Identifying W126 Brake calipers

I recently attempted to take my 560SEL on a Mercedes Club night drive. On the way there, I experienced a soft brake pedal and a very hot drivers side rear wheel. I had an issue with a soft brake pedal on a mountain road back in 2020. At the time I thought I had solved it as I removed the aftermarket brake dust shields and had all the hoses replaced. It’s pretty clear that I have a sticking rear caliper (or two) that is the root of the issue. It also explains why I always felt the 560SEC had better […]

450SLC Dragging rear brakes – part 2

A couple of weeks ago I started investigating the dragging brakes on my SLC. I found both of my rear calipers had been overheated and were in poor condition. I ordered a set of rear calipers, and decided to change the rotors too. Mine were still in spec, but on the lower end. The hoses I had purchased last time were also not right. I needed hoses with two female ends but the other hoses were male/female.

The first thing I found was that it was quite hard to remove the old rotors. Not only were the rotors rusted […]

450SLC Dragging rear brakes – part 1

For the last couple of years I have noticed a noise from the rear of the 450SLC while driving. At first I thought it might be a wheel bearing or some kind of bushing. I mentioned it to my mechanic and he took and look and it wasn’t any of those things.

Last time I took the car on a longer drive, the noise was getting worse, and I noticed after I returned the rear wheels were hot to the touch. Too hot to touch. I realized that my noise had been dragging rear brakes all along.

Both sides were […]