How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Marty Your Own Question
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53984
Experience:  Bosch Certified Master Tech. Over 35 years experience.
Type Your Mercedes Question Here...
Marty is online now
A new question is answered every 9 seconds

I have a 97 e300d check engine is on and check engine

Customer Question

I have a 97 e300d check engine is on and check engine electronics light. Diagnostic test says the map sensor needs replacement. Where is it ? I can't find a part listed for map sensor on this car!
Submitted: 1 year ago.
Category: Mercedes
Expert:  Marty replied 1 year ago.

Hi, the map sensor is located on the back firewall. I've attached a picture below. Make sure the rubber hose to the sensor is intact. If the hose is split or disconnected it can also set the fault code.

Please don't forget to rate my service.