[Paullap]

Hi I have a 1998 996 3.4 C2 tiptronic, First of all when I bought the car after it has been standing for about 5 years I think, It had no brakes, after inspecting the system the brake pipes where very rusty, so I have now replaced the complete system, Then I had problems with the bleeding, so I fitted a new master cylinder, and eventually I got the brakes to work. The brakes seemed ok, Yesterday I took it for mot and all was well, Until it went on the brake roller tester, the brakes where ok , But when I wend to drive it away from the Mot station the rear brakes had locked on, I left it for a few minutes and it released, I managed to get it home without using the brakes hard, So when I was on the drive I pressed the brakes hard and the rears lock solid again, left it a while and got it on the ramp, I pressed it hard again while on the ramp, and I tried to get the pads out. no way stuck in with the pressure still on. I then cracked open the bleed nipple and the pads came out, The caliper pistons seem free and fine, So I am going to go after the brake booster, I think it it holding back.

Any thoughts?.



Paul