Gairloch

Again, my fault for not fully detailing the work done (it's been so much!). I have 4 new flexi pipes on the car already in an effort to cure problem. Thankyou for any further advice Best regards Gairloch

Hi, thanks for reply, I appreciate any input. The caliper slides are free, don't think there's a problem there. I should have said in my original post - when the brakes sticks on, if I switch of the engine and press the brake, when the brake pedal is released the brake also releases, as if the vacuum has been exhausted. Oh, and I've also changed the servo valve. Sorry, should have included this information in my original post. Any help much appreciated Best regards, Gairloch

Hi folks Hoping that maybe someone has come across an issue I'm having with the C8 (2004 2.2hdi) and can maybe offer some words of advice. Car failed MOT, needed pads and discs at front, also some rear brake cables. Long story short, I've replaced rear handbrake cables, drivers rear caliper, both front calipers, front discs and pads. Took it back for retest and it failed. The front brakes now binding on the test, in fact you couldnt even push the car - although it seemed ok on way to MOT station. So, after doing some research, I confirmed the cross rod to servo is moving (I cut a hole in passenger side bulkhead so I could see it!), so only thing left (or so I thought) was master cylinder. I changed master cylinder and although the pedal wasn't great after (bit of travel in pedal), it did pass MOT! Hurray! Or so I thought. Today brake started binding again, couldnt get above 40mph, smoke from drivers front brake. Seems like the intermittant nature of the fault was all that allowed me to pass MOT test, and the orginal fault still persists. Now, I've read that sometimes when you change pads and discs you can damage the servo. Seems like when you push the pistons in calipers back you can cause some damage internally. I did have problems pushing piston back at the time,hence why I changed calipers. But maybe I caused the fault when I changed the discs and pads at front? Anyway, I'm thinking of having servo changed, but all indications are that I need to remove engine to do this - a considerable job! So before undertaking this, I'm asking if anyone else has come across this problem, how they rectified it, or indeed if anyone has changed a servo for these symptoms? Is servo failure possible considering the symptoms and the work carried out? Any advice, greatly appreciated Best regards, Gairloch