If they are really warped, I'd be hesitant to do so, but if the thickness is within specs, then this is ok. (Totally German Auto, Phoenix.) Any reputable shop will tell you if these are to thin to turn anyway. I'd still get genuine or approved replacement parts and Chinese rotors are neither! The only thing they are guaranteed to do is fit.

Brakes are safety items - don't cheap out on them. OEM rotors are NOT expensive. Buy new rotors, end of story. They're a whopping $28 each for Balo rotors at ***************, or $34/ea here at MBShop (link at top of page). They're a PITA to replace on the front of a W123, though. Use the OE/dealer neon-green wheel bearing grease if possible (it's not expensive), and do NOT mix grease types. Don't forget to order new grease seals, and use a dial indicator to set the wheel bearing end play (the spec is stupidly tight, 0.01-0.02mm, or something like that.)

Another option is to upgrade to 560SEL brakes, which are vented... the 123 has solid front rotors, which are a little undersized for the weight of the car.

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Interesting about the 560 SEL brakes. what would be necessary for an exchange and retrofit? Just putting these on in place of the originals?

I have not done this myself, but I believe it's pretty close to a straight bolt-on, with the W126 calipers & rotors. I know some other forum mebers have done this. Maybe they could chime in? I know W124 brake upgrade options forwards, backwards, and upside down... but I've never investigated 123 stuff.

Some people say easy job, some say hard.

I'll probably do a lookup here unless someone can elaborate?

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85 300CD Turbo "Das Polluter" 230K sold for $3,000

98 BMW 323is

They're a PITA on a 123 because you have to mess with the bearings. On a 124, 129, 201, etc the rotor pops off the front of hub, no need to touch the bearings. It's a 10-minute job on those cars. On the 123, plan on several hours. Huge nuisance. Maybe not hard, just annoying...

Ok,

I will probably pay someone then.

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85 300CD Turbo "Das Polluter" 230K sold for $3,000

98 BMW 323is

The vibration nearly goes away when the brakes are hot.

In my 45 minute commute at around the 40 minute mark the vibration is nearly gone!!!!


Are the rotors are warmed up at that point and more pliable???

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85 300CD Turbo "Das Polluter" 230K sold for $3,000

98 BMW 323is