Are BMW having similar rad problems? The Morgan rad....is it the same as a BMW ? I doubt it due to fit in the car. It is likely to have a similar cooling capacity spec (same engine) with, perhaps, modifications to deal with different airflow.
Where exactly are the leaks? The core, the tanks, the pipes, the hose fitting? How much vibration damping is there? What pressure is the system working at?
I would guess MMC have/are looking at these factors.
If the leaks are at the hose mounts then how many beads are on the rad pipes and is a sealant used?
Are the rads pressure tested at manufacture? In the factory I worked in every rad went through a test process for leaks. Mainstream BL , small manufacturers ( (JCB, London taxi, Caterham, special MOD vehicles and many more).
These CX problems look like a recurrence of the early M3W problems.
Who is troubleshooting the problems? What is the relationship to suppliers for quality?
