My heater matrix problem is now so bad it looks like my car is on fire when driving.

 

Both windows are down and shes pumping out loads of evaporated antifreeze.

 

I have been advised to try something called Novastop . It works by thickening up the coolant. Its supposed to work and dosent damage the internals like rad weld.

 

Any thoughts?

My heater matrix problem is now so bad it looks like my car is on fire when driving.

 

Both windows are down and shes pumping out loads of evaporated antifreeze.

 

I have been advised to try something called Novastop . It works by thickening up the coolant. Its supposed to work and dosent damage the internals like rad weld.

 

Any thoughts?

 

Roy,

 

Don't think anything other than a matrix swap is going to sort out your problem mate ... Personally, I would never put anything in the coolant - you know how sensitive our cars are to overheating, etc ... I've never heard of Novastop so can give you advice on that.

 

Regards,

Not sure if it's possible on a Zed but on a TR7v8 I cut the matrix out of the loop by joining the heater feed pipes together where they came out of the engine. OK no heat, but you are losing coolent via your matrix and that can't be good for the engine.

Barryds fix will work, I think james300 has some photos of when he did it to his, its a good temp solution but will mean a cold car.

 

I would not put any thickening additive into the coolant, these are extremely complex engines and something like that could leave you with a bill for thousands

Yeah JeffTT bypassed my matrix when it went. You can do it without being in the cabin. Disconnected at the begining of December and repaired at the end of Febuary! Just the 2 months when you need a heater!!!!!!!!! :shock:

Just tried the Novastop and it worked.

 

You have to do a full coolant change and add a small bottle of the mix in between filling. Leave the car then running for 1 hr. (It took 1 hr 10 for me, before the cabin cleared up). It is supposed to be used especially for things like the heater matrix when difficult to get at. Local mechanic recommended it as he has been using it on Citroens for some time with great success. Its only just on the market.