Test 2: Check self-adaptation of mixture formation.
Test 3: Check component G3/3 (Left O2 sensor, before TWC [KAT]).
1. Check exhaust system for leaks.
Possible cause of fault
- Leakage on catalytic converter at flange connection to exhaust manifold and in area of O2 sensor
Possible remedy
- Check O2 sensor for correct seating, tightening torque and leaktightness.
- Check weld seams on catalytic converter for leaktightness.
End of test
2. Check self-adaptation of mixture formation.
Test sequence
- Check actual value Selfadaptation of mixture formation.
- Carry out the following tests.
Continue with button F2
Warning!Communication with ECU required.
3. Check component G3/3 (Left O2 sensor, before TWC [KAT]).
Warning!Communication with ECU required.
722.9 (7-gear) ETC2 as of 2008
The internal electrical check of component Y3/8y5 (B1 brake control solenoid valve (VGS)) has failed.
Possible cause:
- Y3/8y5 (B1 brake control solenoid valve (VGS))
Affected functions:
- Automatic transmission Function
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Test 1: Remedial action if component 'Y3/8y5 (B1 brake control solenoid valve (VGS))' is faulty
1. Remedial action if component 'Y3/8y5 (B1 brake control solenoid valve (VGS))' is faulty
Operation number of operation texts and work units or standard texts and flat rates:27-0641Cause
- Component Y3/8y5 (B1 brake control solenoid valve (VGS)) is defective.
REMEDY
- Disassemble and assemble automatic transmission using the repair instructions.
- Exchange electrohydraulic control unit.
Notes on submitting warranty or goodwill claimsSEAG damage code (7 digits): 53384 73IMPORTANT NOTEFollowing the repair measures, the
following checks MUST be carried out using the Diagnosis Assistance System, menu 'Initial startup'
- Initial startup with manual settings input for new control unit
Continue with button "F2"
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