Operation CHARM: Car repair manuals for everyone.

Manufacturer Code Charts: 3116


[1] Check component Mass air flow sensor. Left: Offset drift


Possible cause:

- B2/6 (Left hot film mass air flow sensor)
Affected functions:

- Power generation

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Test 1: Check component Hot film mass air flow sensor.

1. Check component Hot film mass air flow sensor.

Test 1.1: Check component B2/6 (Left hot film mass air flow sensor).

1.1. Check component B2/6 (Left hot film mass air flow sensor).
Check signal of component B2/6 (Left hot film mass air flow sensor) via actual value with engine OFF.
Test prerequisites

- Ignition ON
- Engine not running
- The air extractor system may not be connected to the exhaust system during the test.
- The hot film MAF sensor must have no air flow during the no-air test.
- Battery voltage is OK.
Status of associated actual value
- Engine speed:Warning! Communication with ECU required.