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Engine light code po128. No code is po128. 2009 c300

Engine light code po128 ...

Engine light code po128

Mechanic's Assistant: Has your vehicle stalled? Has anyone run a diagnostic test to pull the trouble code?

No code is po128

Mechanic's Assistant: What is the model/year of your Mercedes?

2009 c300

Mechanic's Assistant: Are you fixing your C300 yourself? What have you tried so far?

Yes

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Answered in 7 minutes by:
11/18/2017
Dan
Dan, Technician
Category: Mercedes
Satisfied Customers: 26,058
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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Hello, my name is ***** ***** I'm here to help get your problem solved.

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This code means the engine is taking too long to warm up which can be caused by a failing thermostat or coolant temp sensor, the thermostat is the most common of the two. I would recommend replacing thermostat with a OEM part. This would be around a $300-$400 job at a shop depending on where you go. Let me know if you have more questions or if there is anything else I can do to help. Thanks.

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Customer reply replied 9 months ago
thanks

No problem, I'm happy to help. Let me know if there is anything else I can do, thanks.

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Ever get problem figured out? Please do not forget to rate answer. Thanks.

Dan
Dan, Technician
Category: Mercedes
Satisfied Customers: 26,058
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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