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Mike, Technician
Category: Mercedes
Satisfied Customers: 39198
Experience:  34 years of in the Motor Trade as diagnostic Technician and general repair work.
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what is code ECU 128 on in 07 freightliner m2 mercedes eng

Customer Question

what is code ECU 128 on in 07 freightliner m2 mercedes engine?
Submitted: 7 years ago.
Category: Mercedes
Expert:  Mike replied 7 years ago.

Hello and Welcome to justanswer...


My listings indicate that the 128 fault code is related to the operation - or faulty operation of the EGR valve.


You will need to remove it and give it a good clean... sometimes this works well - and clean out the ports as well -- they get sooted / caked up.


Check all the piping (associated ) etc and clean as needed - - and then refit and retry.


Hopefully all will be well -- but if not - you will need to renew the egr valve.


I Sincerely XXXXX XXXXX have helped you - Please ask me if you need more help...


Kind Rgds,.... MIKE

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