In December I purchased a 2001 ml320 with 75,000 miles not knowing what services had been done I replaced air, oil, fuel filters, plugs. it ran fine with an occasional flutter at idle and stall when cold. then...wednesday morning, no start, felt like no fuel, bought and installed a fuel pump, nope! installed a crank sensor and fired right up! I needed the pump awyway do to the incorrect fuel gauge readings. then it wouldn't sift out of park[!] researced and found the "pen" bypass, picking up the brake light switch later today I just wanted to thank all of you for the info on everything I would still be scratching my head as to were to start if I never found this site. I wish I didn't have to log on so often but in some sick way, I guess I kinda like this detective work on the car (I mentioned sick didn't I).