Brake fluid, question...
1. Right rear
2. Left Rear
3. Right front
4. Left front
and: Better use a Power Bleeder as described further up in this thread, rather than pumping.
The Best of Mercedes & AMG
While the SBC system has now been replaced with a hydraulic one, the complex ESP systems in the current batch of cars rely on essentially the same servos and pumps that were developed for the SBC to provide very rapid automatic brake modulation, and require that specific MB fluid to operate properly and maintain their longevity. That's what they are selling for $20 a liter.
You are not going to find any more info on it (just like you won't on their specific coolant either) unless you get a job as a design engineer at MB Germany.


As Jasonoff pointed out, the biggest issue here is the fluid viscosity. All DOT 4+ aftermerket fluids are about twice as thick as the MB stuff. I think the conventional SBC system was dropped in the late 2000s as MB now accomplishes the advantages of the SBC system using some clever programming in the ESP, but for proper operation of those you need the thinner fluid.
Yes, Castrol SRF is about as good as brake fluids get FOR TRACK USE ONLY, but unless you flush it every three months and never drive your car in the winter, I wouldn't use it in a daily driver car.
Silicone-based DOT 5 fluid is a big no-no in systems not designed for it as it will destroy pretty m,uch everythign, so if you're absolutely determiend to use something aftermarket, do what Jasonoff did and use the DOT 5.1 fluid... except that there's really no reason to use it over the OEM MB DOT 4+ fluid as their characteristics are the same and the OEM fluid won't bugger up your ABS pump, harden your seals or make the hard brake lines corrode from the inside.
If it ain't broke - or doesn't need upgrading as is clearly the case here - don't fix it.

Anyway I'm actually one of the owners of Motive Products. If anyone needs a bleeder or anything else we manufacturer send me an email and we'll give you a discount. Cheers
Marco
Anyway I'm actually one of the owners of Motive Products. If anyone needs a bleeder or anything else we manufacturer send me an email and we'll give you a discount. Cheers
Marco
Even if the compressed air was full of moisture, wouldn't the fluid from the bottom of the bottle, in theory, be unaffected?
How does the OEM brake fluid handle the track? And the same goes for the brake lines? I've used Motul
in all my other cars I've taken to the track, will this also be good for the C63? I am a more advanced driver for what it's worth and the car is completely stock with the performance package.
Thanks for any advise!




How does the OEM brake fluid handle the track? And the same goes for the brake lines? I've used Motul
in all my other cars I've taken to the track, will this also be good for the C63? I am a more advanced driver for what it's worth and the car is completely stock with the performance package.
Thanks for any advise!




- stainless brake lines
- high performance brake fluid (Motul RBF 600 or 660 is good, Castrol SRF is probably better but really expensive) to change twice a year at least
- track (higher friction coefficient) brake pads
Good question - the hand pump doesn't compress the ambient air enough to really cause a problem. But I'm assuming you're using a typical air compressor that pressurizes a tank to 100psi or more and then you are regulating the air down to 15psi. It's the compression to 100psi+ that is the issue. Have you ever drained your air compressor tank after use? I bet you get some water coming out of the drain (and rust).
https://www.thecompressedairblog.com...ressed-air-wet
Air / water separators are pretty cheap and also will help keep your air tools in better shape.
cheers
Marco
Do these things really over heat after a short amount of time on the track??
The cooling package includes the following changes:
larger front oil cooler lying
larger wheel arch cooler
custom air guides
Larger air intakes in the underbody paneling and wheel arch right
Custom oil lines for engine and gearbox oil
















