On some Mitsubishi vehicles, refrigerant gas may leak from the front shaft seal of the A/C compressor, causing decreased A/C cooling performance. This primarily affects 2008-2010 Outlanders built prior to May 21, 2010, and 2009-2010 Lancers and Lancer Sportbacks built prior to May 20, 2010.

A/C compressor replacement is required to address the problem. Refer to the label on the A/C compressor and confirm that it not a new part number (new part numbers are listed in the following chart). If the vehicle is equipped with a part number listed in the chart, this TSB does not apply.

Perform a leak test before replacement to verify leak location. Do not replace the A/C compressor if a refrigerant leak at the front shaft seal cannot be verified.

ENGINE       COMPRESSOR/CLUTCH                   COMPRESSOR     LANCER     OUTLANDER

3.0L                                 7813A354                             7813A366                   -                        X

2.0 / 2.4L                         7813A350                             7813A365                  X                       X

Check the part number of the compressor. If the existing part number is listed on the chart, this TSB does not apply.

Check the part number of the compressor. If the existing part number is listed on the chart, this TSB does not apply.

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