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July 12, 2019 Service bulletin

"Service Action: Retrofit of the Engine Coolant Temperature Sensor

MINI technical service bulletin M170912 for 2011-2013 MINI Cooper, 2011-2013 MINI Cooper S and 2011-2012 MINI Cooper S Convertible and others.

Bulletin number
M170912
Component
Engine and engine cooling
Summary
"Service Action: Retrofit of the Engine Coolant Temperature Sensor. Internal corrosion could form in the engine coolant temperature sensor. This corrosion leads to internal bridging of the contacts, which can cause an inaccurate engine temperature reading. This false reading could lead to difficulty in the engine starting and/or a ""Service Engine Soon"" lamp being illuminated."

Owners of these vehicles have filed 78 complaints in the engine category.

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