Hi folks 2004 Octavia 1900 TDI 90

As a truck fitter for way to long, my question sounds stupid to me.

How ever here go's car stationary put your foot on the foot brake (very hard) with engine running and pedal goes'very near to the floor

To me that seem's wrong.It has discs on the front with new discs and pads fitted the rear brakes are drum with new shoes and everything nice and free

I have tried bleeding the brakes no air comes out any ware.

to me the brake pedal travelling so far is wrong.I should add that the brakes stop perfect and are way over what's required for mot on roller test.

I have tried a few other Skodas and they all seem the same, I have even been on main dealer used cars and they are not much different than my own car.

Any one able to give me any information on this one would be very much appreciated

I would also like to thank any one in advance for any information provided

Thanks again Skodaman 61

If you saying that with constant force on the brake pedal, it continues to sink until it reaches the floor, then you have a leaking brake master cylinder.

How much travel do you have?

If you saying that with constant force on the brake pedal, it continues to sink until it reaches the floor, then you have a leaking brake master cylinder.

How much travel do you have?

Hi

Normal use about 1 inch

Stationary engine running about 3 to 4 inch's pressing very hard

I am not saying it reach's the floor probably 2 inch's above floor

Thanks for your help

Skodaman 61

Yeah id say master!

It's called pedal creep and is often found in diesel engined cars. The MOT manual, here, section 3.3 advises that as long as it doesn't reach the floor it is not a reason for failure.

I don't think there is anything wrong. You don't need to press the pedal that far to get the car to stop. If you pressed the pedal that far whilst driving, the ABS would have kicked in to prevent lockup. In other words you would have pressed the pedal too far.

If there is any problem (and I don't think there is) it is with the brake servo. With the engine off, press the pedal and release, 5 or 6 times. The pedal should go hard as any vacuum is exhausted. With your foot on the pedal, start the car. You should feel the pedal give if all if OK.

It's called pedal creep and is often found in diesel engined cars. The MOT manual, here, section 3.3 advises that as long as it doesn't reach the floor it is not a reason for failure.

Mine dont do that!! nor the one i had before that, infact the one before the one ive got now didnt do that!! All diesel

Pedal creep my a"*e!

Its a sealed system, hydrolic and one of the laws of physics is you cant compress a liquid so.............

nothing will move apart from the piston in the caliper untill it hits the disc which isnt far to travel!

Once this happens the pedal wont go any further due to the fluid in the system, which......... you cant compress!!!!

UNLESS there is a leak or the fluid is bypassing the seal in the cyclinder.

two on my cars have done what you talk about, new master cyclinder and bleed through with new fluid and it was fine!

And there was nothing creeping anywhere

Mine does the same. I've bled the brakes, fitted new rear discs and pads, cleaned all of the scale off the fronts and had my local indie bleed the brakes using VAGcom to make sure there was no air trapped in the ABS and it has made no difference. He reckoned that all of the VAG cars with this platform were like this. I can't remember either my A3 or Bora being this bad so at some point I may try a new master cylinder and see if it fixes the problem. Just don't want to spend £70 for a new one just to find that it is still the same.

nope quite normal and as said you could never push it that hard on normal usage. It is caused by the large servo and the vac pump pulling constant vac on it, compressing the pads harder and expanding the pipes a bit. not as bad on the petrol cars usually

virtually every diesel octy I have driven will do it at standstill and even worse with new pads in

they will do it a bit, but it shouldnt be excessive.

One of the reasons why i fitted 4 pots, to solve this problem

I agree also. Many modern cars especially diesels' brake pedal will gradually creep to the floor if depressed hard with the engine running. I've experienced it many times while testing vehicles, and the MOT manual was updated fairly recently recently to advise us accordingly. This condition alone is normal and is not a reason for rejection. Also new brake pads do take time to bed in and very often feel soft at first. You may find after 100 miles or so the pedal feels much better.....