Get the latest advice about your car

Get Started
Advice » Problem Reports » Faulty Mass Air Flow Sensor Causing Erratic Engine Operation and Poor Fuel Economy

Problem Reports

Mercedes-Benz S320

Report: Faulty Mass Air Flow Sensor Causing Erratic Engine Operation and Poor Fuel Economy

Mercedes-Benz S320 Problem
6 Reports
Me Too Edit

Model Years Affected: 1994, 1995, 1996, 1997, 1998, 1999

Verified

A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues. Since this sensor measures the actual amount of air entering the motor, when it fails, the engine control module (ECM) takes the wrong information and delivers incorrect volumes of fuel to the cylinders.

Add to My Checklist
Find a Shop
Related Items:
  • Air Conditioner
    Hello all, I am having a problem with my AC . I turn on the AC and some air comes out but not...

    Q&A > Mercedes-Benz > 1996 Mercedes-Benz S320

  • where is the fuel pump located if not in the gas tank
    where is the fuel pump located on a 1995 s320 benz, if it is not in the tank

    Q&A > Mercedes-Benz > 1995 Mercedes-Benz S320

  • My s320 1999 runs rough when the engine is cold.
    When I turn on my car in the mornings for a few minutes it tries to turn off and runs rough but then after (2-5) it runs Okay. This only happens when it is parked for like over 8 hours. It is mo...

    Q&A > Mercedes-Benz > 1999 Mercedes-Benz S320

  • Air Recirculator
    When air recirculator is on it blocks air flow. Just got AC recharged,regulator installed, and...

    Q&A > Mercedes-Benz > 1995 Mercedes-Benz S320

  • Car developed a miss-
    I washed off the engine (cold) with the garden hose after replacing the brake pads and now it runs rough and the "check engine" light is on. I dried all electrical connections including removing,cl...

    Q&A > Mercedes-Benz > 1997 Mercedes-Benz S320

Ask a Question