Where is this located?

When I am turning the car from "off" to "Ignite" position, to wait for the glow plugs to warm, when I turn the key I hear a very faint noise, almost electrical I guess you could say, for 0.2-0.5 seconds. I turn on the car after the glow-light has disappeared and the car runs great. Recently had it serviced for safety and e-test and believe everything is in working order. I have great ears for things once I am use to them, and I believe this could just be me picking up on something that other people do not. No issues with the car other than this little noise when turning the key from off to "Ignite".

The care rides great. A VW dealer changed an air intake and 2 wires (unclear where). After picking up the car the light and warning returned within 2 days. Any ideas.

They used the hand computer on my car. I thought he said it was the trottle. He said it was something on top of the motor. They removed it and said if it comes back on to bring it back to be fixed.

It went out. Does this mean I do not have any brakes?
Is it safe to drive it?

Could this be it has a tiny leak or something worse?

Code is P2100 (Throttle Actuator Control Motor Circuit/Open.
Need to know if anyone else has had this repaired? Car failed emissions test due to this code light being on.

I need oil change and what else

Engine Management light comes when driven 60mph and above.

The mechanic said it waking a little noise from the inside of the engine and it's no trouble, just if it bother's me, the chain needed to be replace then.

The car sat for 12 days in mild winter weather from 12/14 - 12/26. Initial engine start was really rough but after a few minutes it seemed fine. A few days later the MIL came on. Took to VW dealer and diagnostic code revealed TC failure.

I have a vw passat 2.0 TDI on a 55 plate.
After i have been driving a while i get a fault comes up on my dash saying po234 turbo super charger over boost condition. what can i do to find the fault.

help please

What is the cost to replace the automatic transmission?