Brake bleed
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,237
Likes: 1,802
From: Colorado
G550
If you have access to Mercedes WIS/ASRA, you'll find the procedure there. I did my G550 a couple months ago using a Motive kit. Took about 3 hours to complete, with most of the time being removing and remounting the wheels. Brake fluid is a bit nasty to work with, and you need to avoid spills. I posted some notes in the W463A forum that you might find helpful.
Member
Joined: Jun 2019
Posts: 96
Likes: 25
From: Canberra, Australia.
C63 AMG Coupe
G'Day Folks,
McFancy14, I have my Mecanic, replace the barake fluid, every 2 years, (as per the service specs).
I don't go out of my way to get this done, I get them to do it, while they have it up on the hoist, doing some other service, etc.
FYI. The reason it is a good idea to have the old brake fluid completely flushed through the system is, brake fluid is Hydroscopic (it absorbs water, out of the atmosphere. At the Master Cylinder).
This water can cause internal parts of the brake system, to corrode/rust ............ so, it's a cheaper and smarter, long term alternative to being neglectful.
I do this on all my vehicles, not just the Merc.
Hope that helps.
Regards
Homer
McFancy14, I have my Mecanic, replace the barake fluid, every 2 years, (as per the service specs).
I don't go out of my way to get this done, I get them to do it, while they have it up on the hoist, doing some other service, etc.
FYI. The reason it is a good idea to have the old brake fluid completely flushed through the system is, brake fluid is Hydroscopic (it absorbs water, out of the atmosphere. At the Master Cylinder).
This water can cause internal parts of the brake system, to corrode/rust ............ so, it's a cheaper and smarter, long term alternative to being neglectful.
I do this on all my vehicles, not just the Merc.
Hope that helps.
Regards
Homer
Senior Member
Joined: Jan 2023
Posts: 291
Likes: 85
W167 2021 GLE63S, W223 2022 S580
Replaced ours. I did it myself as I wanted / needed to clean the brake dust off the wheels and calipers. I have a large compressor in the garage and I have a vacuum bleeder so I found it easy. Just be sure to lower the car slowly or it will set off an impact detection sensor.
