Just though I would post these pictures. I replaced my brake rotors a while back and after going through the vehicle records I couldn't find any indication that they were ever replaced previously which means that these could potentially be original and therefore 300,000 mile rotors! The lip on them should give some indication of their age.

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1982 300GD Carmine Red (DB3535) Cabriolet Parting Out
1990 300SEL Smoke Silver (Parting out)
1991 350SDL Blackberry Metallic (481)

"The thing is Bob, its not that I'm lazy...its that I just don't care."

Turn them & see if they'll go another 300,000.

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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.

doubtful...

not impossible, but very unlikely.

good pads, non metallic always... soft braking... mostly highway driving, I could see it.

DON"T TURN THEM!!!

I'd just hit the lip with a grinder, and put them back on, assuming the thickness is within tolerances.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

if the car was always from CT, I seriously doubt it. Did it come from some wide open state with vast highway distances? Then it could be possible.

Ive never gone down 95 without slamming on the brakes at least a few times. I doubt even a benz rotor could last 300k in those local driving conditions.

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Actually I think it is possible. The car had 150,000 or so miles on it when I purchased it and the original owner used to drive it all the way up and down the east coast (I have oil change receipts from just about every Atlantic state Mercedes dealership.)

I myself drove a lot of mostly highway miles over the next 150,000 miles and most of that was on I-84 or the Merrit parkway during off-peak hours. I would say that i'm excellent at predicting traffic so most times I would just left off the pedal long before so that the brakes were only rarely used.

(FYI I already installed new rotors last year, I had these in the shed, they are destined for the scrap yard)

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1982 300GD Carmine Red (DB3535) Cabriolet Parting Out
1990 300SEL Smoke Silver (Parting out)
1991 350SDL Blackberry Metallic (481)

"The thing is Bob, its not that I'm lazy...its that I just don't care."

Maybe the classic center will put them on display .

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

scrap yard? why? did they pulse or chatter? they look great to me. not perfect certainly, but still WAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYYYYY better than some I've pulled off of cars.

last week, I pulled the pads, and they were VERY conical shaped towards the center... turns out, the inner surface of the rotor on the center edge was GONE!!! air blades showing through the surface... REALLY bad.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Do people tell you you're too cheap? I get that a lot when doing stuff like homebrew brake machining.

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$60 OM617 Blank Exhaust Flanges
$110 OM606 Blank Exhaust Flanges
No merc at the moment

Put them up on eBay as "Genuine Mercedes-Benz Vintage High Mileage Award Winning Rotors".

That or stick them in the trunk as spares, like some do with their old radiator hoses.

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1979 300D 040 Black on Black - 1985 300D Maaco job (sadly sprayed over 199 Black Pearl Metallic) on Palamino

http://i.imgur.com/LslW733.jpg

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Visit the W123 page on iFixit for over 70 helpful DIY guides!

Hm, my rotors have a similar lip... you'd just grind that off?

-J

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

I would say they are free to whoever want's them if they want to do that

Thats what happens when you have 300x28mm rotors. I'm surprised more W123 owners don't upgrade to these.

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CENSORED due to not family friendly words

If you do a lot of highway driving with minimal stopping then those rotors can go the distance. But on a lot of stop and go traffic, they'll get chewed up much sooner.

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http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg

My rotors on my 420SEL only have barely 10k on them and they are almost half way to that level of wear! I drive rather aggressively...

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

yup.
I fire up the side grinder, and gently set it on the edge of the rotor, then rotate the rotor until the lip is gone.

DONE.
however, if there is any pulsing or chatter from the brakes, I just toss them... I don't want to turn MB rotors, and there is no way I could fix a warped rotor with a side grinder!

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!