Golferjay

Hi,
I have my car up for sale, I’ve not had any issues with the car as it drives perfect have never noticed any funny noises from the engine, I had someone come and view it yesterday and they got me to start it up so they could hear they engine, they pointed out a whining noise and said that the turbo was gone, I did hear the noise but the noise went away after a few minutes of cold start up.

I just went out this morning to check it again and I put a timer on it, the whining went away after 2 mins of a cold start up, I turned the car off and restarted it straight away and the whining was there again but disappeared again after 2 minutes, it was like the noise just cut off rather than faded away.
Is this normal or do you think the turbo needs replacing?
The car has full power and very responsive.
I also should mention that I don’t really drive the car much but I do start it up from time to time and drive locally.
Any help would be much appreciated.

slammer111

The car has a supercharger, not a turbo. While I imagine these things can fail, it doesn't seem to be too common around here.

Can you post a recording of the whine?

If the sound disappears as the engine warms up a bit, it might be simply part of the warming up procedure. For example, for the M271 there's also that ticking noise by the supercharger (some purge valve) that goes away after maybe 30 seconds.

Also the supercharger can be rebuilt or replaced if that's a problem.

I'm thinking the buyer doesn't know what he's talking about.

Lastly, what year is your car?

Golferjay

Hi thank you for your reply, I hoping it is just part of the warming up process, seems funny that the noise just stops all of a sudden after 2 mins.
The car is a w203 c200 kompressor, 2001 with only 70k miles on the clock.
I’ll post a video if I can on here

Golferjay

I just went out to video the noise and noticed that when I put the key in the noise started without the engine running, I let it continue and after 2 minutes the noise shut off just like before, it’s quite loud.
It’s strange that the noise is there without the engine running.

Golferjay

This video is shorter so hopefully it will upload ok 👍

Golferjay

I just went out to video the noise and noticed that when I put the key in the noise started without the engine running, I let it continue and after 2 minutes the noise shut off just like before, it’s quite loud.
It’s strange that the noise is there without the engine running.

I’ve added the video onto YouTube, see link below

Golferjay

Just thought I’d update as I found out the issue, it’s the brake buster pump located at the front right side under the Bonet, he’s a pic of it