2002 Seat Leon Problems

i have had the rear axle replaced on my leon and now i have no breaks. I have been over all the work and cant finf why my car has no breaks i have also bleed the breaks and still no joy

When I am at lights or just sitting in traffic my engine is hunting from 800revs to 1200revs, I have changed the mass metre and oxygen sensor but it did not fix the problem anyone help.

car missfires all the time,catilyst ratilling fitted new cat,and a new air intake hose still missfiring, any ideas.

When cold if you try giving the car too much revs it seems to hang back, but when warm the cat revs well and you can feel the turbo kick in

Just replaced the radiator and now getting a mist of vapour when swithcing heater blower on, suspect the heater matrix has blown, anyone replaced one of these? how difficult is it, any tips?

I have a 2002 SEAT Leon Cupra 'R' (210) and have been having intermittent starting problems recently. I unlock the car with no problems, put the key in the ignition and when I turn to the first stop the dash lights etc come on as normal but...