98 1.9tdi front brake pads replacement - carlover
Hello,
I was going to replace my front brake pads but while reading a DIY guide on VW Vortex it mentioned a special tool that you need to push back the caliper and twist it at the same time.

I was going to use a G-clamp but this would only push the caliper back ..i.e not do the twisting part.

Would using a G-clamp damage the caliper?

Also i saw a mechanic taking the lid off the brake fluid container before when replacing my back brake pads. I didnt see this mentioned in the guide. Do I need to do this?

THANKS,
CARLOVER
98 1.9tdi front brake pads replacement - maltrap
If it says that the pistons have to be screwed back in then thats what you have to do, not necessarily with a specicl tool. DO NOT try to force back with a G clamp. When you do this brake fluid is forced back into the master cylinder hence the removal of the cap.Perhaps you should get yourself a Haynes manual or have the job done proffessionally its not the job to do if you're "not sure".
98 1.9tdi front brake pads replacement - Tim Allcott
I believe machine mart sells a suitable tool, and it's not too expensive.

98 1.9tdi front brake pads replacement - Dynamic Dave
I could be totally wrong here, but isn't it only calipers that also operate with the handbrake that need their pistons winding back in? As the handbrake generally operates the rear brakes (with the exception of some Saabs) then the front brake pistons should just push back in.
98 1.9tdi front brake pads replacement - Hamsafar
I think the fronts need to be pushed in, only the rears need to be screwed in, at least that's the case on the one's I have seen. You have to take the cap off on all cars and draw out excess fluid as it rises in the reservoir. My preferred method is to loosen the bleed nipple and attach a bleeding kit and let it squirt out, then bleed the brakes properly with a fluid change when complete, this prevents wear particles in the calliper from being pushed up inside the brake system.

Edited by Hamsafar on 18/06/2008 at 21:11

98 1.9tdi front brake pads replacement - carlover
OK Thanks for the info! Might give it a go!

98 1.9tdi front brake pads replacement - DP
My preferred method is to loosen the bleed nipple and attach
a bleeding kit and let it squirt out then bleed the brakes properly with a
fluid change when complete this prevents wear particles in the calliper from being pushed up
inside the brake system.


And also prevents the master cylinder seals reversing themselves, which some cars are prone to if the brake fluid is forced 'backwards' through them.

Our Scenic has screw in rear caliper pistons, but conventional 'push back' type front ones. I think this is fairly standard.

Cheers
DP

Edited by DP on 20/06/2008 at 11:26

 

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