With a previous front rotor change @ 50m I did not renew the caliper bolts as suggested by MBZ. I just did them again @106m but I did renew the bolts this time.

Does everybody here renew the bolts at rotor change or do you reuse them?

This is news to me. I just clean them off and use new bluloctite.

You're supposed to change caliper bolts? First I've heard of that. Is this one of the newer models?

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.

still using mine on the w140,and 30 year old w126

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

New MB bolts come with the loctite already applied to the threads.

If you use new bolts, you will have loctite.
If you reuse your bolts, maybe they got loctite, maybe they didn't.

Just a belt and suspenders approach by MB.

Jim

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14 E250 BlueTEC black. 45k miles
95 E320 Cabriolet Emerald green 66k miles
94 E320 Cabriolet Emerald green 152k miles
85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles

I don't profess to understand the reasoning behind some of the decisions or recommendations MB makes. Maybe it's loctite, maybe it's stretched threads.

I'm replacing the RWB in my W210 in the immediate future (doing the rear brakes at the same time for obvious reasons!) and the kits (FAG from PP) came with new caliper bolts, so it's kinda obvious those will get changed.