W113 Pagoda SL Group > Drive train, fuel, suspension, steering & brakes

Master Cylinder

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colinevans:
Hi
I have a 1971 280SL Coupe. The front calipers have been sticking for a while now, I think it is probably collapsed hoses but I want to give the brakes an overhaul. The master cylinder looks like its original and its very corroded on the outside, so I think it makes sense to change it at the same time. The problem is that Poole Mercedes have advised me that there were originally two types, Bendix & Teves, and they need to know which I have fitted. I can't see any markings on the cylinder or anything in the manuals. Can anyone please advise?
Many thanks
Colin

Naj ✝︎:
Hi, Colin,

The calipers on your late car will most likely be ATE (Teves). Even if they are Bendix, they are interchangeable with ATE.

Replacement Delco ones are available on Ebay.

https://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItemVersion&item=332472805956&view=all&tid=1629742461014

This is the left one.

And the right:

https://www.ebay.co.uk/itm/MERCEDES-280SL-W113-2-7-Brake-Caliper-Front-Right-70-to-71-M130-983-Remy-Quality/332475969007?fits=Car+Make%3AMercedes-Benz%7CModel%3APagode%7CCars+Type%3A280+SL%7CPlat_Gen%3AW113%7CCars+Year%3A1970%7CVariant%3AW113+%5B1963-1971%5D+Convertible&hash=item4d691cadef:g:2ycAAOSw1NFaJ3h9


Note: They are handed left and right.

naj

MikeSimon:
The cause for the sticking brakes is most likely the master cylinder. If the bleed holes are plugged, there is no pressure relief. Then again, old, corroded calipers may have stuck pistons.
I doubt it is a collapsed hose.

colinevans:
Thanks Guys
Naj, it was the master cylinder make that I was talking about (that Poole Mercedes asked me to clarify), not the calipers.
Regards
Colin

Cees Klumper:
My money is on the hoses.

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