» » »

Mercedes-Benz Q&A

Ask Your Question

1992 Mercedes-Benz 400SE Question: how to test or check smog pump (air injection pump)?

 

Question

palrepair, Gary, IN, October 13, 2010, 10:38
 Rookie

failed emission test,clucth does not appear to be working

1 Answer
Flag This
  • Answer #1

    Greg-Julia from Auburn Foreign & Domestic Car, October 13, 2010, 16:30
    Profile_thumbnail
     Journeyman

    Pump should have power when 1st started cold. If not check for faulty relay or damaged wires. Mercedes has had issues with the insulation falling off the wiring. Good luck!

    Reply
    Flag This