Mercedes Benz repair: Prime fuel pump, relay switch, 240d


Question
We have a 300 SDL.  Where do you "prime" fuel pump, as there's nothing visible as was in our 1982 240D?

We had episodes of stalling on highways where there was incline in the road...  when driving on level highways and town streets, there's been no stalls.  We've changed fuel filter, checked for fual pressure of the fuel pump.... and seems to be pumping sufficient fuel...

Anything else we need to check before or after priming pump when we find it?  

We've read other postings, but nothing "specific" to what we are trying to problem solve...  

thank you.... you guys are great!!!

Answer
jump your fuel pressure relay switch, you could have a bad injector or you regulator may be shot. as far as priming the vehicle
check out this thread
http://www.benzworld.org/forums/w126-s-se-sec-sel-sd/1320076-911-help-did-i-ruin...
I generally am not familiar with the diesels..maybe someone on the site can help you out there