Usefull info on brake upgrades.
There's lots of MB forums regarding brake upgrades for the W124, especially for those uprading from E320 mostly in the USA to E500 brakes, but for those of us in the UK with lesser spec models I found that the E320 4 pot calipers are a direct replacement for my E280 single pots. All I needed was a couple of washers between each caliper and the mounting knuckle to pack it out 4mm and they work perfectly with my standard E280 discs which are only 5mm less in radius than the E320 discs. So the E320 pads are a tiny bit to large (2 or 3mm) but you don't notice.
You certainly notice the better stopping power afterwards.
A recommended cheap upgrade without going down the hard to find E500 brake caliper and disc route.
There's lots of MB forums regarding brake upgrades for the W124, especially for those uprading from E320 mostly in the USA to E500 brakes, but for those of us in the UK with lesser spec models I found that the E320 4 pot calipers are a direct replacement for my E280 single pots. All I needed was a couple of washers between each caliper and the mounting knuckle to pack it out 4mm and they work perfectly with my standard E280 discs which are only 5mm less in radius than the E320 discs. So the E320 pads are a tiny bit to large (2 or 3mm) but you don't notice.
You certainly notice the better stopping power afterwards.
A recommended cheap upgrade without going down the hard to find E500 brake caliper and disc route.