For Shop Owners
OBDII Code List

P0104 MERCEDES-BENZ - Mass or Volume Air Flow Circuit Intermittent

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3 What does this mean?

Possible causes

  • Faulty mass air flow sensor
  • Intake air leaks
  • Dirty mass air flow sensor
  • Dirty mass air filter
  • Mass air flow sensor harness is open or shorted
  • Mass air flow sensor circuit poor electrical connection
What does this mean?

Tech notes

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.
What does this mean?
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Posted and Edit by 06-14-2015