Is it a must to replace brake pads while changing brake rotors?

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1992 Mercedes-Benz 400E
2002 Mercedes-Benz ML500

Not a "must", but don't know why you wouldn't while you are in there. I would assume, that the rotors and pads have the same miles on them.

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95 SL500 Smoke Silver, Parchment 64K
07 E350 4matic Station Wagon White 34K
02 E320 4Matic Silver/grey 80K
05 F150 Silver 44K

I agree. Usually I would but if I happened to have newish pads I would not hesitate to use them.

Tom W

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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.

Pads dont cost that much more so replace them. Its your chance to get some pads that dont dust up quite as badly as the oe pads.........

but oe's like textar don't squeak.. I the dust..but I dislike the squeak even more

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


[/SIGPIC]

If your pads have a lot of meat on them, leave them be. Sometimes I get the rotor and pad servicing timeframes offset enough to not have to perform both simultaneously.

However, if you are replacing severely warped rotors or ones with an uneven surface pattern, it has probably translated the same wear patterns on the pads. I would replace under those conditions.

Seems like a waste to NOT do pads considering the effort required to remove the calipers and rotors.

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car