Manufacturer Code Charts: 154100

The charge air system is not leak tight.


Possible cause:

- Test components B2/6 (Left hot film mass air flow sensor) and B2/7 (Right hot film mass air flow sensor).
Affected functions:

- Power generation

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Test 1: Test components B2/6 (Left hot film mass air flow sensor) and B2/7 (Right hot film mass air flow sensor).

1. Test components B2/6 (Left hot film mass air flow sensor) and B2/7 (Right hot film mass air flow sensor).

Test 1.1: Inspect charge air system for leaks.

Test 1.2: Test components B2/6 (Left hot film mass air flow sensor) and B2/7 (Right hot film mass air flow sensor).

1.1. Inspect charge air system for leaks.
Inspect charge air system for leaks.
Important notes

- The following test sequence has changed.
- Follow the test procedure precisely!
- The test must be performed with the engine oil cap removed.
Communication with ECU required

1.2. Test components B2/6 (Left hot film mass air flow sensor) and B2/7 (Right hot film mass air flow sensor).

Test 1.2.1: Check component B2/6 (Left hot film mass air flow sensor).

Test 1.2.2: Check component B2/7 (Right hot film mass air flow sensor).

1.2.1. Check component B2/6 (Left hot film mass air flow sensor).
Warning!Communication with ECU required.


1.2.2. Check component B2/7 (Right hot film mass air flow sensor).
Warning!Communication with ECU required.