Brake problem
Thread Starter
Newbie
Joined: Jul 2018
Posts: 3
Likes: 0
From: Northwich. Cheshire
C180 blue efficiency 2010
Brake problem
The Garage claim there's no problem but the brakes are shockingly bad. I have to put my foot to the floor even then it barely stops.
What I want to know is, in sport mode it seems slightly better. BUT when it's in cruise control and I brake while dropping the cruise speed, it's really sharp.
Why aren't my brakes always good?
What I want to know is, in sport mode it seems slightly better. BUT when it's in cruise control and I brake while dropping the cruise speed, it's really sharp.
Why aren't my brakes always good?
Super Member
Joined: Jul 2016
Posts: 502
Likes: 81
From: Newcastle Upon Tyne
W204 C220CDI 2011
If your foot goes to the floor then you probably have air in the brake lines.
Is the brake fluid reservoir at the correct level ?
With the engine running if you pump the brake pedal does it go hard ?
With the engine stopped pump the brake pedal 10 times or so till it goes hard, then with your foot still on the brake start the engine. The vacuum servo should cause the pedal to drop further ?
Sports mode only affects the gearbox and Cruise Control should have no bearing.
Is the brake fluid reservoir at the correct level ?
With the engine running if you pump the brake pedal does it go hard ?
With the engine stopped pump the brake pedal 10 times or so till it goes hard, then with your foot still on the brake start the engine. The vacuum servo should cause the pedal to drop further ?
Sports mode only affects the gearbox and Cruise Control should have no bearing.
MBWorld Fanatic!
Joined: Apr 2016
Posts: 4,765
Likes: 567
From: Milwaukee, WI
2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
Agreed. Both those should not affect braking. My thoughts are also air in the brake lines. Might as well empty and fill with new fluid if the technique above doesn't work.
Thread Starter
Newbie
Joined: Jul 2018
Posts: 3
Likes: 0
From: Northwich. Cheshire
C180 blue efficiency 2010
Thanks but I don't understand why its so sharp in sport + cruise control+ braking.
if there was air surely even this wouldn't be so responsive. Putting it in sport seems to improve the braking.
if there was air surely even this wouldn't be so responsive. Putting it in sport seems to improve the braking.
