| Well, after a week of triaging by the mechanics as well as back and forth with their German head office, as expected, they said it is the fuel pump. As such, they put in a new one and that is the end of the story.
The take away on this is, who the hell designed and manufactured this pump? The failure rate is way too high and it is not fault prove or tolerant. This piece is mission critical and I expect a premium piece since I paid premium price for the R Class CDI.
Here is what I learn from this incident when a diesel engine stalls ...
#1. Fuel pump relay heating up and failing.
#2. Ignition coil heating up and failing.
#3. Fuel pump failing.
Need fuel pressure monitored until it fails. Check resistance of ignition coil.
LOL | 
