I have seen the rebuild kits around for w123 Bendix calipers, at least for the front. Has anyone rebuilt these, and know if the front and rear rebuild kits are the same? Also, is anyone aware if the pistons are the same F/R, and if they are available? Ive seen a lot of ATE rebuild kits with 38mm pistons, but not Bendix.

Thanks!

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)

I don't think front and rear are the same. l Don't know if kits are same....could be.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Reasonable cost sources for the brake caliper kits? I have noticed some retailers are very high in cost.

They are charging a premium and have been for Mercedes rebuilt calipers in Canada. We can buy from America but shipping is really punitive.

Rebuiid kits are reasonable to get mailed to here.

I’ve seen rebuild kits in the $14-25 range but front only and no replacement pistons. This my concern If I start down the path of a rebuild and the piston is corroded or scored, then what?

Seems the ATE pistons are available.

I can’t imagine the Bendix pistons in MB calipers are that different than any other caliper made by Bendix back then, or perhaps even today

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)

I never completely rebuilt my caliper, just a reseal.

My rear caliper was leaking the piston, used a rust converter and brass brush to clean up the piston and bore. However my rust was light and I was lucky to have no scoring.

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

Frenkit 260922 is repair kit for bendix (pistons incl.)

Be aware that not all calipers are the same ~ my 300TD's front calipers were supposed to have steel pistons and came to me with phenolic pistons that failed and leaked in a year or so .

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-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

I am repairing the rear brakes on my '83TD and discovered, after removing the calipers, that I have two different size pistons. Years ago I replaced the left Ate caliper because of dragging. Everything seemed fine except I did notice a slight pull to the left when braking, which I just ignored because it was not so bad. Today I have the calipers off and the right is 38mm and the left is 42mm. I have been driving it like this for bout 5 years. The calipers seem to be the same in every respect except for the piston size. I learned something today! Always a good idea to do the same brake repair to both sides whether it needs it or not, just to keep the action even.

Thanks!!!

That’s the exact lead I was looking for!

For others’ awareness, the catalog is here:

https://www.frenkit.es/files/2019/03/allkits-4.pdf

And rear Bendix kits are part number 238928.

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)

I've found it not worth the effort to rebuild these days. Remanned lifetime calipers are available locally and have lasted for years although it may take a couple to find a good set. I buy locally so that returns are easy without shipping costs.

Rebuilding used to be SOP but that was when money was tighter and parts were more expensive. It only takes one issue with the caliper to cause it to be trouble and possibly not buildable and require more time to find and order the complete caliper anyway. I used to cut my own wood to heat with but the chain saw hasn't run in 20 years or so. Times change.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.

Looks like this Kit comes with the O-rings so that you can take apart the caliper.

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84 300D, 82 Volvo 244Gl Diesel

I don't know if this site works but I used this companies kits on my Mercedes and Chevy Van. No Pistons come with the kits.
I also have used their Brake Pads and their Rotors on another Chevy.

Anyway I get the part number from the catalog and then go looking for a price.
Centric Brake Parts Catalog
https://centricparts.centriccatalog.com/

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84 300D, 82 Volvo 244Gl Diesel