Mercedes Benz

Mercedes-Benz Mercedes Benz OEM Parts Mercedes Benz OE Replacement Parts 0234 Due to a possible leak in the intake air system, an implausible signal was received from oxygen sensor 1 (cylinder bank 2). Test 1: Check component G3/3 (Left O2 sensor, before TWC [KAT]). Test 2: Possible cause: - Intake system Affected functions: - Engine diagnosis - Exhaust system 1. Check component G3/3 (Left O2 sensor, before TWC [KAT]). Warning!Communication with ECU required. 2. No further information available.