I wanted to ask about this, my heaters are really sh!t, its a half hour+ run to work and they are still not heated up, despite sitting in the car park for a good 15 mins scraping etc.
Now my mums got a 1.3 Mk2 C reg fully original and hers are mint!
but mine has got a GTI interior? Any ideas?
Does it work at all? Are you using it correctly? have you got the vents in the open position? Does it blow cold air? Check that the foam has not blocked the vents. Failing all of that it's either a replacement valve/copper pipe or heater matrix.
It blows, and it does get warm it just takes ages, works best on number 2 (the little heater sign), and both switches slid to the right.
It blows cold air but they are not very powerful, and Ive tried the vents in all different positions.