Looks like the fuel pump is bad. I put 12V and ground directly to the terminals with a jump box and it just made a faint buzz sound. Fuel presure gauge didn't move. What should I replace it with? Pierburg, Bosch, this one on Ebay: http://cgi.ebay.com/ebaymotors/Mercedes-Fuel-Pump-190E-C220-C280-E320-SL320-S500-911_W0QQitemZ110356516909QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item19b1c2d02d&_trksid=p4506.c0.m245&_trkparms=65%3A12%7C39%3A1%7C72%3A1171%7C240%3A1318