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What does a P0128 code on a 2003 Mercedes Benz C230 mean?

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What does a P0128 code on a 2003 Mercedes Benz C230 mean?

Vehicle: 2003 Mercedes Benz C230

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Hi there,

This code is a code for a faulty coolant temp sensor or sticking thermostat. If the car is not running hot then it's likely an issue with the coolant temp sensor itself and should be replaced.
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P0128 MERCEDES-BENZ - Coolant Thermostat Malfunction

Read more: https://www.autocodes.com/p0128_mercedes-benz.html

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