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Old 11-27-2002, 04:16 AM
Chris Martens's Avatar
Chris Martens Chris Martens is offline
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Join Date: Nov 2002
Location: Berlin, Germany
Posts: 80

>I did a LOT of research on this since I am planning on upgrading my brakes too. First, I would not bother with ANY W140 brakes, it is highly unlikely anything wil swap.

I don't know for shure, but some months ago a buddy bought some W140 front calipers, light alloy, black colour, for his W201 3.2 AMG (that allready has the upgraded - or different - lower control arms). They looked the same than the early 500E calipers...

> You didn't specify what year your CE is.

see Brandon's footer: 89' 300CE
The stock brake for a 1989 300 D/E/CE/TE is single caliper floating type and vented rotors 284mm x 22mm.

> The very late versions had 294x25mm brakes with 4-piston calipers (early ones had 4-piston calipers with smaller 295x22mm rotors). The real early ones, through 1989, had 284x22mm with a single floating caliper.

I will read your tables carefully, thank you for the work you did!

>I haven't personally tried it on my car yet since I haven't bought the new big rotors yet. I did score a set of E420 brake calipers, front and rear, which will bolt on.

I tried it but to now avail because of the old style control arms with the pressed supporting mount (is thas the correct term?). The picture I posted yesterday shows the old control arm with the (used) rotor for the larger brake in close contact :-(

>The 500E brakes are even bigger but may require the 129 hub and/or knuckle used on the 500E (there are conflicting reports about this, nobody seems to know for sure).

The parts list from EPC should help, but I didn't do research on this.

> The problem with the 500E brakes is the weight. They add SIGNIFICANT unsprung weight to the front end and that reduces handling feel.

Early 500E brakes have light alloy calipers, later on Mercedes changed to the R129 calipers, made of cast iron, for the 500E due to thermal problems with the light ones. Since the 400E calipers are cast iron as well, the weight difference should be small.

>Plus the cost is very high, used 500E brakes are scarce.

Costs of new parts are HIGH. Used ones in good condition should do it.

bis denn,

1989 300TE
improve your German - please visit my homepage :-)
Das W124-Archiv

Last edited by Chris Martens; 12-24-2002 at 02:35 AM.
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