W202 (1996) Brake pads replacement

[shermans]

I am having trouble trying to push back the brake piston to install new brake pads. I do not want to force anything. I have tried leverage but I cannot get any movement. I could try a C-clamp but am worried about using too much force.

Is there any way to relieve the pressure to make it easier ? I thought there might be a bleed valve on the caliper, but there is only a threaded straight connector from hose to the caliper - nothing to which for instance a bleed hose could be attached. So how do you bleed these brakes ?

The caliper is a large single piston type made by LUCAS.

Someone on this forum suggested clamping the hose and opening the bleed valve to ensure no dirt in the hydraulic fuel goes back into the ABS, but there does not seem to be any bleed valve, so that I cannot even do that.

Any suggestions please ?

 

[Xtractorfan]

The caliper should have a bleed nipple, someone may have broken it off previously... not uncommon.. its ok to use a c clamp to puch back the piston, place it central and use one of the old pads across the front of the piston to cushion the clamp against.. it may initially be tight simply becuse you may have levered it off the square.. the pad across the front of the piston will help realign the piston and bore..

 

[shermans]

Thanks. It worked fine. However, unfortunately one of the two "sliders" on which the caliper floats in and out has seized and the head snapped off. With some heat, managed to get the stem out. I hope that I can buy a new one, failing which I will have to get it welded.

 

[Xtractorfan]

Theres always one isnt there... Im sure they're available, best to use the new one

 

[shermans]

Got a new one - I won't tell you the price, cheeky **** ! Haven't they heard there is a recession ? At least the VAT was all of 20 pence less !

Thanks