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Mercedes C180 W203 2016 Fault Codes P2023, P200B, P200C - Diagnosis and Solutions

Model: Mercedes C180 w203 Fault Code: P2023 Posted: 2018-06-01 09:40

My 2016 Mercedes C180 W203 is displaying fault codes P2023, P200B, and P200C. I have already replaced the lambda (oxygen) sensor, air temperature sensor, switch valve, and camshaft position sensor. The vehicle now shows failed emissions and significantly reduced power. Despite these replacements, the issue persists. Any insights or troubleshooting steps for these specific codes? Thanks, Brian.

Related fault codes

P2023

Comments (3)

Anonymous 2018-06-17 09:28

Check for intake manifold runner faults—common causes of P200B and P200C in W203 C-Class models. Refer to this forum thread for detailed solutions on related trouble codes.

Anonymous 2018-06-25 08:09

Sorry, I've already replaced the entire intake manifold and runner valve, along with all vacuum hoses. Thanks for the input though!

Anonymous 2018-06-26 08:32

Hi guys. Forgot to say no power to secondary air pump.camshaft sensor.variable camshaft sensor. Or switch valve.even changed fusebox. Any other ideas please. Thanks Brian.