Thought It stopped quick !

[peterchurch]

Hi,
I tried to have my disks and pads changed today I say tried because when my chap got my wheel off the existing disks were huge (330m m in fact...) It came as quite a shock and most of the people that I spoke to (including Jimmy) could only find disks and pads up to the size that I had bought (300mm)... Even an SL600 only has 320mm disks So I phoned MB and gave them the WDB number and guess what? "They should be 300mm disks sir, we have 2 in stock ...." Doh! explained that I actually have 330mm disks on at the moment and there was an amused pause... God knows what they are then sir !!!

So I am now trying to figure out where these beasts came from The calipers are rather large as well the closest suggestion that I have got so far is that its either a custom factory modification using S class disks etc

Anyone heard of this sort of mod before?

Regards,

Peter

 

[kjgood]

will this help?

Just ran a basic search for mercedes 330mm discs and found loads of references. Try doing that. The attached link may be of some use.

http://www.topgear.com/content/features/stories/mercedes_eclass/11/

 

[peterchurch]

Just ran a basic search for mercedes 330mm discs and found loads of references. Try doing that. The attached link may be of some use.

http://www.topgear.com/content/features/stories/mercedes_eclass/11/

Cheers for that I know the R230 has the 330 mm brake disks but I have a 129 and all the _standard_ kit for this version is 300mm

 

[GrahamC230K]

Are all the parts MB? Nice find, but slowed your replacements down I expect. Best call your insurance if you are non-standard!

 

[peterchurch]

Are all the parts MB? Nice find, but slowed your replacements down I expect. Best call your insurance if you are non-standard!

Yes thats the next job on my list... problem is people don't normally put big brakes on unless they have done something else to need it that will be fun to figure out :bannana:

 

[GrahamC230K]

Stick it on a dyno and find out!

 

[peterchurch]

Stick it on a dyno and find out!

Odd went to MB and their disks are 330 despite saying that they are supposed to be 300

 

[GrahamC230K]

Odd went to MB and their disks are 330 despite saying that they are supposed to be 300

The outcome is just as well.

 

[peterchurch]

The outcome is just as well.

True now all I have to do is find the parts shop that makes the correct O.E product I think the most likely mob will be TMC friction or Arvin Meritor...

Will get on the case Monday and post part numbers and options when I get them...

But right now two companies have told me that 300 is correct and GSW even told me that I only needed 270mm Its not the companies in volved fault. Its the disk manufacturers that are giving the wrong information in the catalogs

 

[SeanO]

Its possible that when the R129 got its facelift in mid 98 they increased the size.
PS I have 330mm on mine also

Pascal

 

[peterchurch]

Its possible that when the R129 got its facelift in mid 98 they increased the size.
PS I have 330mm on mine also

Pascal

Yes thats exactly whats happened It came as part of the switch to ESP from the old ASR, and better suspension setup and 17 inch wheels But the problem is that all the OE manufacturers are still selling the old 300 or 270mm disks