Offside front linkage and suspension arm

[Fawazmavoor]

I have got an advisory to change ''Offside front linkage and suspension arm'' and brake pads for my MERCEDES-BENZ C-Class Saloon (W204) C 220 CDI (204.002) Diesel 170 hp, reg no: KP61DZE

My workshop is charging me huge amount so I would like to purchase the part on my own, so could anyone suggest where i can buy and give me the exact part number?
I'm from UK.

 

[Trickythemerc]

Huge amount ................£££££££££££££££ Give us a feckin clue.