Bmw 525i e39 DISA valve test - good or bad?
This is my first time dealing with bmw engine so I'm asking: that's how this valve should behave?
For a few days the car won't start for no obvious reason. Was OK one morning when I started it to just to move the car to another parking spot. Came back after work to take the car and do some shopping and completely dead. Put the diagnostic equipment and don't see any additional error apart what already had when was fine...
Any advice?