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Stan
Stan, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3526
Experience:  Technical support engineer
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mercedes: code 2633 =charge air system offset drift under engine load.

Customer Question

mercedes sprinter 311cdi 2008.
fault code 2633 =charge air system offset drift under engine load. help
Submitted: 4 years ago.
Category: Mercedes
Expert:  Stan replied 4 years ago.
Hello,
First thing to do in case of such fault code is to replace the air filter. After this is done- new filter initialization must be definitely performed.
Further checks involve DPF regeneration and leakage test of the charge air piping starting from mass airflow sensor.
Regards,
Stan

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