First, the turbo is electronically controlled on that car, not mechanically. If the EGR doesn't work correctly, the computer will dump the turbo. Ditto for the intake resonance flaps, if they don't move properly, the computer dumps the boost. If the vac lines are "BBed", there's the main reason you don't have boost.
Take the BBs out, check all the lines to make sure they hold vac, and verify that the switchover valves (transducers) for the flaps, the turbo, and the EGR are OK, and that the servos for the turbo wastegate actuator and the flaps are OK and working. Verifty that the EGR valve operates correctly with vacuum, and remove the plate. Likely you will find a bad transducer or two (turbo and EGR, maybe the intake flap one) or a bad servo. You can only bypass the computer by replacing the turbo with a mechanically controlled one, and I'm not sure that will work well as the intake flaps still won't work right. Peter _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
