SL55 AMG (R230) - Noisy bottom Pulley

[C a r s e]

When I started my car this morning it was making a really loud ticking noise, looks like the noise is coming from the bottom right pulley (indicated with red arrow in photo).

Can any please tell me:
1) What this pulley does?
2) How easy is it to replace?
3) Part Number?
4) Estimated cost of part and best place to buy?


Thanks in advance
Kevin

 

[AMGeed]

I believe that is your a/c compressor pulley.

Can't help with part no's and prices I'm afraid.

 

[C a r s e]

See attached a couple of photos.

I have taken the clutch part of the pulley off and I am trying to remove the pulley wheel itself, does anyone know if the center nut (indicated by yellow arrow in pic) is separate of the center part (Indicated by red arrow)?

I was thinking of clamping the center part with mole grips and a socket on the nut but wanted a second opinion in case I cause any further damage.


The following site sells the Clutch assembly without having to buy the full A/C unit: Sprz?g?a kompletne klimatyzacji samochodowej - air conditioning replacement parts online shop