Hello guys, new to this forum. Basically my father passed away and left behind a Mercedes 380SEC 1984, just 68000 miles. There has been a issue where the car doesn’t want to start and when it eventually does power goes in D and cuts out then won’t start. I’ve had the RAC come and take it to a mechanic. Changed spark fuel pump etc and still the same. The mechanic is saying that there’s no spark when starting the car and could be a coil somehow, but would this cause this? A few people have suggested fuel pressure etc but the mechanic is struggling with the age of the car. All help with greatly appreciated thank you 
