morning I noticed a noise I haven't heard before, it's a whine which you can hear on tick over or low revs (as the noise of the engine masks the noise over 2,500rpm). It's not the turbo I think as this sounds/acts as normal. On idle if you tap the accelerator the whine increase and then decreases as the engine comes back to idle/700rpm.

Anyone have any ideas? I don't like the idea of sending to the dealer unknowing what the issue may be.

Cheers,

Stuart

What is the cars mileage? At first guess i would suspect alternator or one of the belts are slack or worn.
Ady

98,000 miles sir. No electrical power issues, not running in low power mode or anything. . .

Along with alternator or belt, check the belt tensioners too, upper and lower, the bearing in the lower one tends to take more of a hammering, and can fail at that mileage. RRS TDV8 Buck Blue (no, not now in my dreams). ..........D3 TDclankety clankV6 ............BMW 318i

Can you identify if it coming from the back or front of the engine? Its almost due for its belts changing anyway

I think the whine is coming from the front, just started up to check and got a whiff of something like brake linings, saying that I don't make a habit of sniffing under the bonnet on startup!

Thanks for the advice thus far, will get the car booked in at the garage.

Stuart