Madara

Hey my supercharger pully wasn't engaging and I replace the pully itself and still doesn't

anyone have any idea why? I have a video of it.


05 SL55 AMG.

Nor Cal SL55

There is a magnet that triggers the engagement of the pulley. Yours may be bad? Bad connection?

Madara

How do I check this? any ideas

Nor Cal SL55

Check out these threads.

Hope this helps

https://mbworld.org/forums/w211-amg/...es-engage.html

https://mbworld.org/forums/w211-amg/...removal-2.html

bbirdwell

Good stuff here. Use the "translate this page" button on your browser address bar to better understand. Helhans website is a great private website and I find it to be an invaluable source of information.

You're wanting section 3.2 Connections Magnetic Coupling

http://hehlhans.de/motorg55-7.htm

If you have STAR/DAS/Xentry you can check the magnetic coupler under the Motor Electronics section. It will be either controls or actuations; I don't recall at the moment.

cnterline

If you have STAR the on/off may be reversed it was on mine , activating the magnet off actually turned it on/energizing it FYI

bobterry99

This video is meaningless, since on no account will the supercharger engage on a stationary vehicle.

Presuming the compressor is not engaging, then at the engine ECU I would measure the voltage on its control signal using a multimeter.

Madara

I'll try to check with STAR and see because im keep losing and power and it comes back, had the problem before I replace with a new pully still don't know what causes this