211 rear brakes binding

[Artlover]

Last week I had my rear discs and pads replaced (on my 2003 E320 CDi) at a tyre service depot. Since then the pads are permanently rubbing against the discs. The discs are getting hot on any journey over a few miles and the fuel consumption has nose dived - unsurprisingly.

When I returned the car to the depot, they said I now need 2 new calipers. Apparently the pistons have corroded and now that they are seated inside the calipers they are jamming on the internal seals.

I haven't come across this problem before and I'm a bit sceptical about the explanation. Has anyone experienced a similar problem? Does the explanation ring true?

 

[Tinkerer]

Never on this age of car, I would expect that they have not adjusted the handbrake correctly, you usually have to completely release the automatic tensioner before adjusting the shoes to fit the new discs.

 

[mersum1es]

I've read a few reports where W211 SBC rear brakes have caused odd troubles, one explanation was that if pads not fitted properly something will bend, and only cure is change all parts...