W212 - noisey solenoid valve

[steveng]

Get this a rusty squeaky noise from undercarriage and had c n c changed out but noise back within a month. Mercedes seemed not intetested to address or has no solution. Now going back to service bef 100k, ask for changeout again and c n c offers to extend extra 1 yr warranty, asked Chris brown is c n c expecting me go back to changeout every 1-2 months n wat's mercedes' plan.....waiting for response..anyone having same noise?

[MercZai ♫ Loüis ッ]

hi welcome ! i dunno whats the noisy of "rusty squeaky noise" but is it those helicopter like sound or dong dong dong , tok tok tok .. if it is then this problem has been discussed before a lot of times . do a search on it . cheers for the 1 year extended warranty anyway

[Cloud]

hi welcome ! i dunno whats the noisy of "rusty squeaky noise" but is it those helicopter like sound or dong dong dong , tok tok tok .. if it is then this problem has been discussed before a lot of times . do a search on it . cheers for the 1 year extended warranty anyway

I dont think he is referring to the sound of the suspension...could be some high pitch squeaking sound...

[steveng]

It sounded like a rusty door hinge...audible at low speed possibly cos it gets drowned out by other noises at hi speeds...no particular manouvre...slowing down bef hump, reversing to park...fr chris one other w212 had the same prob...not sure if he manages all sc or just pandan....