stevemfr

Hi Shane, Hard start when hot is a typical sign of an aging injection pump on the M51. Easy test is to run the engine till hot and then cool the pump with a garden hose (maybe wait a couple of weeks for warmer weather before turning your drive into an ice rink :-) ). Should start easily then. Do check the intercooler to intake manifold pipe very carefully as mentioned above. The delamination is not easy to see at times. I'll also add to your thread on chipping this motor here: chipping the DSE makes it a real pleasure to drive. The weakest point of this motor tho is the cyl head. The additional thermal stress placed on the head due to chipping/playing with the boost will cause cracks in the head - usually between the exh valve seat and the pre-chambers. IMO still a very worthwhile mod, tho. I regard cyl heads on my DSE as a 100k service item... cheers steve

Sorry for the late reply - came from another board. Is the reason you asked this question because BMW do this with the 3.0L M57 motors? Is there a TSB from BMW on this (could you post or post the jist of what it says?)? Does this solve the turbo failure problems? This looks like the same breather as on the M57 in the RR TD6. No, it is the TD6 in the FFRR (L322). It's the TDV6 in the RRSport and Disco. Completely different motors.