Talk Morgan Forums Morgan Sports Cars Morgan Plus Four, Supersport & Plus Six (CX & CXV Generation Vehicles) Safety Recall - Brakes

As others have said, the 3 month warranty extension is poor compensation. If MMC are serious about maintaining / repairing their reputation then they need to look at this again.
The only other observation I would make is what lovely people you are on here! Too lovely. So many posts saying don’t be too harsh on MMC and be nice to the dealers because they have stock they can’t sell and we should feel sorry for them.
Whilst I agree there is no point blaming or having a go at anyone, both my dealer and MMC have my money. They are in a lot more control of the situation than I am and the dealers will have a lot more influence over MMC than I do. The only thing I have is c.£80k of unusable car sat in the garage. So right now the only people I am feeling sorry for are myself and the other 1273 people in my situation.

Lets hope that a permanent fix is found and faith in the product restored.

I just feel so sorry for PiGo (above post) having to hand his car back to the dealer permanently as after 8 radiator changes he has had to give up on his dream Morgan.

Unlike others this was his only car and consequently it needed to be functioning all the while as he is still working, he has had to get a tintop daily to replace it as a result, very sad and tbh at 80k an extremely bad joke at his expense.

When the first batch of radiators began to fail, engineers would surely have looked at the reason why this had occurred, either poor build quality or badly designed rads, if it was engineering fail the only long term fix would be to redesign the rad, BMW would have provided all the relevant tech specs regarding cooling. As it effects bother Plus Four and Plus Six it looks more likely to be poor quality material, they would have been pressure tested and past the test, so I believe the fix is a new header which is only part filed this would probably allow for expansion of the coolant, leading me to think increased pressure in the rads caused the rads to split.
The cost to MCC to replace all these rads under warranty is huge and the total cost for both fixes will probably result in future model releases put on hold.
What I don't get is why the cars that have had replacement rads have to go back to the factory?

I have not knowingly had any radiator problems - does it affect Plus 6s or just Plus 4s?

Is it part of the dealer fix along with brakes or will rads only be fixed if they leak?

The question really Mike is what happens to the leaking radiators, which are "almost new". Do we think that there is a skip full of faulty radiators, or do we think that repaired radiators are refitted? I don't know the answer, but one option is much less costly than the other. Perhaps the final solution radiator is a brand new approach which is to be installed in all CX Morgans.

Let's not forget that the plastic tanked radiators in the Trads were prone to fail, but after a much longer period. A known issue with Trads and the mountings were eventually modified in an attempt to stop the fails. Not the same issue of course but another illustration of how MMC manages faults. This whole thing will test MMC finances and all we can hope is that they get through it intact, and learn some lessons.

Could someone enlighten me as to how the radiators are actually failing? Are they cracking due to vibration, or bursting due to excess pressure?

If the former, could the rubber mountings not be improved, and if the latter, could you not simply fit a vented or low-pressure cap on the expansion tank to stop the system over-pressurising?

If I had one of the affected cars I'd much rather keep an eye on the coolant level than drive around fretting about whether the radiator's going to spring a leak again.

My understanding is it's a combination of both

David, it's both CX models, some like you are on the original, some unfortunate owners have had multiple replacements

It’s the radiator issue that concerns me most, it looks like the root cause of break cylinder problems have well investigated and a proven solution proposed. I am not aware of any south testing or positive expectancies with the rad mod (swirl pot), just lots of repeat failures.