I did a rebuild on my engine last year and really do not want to take it out again...
Tony, you definitely do not have to take the engine out to change either side matrix. You do have to strip the dash though which is a big job.
... also very difficult to see under the bonnet how to release the water pipes.. help would be great..
many thanks
The clips have a 'button' which you press in, which then releases the hose lock from the pipe and you can pull the hose off. Effectively the pipe has a groove around it near the end and the hose/clip locks into this groove. The important point if you remove any of these type joints, is to really make sure they have locked in again when refitted. If they are not locked, the hose can blow off when the cooling system comes up to full pressure, and you loose your coolant! I have seen vehicles towed in where this has happened. The owner thought the hose was tight, but it wasn't locked properly.
Roy