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Stan
Stan, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3526
Experience:  Technical support engineer
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merc c220 02 reg ecp light keeps coming on the engine goes

Customer Question

merc c220 02 reg ecp light keeps coming on the engine goes into crawl mode 10 kl per hour the in its own time recovers diagnosis please
Submitted: 2 years ago.
Category: Mercedes
Expert:  Stan replied 2 years ago.

Stan :

Hello,
Such general symptoms are caused by electronic engine control unit detecting abnormal values from any of the engine sensors, which make the exhaust emissions exceed the allowed value. So the cause can be anything starting from clogged air or fuel filters to faulty engine control unit. It is necessary to have the fault codes read out with suitable diagnostic tool like Xentry/Star Diagnosis or Bosch KTS for example.

Stan :

regards,
Stan

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