Hi,

I have a '99 ML 320. Yesterday, the engine died while waiting for a red light. It started after a minute or two.
Today, it did not start in the morning, the engine cranked. Then it started and died after left idling. Then impossible to start again. Is it the faulty crankshaft position sensor? Where is it located.
Or is it uel related, like fuel filter or pump. The truck was upgraded to a new style fuel filter 3 years ago?

Please help