|
I took my '18 M5 into dealer. They ran some pressure tests on the high and low pressure fuel pumps. They found critically low pressure from the low pressure pump on startup. They replaced the low pressure pump and left the high pressure as is. Apparently after the change they retested the pressure and it was within constraints. Thus far around 1 month out I haven't had the problem recur. Note that they didn't need to recreate the stalling problem itself (fortunately).
|