End of Nov 2018 I took the Mini for tire rotation and told the garage I was taking a road trip and to check all fluid levels including the oil. When I picked it up they confirmed this was done. The oil change was due for the end of Dec. Jan 3 I check the oil level and the dipstick was showing very low oil level (540 miles driven). I opened the reservoir and it was empty! There were no visual oil leaks. Is it possible for the oil level to go down so much if they had really checked the oil levels at the shop?
On Jan 3 the performed and engine oil system flush and synthetic oil change.
In April the car started to run rough and cold start issue. Engine light came on and towed to garage. They said cylinders 1,3,4 were misfiring. Replaced all the coils and spark plugs. They also performed a throttle body/fuel injection service.
Early May the car still having cold start issues. Towed back to the shop. This time all injectors were replaced and valve cleaning.
Picked up the car on a Friday and by Tuesday the car was having the same cold start issues. This time they want to replace the high pressure fuel pump and purge valve.
Are all these issues related to the low oil levels? What damage was caused to the engine? Is there something else going on with the engine? It's become a money pit!