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Service bulletin M170412

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10150349
Published by NHTSA2018-12-03
Manufacturer's numberM170412
Manufacturer's date2012-10-01
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's 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."

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
MINI COOPER COUNTRYMAN2011 to 2013
MINI COOPER S COUNTRYMAN2011 to 2012

Listing a model year does not mean every vehicle of it is concerned: the document says which.