1989 Mercedes-Benz 560 SEC.
Occasionally, the vehicle unexpectedly ceases operation without apparent cause.
It has occurred three times so far, with intervals of months in between.
During the first two instances, I was going downhill at a moderate incline, perhaps 30-40 mph, and I was able to restart the vehicle quickly.
On my third driving occasion, I was traveling at around 30-40 mph on a flat road when I had to halt due to an intersection. The vehicle failed to restart. I tried it three times. My passenger and an unfamiliar individual propelled the vehicle for around 100 feet, after which I attempted to restart it while it was moving, and it successfully ignited this time! I was preparing to summon a tow truck when all caution lights on the dashboard illuminated.
Is this a recognized issue? What may it be?
I previously informed my business about this, but they said that it would be difficult to locate due to its infrequency. (Indeed, you do not articulate)