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  1. M

    Can you change Y74 (Pressure control valve) on a CDI without changing the rail?

    Guys, I get confusing answers on this. MB shop says I have to change the whole Rail (with regulator) and that a separately purchased regulator cannot be correctly put on an existing rail. But I see the regulator can be purchased separately. I need to change mine (06 320CDI) so can anyone shine...
  2. M

    Need help on CDI Fuel rail Pressure error

    Hey guys, been a while since I was here. Got a new problem on my 06 E320 CDI. It now has 313k miles. It's going into Limp mode and getting a P2047-1 "Rail pressure monitoring via volume control valve The rail pressure is too low". The car started this all of a sudden and left me in Limp mode on...
  3. M

    06 CDI cranks, won't run

    Hey team, need some wisdom on my CDI, 290k miles. Engine was running fine at idle, turned it off and then went to start it back up and it won't. Cranks over fine and comes close to starting (chug chug usually to till the starter drops out thinking its running but it never rully runs). It will do...
  4. M

    No boost on my e320 CDI

    Hey guys, bare with me for the background on this. My inline 6 has 260k miles. One day she was fine, the next morning I have a loss of power and a CEL. She runs ok but no boost when you hit the pedal. It's never gone into limp mode that I can tell; I can drive it at 80MPH on the road but with...
  5. M

    Rear Differential noise

    Hey guys, my 06 320CDI (250k miles) has a noise in the rear. I got on the road from Savannah Georgia yesterday headed home and all at once, I started hearing a roar/grind sort of noise coming from the rear. As I drive home 4 hours, the noise would come and go with no particular relationship to...
  6. M

    Need e320 CDI injector help

    Hey team - new here. I may be in the wrong place but I didn't see a specific diesel section. I'm struggling with what I thought was a simple job of changing the injector seals on my 06 CDI. I started with the first one and its still an ongoing process. After pulling the first injector and...
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