Hi,
I have a Mercedes R Class 2007, 36,000 miles on the clock.
With the engine running, and the car stationary, if I press the brake pedal hard, and keep a constant pressure it will carry on moving until it hits the pedal stop?
If I pump the brakes three or four times, and then try and do the same, it still does the same.
The brake fluid is full, there is no fluid leakage on any calliper that I can see, I am pretty sure the brake fluid has never been changed as it is only 3.7 years old?
Is this normal? I am worried that if I had to do an emergency stop it would lose brake pressure, although I went out and tried a quick stop and all seemed okay?
I have also noticed that before I start the car in the morning the brake pedal is absolutely rock hard, I guess because there is no vacuum pressure in the system, but I am sure when I first got the car that there was some residual pressure which would work for one or two presses?
Anyway, am I worrying about nothing, or is this slightly suspicious?
Rob.
I have a Mercedes R Class 2007, 36,000 miles on the clock.
With the engine running, and the car stationary, if I press the brake pedal hard, and keep a constant pressure it will carry on moving until it hits the pedal stop?
If I pump the brakes three or four times, and then try and do the same, it still does the same.
The brake fluid is full, there is no fluid leakage on any calliper that I can see, I am pretty sure the brake fluid has never been changed as it is only 3.7 years old?
Is this normal? I am worried that if I had to do an emergency stop it would lose brake pressure, although I went out and tried a quick stop and all seemed okay?
I have also noticed that before I start the car in the morning the brake pedal is absolutely rock hard, I guess because there is no vacuum pressure in the system, but I am sure when I first got the car that there was some residual pressure which would work for one or two presses?
Anyway, am I worrying about nothing, or is this slightly suspicious?
Rob.