Manufacturer Code Charts: 103400

The negative control deviation of exhaust gas recirculation control during regeneration is too high.


Possible cause:

- Y27/9 (Exhaust gas recirculation actuator)
Affected functions:

- Power generation

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Test 1: Automatic test of exhaust gas recirculation

1. Automatic test of exhaust gas recirculation
Automatic test of exhaust gas recirculation
Test prerequisites:Coolant temperature between 80 °C and 100 °C Oil temperature between 80 °C and 100 °C Lambda value between 1 and 10All electrical accessories must be switched off.Switch off the air conditioning.Intake and exhaust system without leakage Operate parking brake.Take out gear.Engine at idle Status of the relevant actual values:
- Coolant temperature:Warning! Communication with ECU required.

- Oil temperature:Warning! Communication with ECU required.

- Lambda upstream of TWC:Warning! Communication with ECU required.
Continue with button F2