Brake bleeding question
#1
Junior Member
Thread Starter
Brake bleeding question
Has anyone here flushed brake fluid on a 2015 GLK? Any issue using a vacuum instead of pressure?
I completed most of the B0 service today on my wife's 2015 GLK250. Oil, filter, cabin filter, air filter, checked fluids, added DEF. I still need to change brake fluid, and I'll do that in a week or 2 when I take off the snow tires.
I have both a Motive pressure bleeder and vacuum pump but generally prefer vacuum as there less chance of a leak spraying brake fluid around under pressure.
Comments?
I completed most of the B0 service today on my wife's 2015 GLK250. Oil, filter, cabin filter, air filter, checked fluids, added DEF. I still need to change brake fluid, and I'll do that in a week or 2 when I take off the snow tires.
I have both a Motive pressure bleeder and vacuum pump but generally prefer vacuum as there less chance of a leak spraying brake fluid around under pressure.
Comments?
#3
Junior Member
I did it with the mityvac vacuum, it took a while to do it this way, fluid was flowing very slow, i think next time im going to use pressure. Plus the old fluid looked almost identical to the new (both MB fluid), I think a different color fluid would have made think much easier too.
#4
Junior Member
Thread Starter
Thanks SAVZ. I did the job yesterday, using my Motive pressure pump. No issues encountered.
I agree about the colour difference, or lack of difference. The wife's GLK is about 22 mo old, and 55,000km so the old brake fluid still looked like new. I miss the old ATE Super Blue brake fluid. Alternating between the Super Blue and the regular amber Typ 200 really showed clearly when you'd pushed the old fluid through with new.
I agree about the colour difference, or lack of difference. The wife's GLK is about 22 mo old, and 55,000km so the old brake fluid still looked like new. I miss the old ATE Super Blue brake fluid. Alternating between the Super Blue and the regular amber Typ 200 really showed clearly when you'd pushed the old fluid through with new.
#5
Junior Member
I remember that I have read a post in somewhere (can't find it now) that newer MB models need Xentry (or MB-specific OBD II scanner) to command car computer to flush the whole brake fluid. Is it true? Mine is 2013 GLK250 and thinking to bleed it soon and wondering if the old school method would be okay with it.
#6
MBWorld Fanatic!
To bleed the system after something like a caliper change, you should be able to do it the "conventional" way. If you want to flush the system of all old fluid you need to be able to trigger the ABS system.
Trending Topics
#9
MBWorld Fanatic!
#12
Junior Member
Hmm that sounds like we should go to dealership service or MB-specialized shop for brake bleeding… like for changing transmission oil? I don’t think that local brake/muffler shop would follow the right process for ABS (or even don’t have a device to activate ABS).
#14
MBWorld Fanatic!
No, not that I am aware of.
Don't confuse bleeding, which is unchanged from the advent of hydraulic brakes, with flushing or changing the fluid. To get all the old fluid out you need a way to activate the ABS module. I should think that any independent business that services Mercedes on a regular basis would be able to do this. Also, I would expect at least some of these DIY scanner systems could also do it.
Don't confuse bleeding, which is unchanged from the advent of hydraulic brakes, with flushing or changing the fluid. To get all the old fluid out you need a way to activate the ABS module. I should think that any independent business that services Mercedes on a regular basis would be able to do this. Also, I would expect at least some of these DIY scanner systems could also do it.
The following users liked this post:
Odd Piggy (09-02-2023)
#15
MBWorld Fanatic!
#17
MBWorld Fanatic!
Traction control utilizes ABS, and yes, if it activates that will circulate the fluid. If you have snow and/or ice available you can activate it yourself...