Quality starts at the design stage. Extra effort early in design can then anticipate and modify that initial design to prevent problems.
A B48 or B58 engine in a Morgan is a significant difference to being in a bigger/heavier BMW. Didn't MMC have an approved by BMW "Morgan map" for the ecu? Add in different engine bay conditions of airflow in and out . Under bonnet temperature in a Morgan can get quote high! You can see heat haze come out of the louvres ( if you have them).
I assume MMC would log failures and investigations of them to help show causes. Component batches, procedures for assembly including checks, methods designed to prevent errors etc. Liaise with BMW to help resolve it.
the brake safety recall was based on a low incident rate. Safety critical so a very high requirement to fix. Rad failure is a lower safety issue but damaging to the brand and costly to fix. Hopefully the new rads will prove to be resilient.
High mileage testing? I am happy to volunteer my services as a test pilot/mule .👨🚀🐎
