Q: Turbo whistling? 2008 VW Passat TDI

asked by on

I recently bought a vw Passat 1.9tdi saloon 2008. It had no power behind it and the car wouldn't tend to shake a lot on start up. Took to my mechanic he put a new timing belt and aux belt Ina md cleaned out the turbo and other engine components as they were groggy in oil. Now the car has twice as much power and the turbo is whistling. Is this normal " returned 0 results..

My car has 102000 miles.
My car has a manual transmission.

Hello - yes, it is possible, if not common, for the turbo charger to make a "whistling" noise. The fan section, or turbine, of the turbocharger, spins in excess of 100K RPM, extremely high speed, and any imperfection in one or more of the blades of a turbine could cause noise that we humans can hear. If it is bothersome, or seems excessive, I recommend an engine noise inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Turbo whistling? 2008 VW Passat TDI

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Glow plug warning light even after changing glow plugs

The glow plug warning light doesn't necessarily mean the car needs glow plugs. The engine control unit turns on the light to alert you that it has detected a fault in some component of the system, not just the glow...

Q: my interiro lights, headlights, radio turned off while driving

Hello, thank you for writing in. The vehicle is likely having an issue with it's charging system. The alternator and the battery will need to be tested. These can be tested in the vehicle, or bench tested at most automotive...

Q: My car ran out of gas, and now it will not crank

Sounds like a series of unfortunate events. Cars made in this century have the fuel pumps in the tank. The fuel passes through the inside of the pump motor and serves to cool and lubricate the pump while it is...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...