What is the collective view on rebuilt units?

If I could get a kit, I would have no qualms about putting it in but those days seem to be behind us. I guess it is the result of labour costs in the shops. People are not willing to pay the cost of having kits installed - just faster and cheaper to throw in a new or rebuilt unit even if it is not as good as the original. I would guess, given the car is close to 40 years old that it is just the rubber giving up but I suppose we would not know if the bore was corroded by water in the brake fluid eating away at it over time unless we opened it up first.

That AutohausAZ unit claims it is new oem but with the grommets is pushing $300 US and with our dollar the way it is, that will run closer to $400 Cdn plus 13% tax at the border. Ugh!

Cannot complain too much as I have had the car about 10 years and have done little or nothing to it. Have not driven it all that far either but it has been reliable to date.

RB

On 11/06/2015 3:12 PM, fmiser via Mercedes wrote:
Randy wrote:

It brakes but not very hard and pumping the pedal does not
all that much to make it better.

It feels like when one presses on the pedal while another
bleeds the brakes. It just slowly descends until close to
the floor.
If not, then I suspect the master cylinder is leaking
internally.
That is the classic symptom of master cylinder failing.
Fluid getting past the main seals.

Often, if you move the pedal hard and fast it will still
"catch" and once there is pressure the seals usually seal.  A
slow, gentle press will allow the pedal to sink to the floor.

If so, is there a kit to repair or am I compelled to
replace the whole thing?
I failed to find a kit.  But I did not check with Classic
Center.  And I have 123s, not 115s.

In either case, where would one best look for parts?
Rusty.

Oh yeah.  *sigh*

I'll bet Dan will say "a dealer".  I would try to figure out
the brand of the OEM (Bendix? ATE? Or is that just slaves?)
and then use RockAuto, AutohauseAZ, FLAPs, etc.

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