I need to get a heater matrix leak in an Audi 100 fixed. Replacing the matrix would cost more than the car's worth. Do any of the popular radiator welds work? I seem to recall an AA man telling me they used Holts or something.
thanks in advance
Try Bar's Leaks. It's better than Holts and may do the job as long as you have no more than a pinhole leak.
Terry D.
Seconded. If Bar's doesn't do the job, I don't think any additive will. Mike.
In article , Mike G writes
You could always bypass the heater matrix by joining the two pipes together with a short length of copper pipe as used by plumbers.
That is what I've had to do. Unfortunately, the absence of a heater makes driving difficult in the winter months - not so much from the cold as from the interior steaming up.
Hello,
It might work, but one car I had years ago had the matrix BLOCKED up by stuff like that. Due to the age and a bit of crap in the engine, the leak fix had dislodged a lot more and stuck it together in a nice lump. The channels in the matrix are quite small so it can cause havoc. It was £140 for a new matrix in the end. Ford, what can you say!
Agreed - never had a problem with it. Unlike Holt's Radweld, which a) didn't stop the leak, and b) completely gummed up the radiator. Dave
I've never had any trouble with something sold in Halfords as a heavy duty fixer. It is a little phial of small bits of metal covered with some sort of adhesive and looks just like a powder. After flushing out old radiators I usually add about a teaspoon or so to circulate in the water and it has always worked for me, never bunging anything up at all (I don't know if it is slowly grinding bits off the water pump as it circulates but I haven't had one of those fail on me since I started using it.
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.