2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 504

- Check voltage supply according to wiring diagram.

4. Check component G3/5 (Left O2 sensor, after TWC [KAT]).

Warning!Communication with ECU required.

0433

Heating of component G3/4 (Right O2 sensor, before TWC [KAT]) : Short circuit to positive / Resistance of sensor heater too low (P0135)

Possible cause:

- G3/4 (Right O2 sensor, before TWC [KAT])

Affected functions:

- Engine diagnosis

- Exhaust system

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Test 1: Check component G3/4 (Right O2 sensor, before TWC [KAT]).

Test 2: Check component G3/4 (Right O2 sensor, before TWC [KAT]).

1. Check component G3/4 (Right O2 sensor, before TWC [KAT]).

Warning!Communication with ECU required.

2. Check component G3/4 (Right O2 sensor, before TWC [KAT]).

Warning!Communication with ECU required.

0435

The electronic analysis system for the O2 sensor in the engine control unit is defective. (P0607)

Possible cause:

- Test control unit.

Affected functions:

- Engine diagnosis

- Exhaust system

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Test 1: Test control unit.

1. Test control unit.

Test control unit.

Possible cause and remedy

- Erase fault memory and start engine.

- Reread fault memory of control unit N3/10 (ME-SFI [ME] control unit).If fault reoccurs, replace component N3/10 (ME-SFI [ME] control

unit).

Read coding and transfer to the new control unit.End of test

0436

Heating of component G3/4 (Right O2 sensor, before TWC [KAT]) : Heating capacity is too low. (P0135)