2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 552

Test 1: 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.

0587

G3/3 (Left O2 sensor, before TWC [KAT]) : Open circuit (P2247)

Possible cause:

- G3/3 (Left O2 sensor, before TWC [KAT])

Affected functions:

- Engine diagnosis

- Exhaust system

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Test 1: Check component G3/3 (Left O2 sensor, before TWC [KAT]).

1. Check component G3/3 (Left O2 sensor, before TWC [KAT]).

Warning!Communication with ECU required.

0591

G3/4 (Right O2 sensor, before TWC [KAT]) : Open circuit (P2251)

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]).

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

Warning!Communication with ECU required.

0595

G3/3 (Left O2 sensor, before TWC [KAT]) : Open circuit (P2254)

Possible cause:

- G3/3 (Left O2 sensor, before TWC [KAT])

Affected functions:

- Engine diagnosis

- Exhaust system

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Test 1: Check component G3/3 (Left O2 sensor, before TWC [KAT]).