Brake pedal pressure

**Karl12347** · 18th December 2010, 16:05

When I drive my Vectra C 2.0dti i am finding that when I first push on the brake pedal it goes all the way to the bottom. If i then release the pedal and press it straight away the pressure returns about half way, then if I release again and press again the pressure retruns to the top of the pedal.

After a few minutes the same thing happens again, no pressure at all.

I have check the brake fluid tank and it is full.

Anyone got any ideas where to start looking?

I have recently had new brake pads fitted front and back.

From the forums I have read so far, people have mentioned bleeding the brakes, or a flipped seal in the master cylinder but I have no idea.

Can anyone please help and point me in the right direction?

**Das** · 18th December 2010, 16:10

I am assuming it was ok before the new pads were fitted?

**markj23** · 18th December 2010, 16:14

how many miles have you done on pads

**Jezzy** · 18th December 2010, 16:19

Have you heard of "diesel creep"?

http://www.brakesint.co.uk/technical.html#techNote202

(And no, diesel creep isn't the nickname of the Fiat employee who designed the 1.9...)

**Karl12347** · 18th December 2010, 16:28

It was like that before the pads were fitted but I had pretty much ran the pads down to the bear minumum.

Have done about 30 miles with the new pads.

Hmmm interesting article about the diesel creep, I am just wondering how long the pedal will be like this as it is not ideal driving having to press the pedal a few times.

Karl