Replace Volvo Thermostat to Fix Weak Power

July 3, 2023
This bulletin applies to 2014-2017 Volvo vehicles. The vehicle may exhibit issues including a weak battery/low electrical power, low battery warning signal, warning lights/chimes/check engine light.

This bulletin applies to 2014-2017 Volvo vehicles. The vehicle may exhibit issues including a weak battery/low electrical power, low battery warning signal, warning lights/chimes/check engine light. If any of the following DTCs are set in the ECM or CEM for the pre-heated thermostat in the cooling system, replace the thermostat:

B139F11, B139F12, B139F13, B139D01, B123E11, B139F01, P059700, P059800 and/or P059900.

Replace the thermostat according to instructions in VIDA and erase DTCs. According to Volvo, “not replacing the thermostat can cause consequential damages.”

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