Hi all, I've got an Audi A6 that has a slight leak in the passenger side heater matrix - when the air con is blowing anything other than cold air, it steams the windscreen up. The car loses coolant slowly (like 400-500ml in
12,000 miles).Would radweld or similar help stop the leak? The car isn't worth spending the money a replacement would need so a bodge is preferred, even if it leaves the heater matrix half blocked and not able to kick out much heat. As it stand over winter the air con has to be on cold, which is worse than only being able to blow slightly warm air.
Any other ideas before I give this a try?
Thanks.