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Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53165
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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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.

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Marty

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