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Hello everyone, I have this annoying whining noise on my car. It’s a lot louder when the cars cold and then when it warms up it’s less noticeable but still there. It gets louder and quieter with revs up and down. Changes sound when you use paddles to change gear (goes back quiet and whines louder with revs going up). It also does it at a standstill in park, neutral whilst driving etc. It’s been to a VAG specialist and they can’t locate the fault.
I’ve fitted: 3x idlers, tensioner, new serp belt, crank pulley, reconditioned alternator. Turbo has been inspected today and they believe that isn’t the cause. Gearbox was rebuilt around 9K miles ago. Car is now on 156K.

does anyone have any idea or have they had it themselves? It’s driving me insane now!
 

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Ello Nick and please show us a pic of the car and not you!!!! Is yours diesel?? And automatic, which gearbox?
 

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PS whining in the car often comes from forgotten wives, they do that hehehehe.....
 

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I suspect the water pump. Same thing happened with my old Nissan 200SX. Mechanic found out it was the water pump because it squeaked when turned by hand (obviously done when the motor was off!). Have your mechanic take a stethoscope and check if the whining or whirring sound is coming from the water pump. If it is, the water pump's bearing is toast.
 

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I suspect the water pump. Same thing happened with my old Nissan 200SX. Mechanic found out it was the water pump because it squeaked when turned by hand (obviously done when the motor was off!). Have your mechanic take a stethoscope and check if the whining or whirring sound is coming from the water pump. If it is, the water pump's bearing is toast.
Yep. Although the op has replaced a lot of parts i would suspect the waterpump.

I had a 2.7TDI A5 and my water pump used to make a small whine. I ignored it and the pump pop out the front of the engine on the motorway. Serpentine belt was thrown of as well. Fortunate no peripheral damage so just new pump/ belt and refill.

Get the pump checked (if not done already).
 
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