Nissan Altima 2016–2018 — technical service bulletin
Bulletin NTB18-006 · NHTSA communication 10141440 · issued May 25, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2016–2018
model years
3
vehicle entries
Official summary
2016-2018 ALTIMA WITH QR25DE/4-CYL ENGINE; MOAN NOISE AFTER A/C COMPRESSOR ENGAGES This bulletin applies only to vehicles equipped with a 4-cylinder engine. IF YOU CONFIRM A moan type noise is heard just after the A/C is turned ON (compressor engages) and lasts for about 10 seconds and/or While the A/C is operating and the compressor clutch cycles from OFF to ON, the moan noise is heard for about 10 seconds. ACTION Replace the low pressure A/C flex hose with the one listed in PARTS INFORMATION. Do NOT replace the compressor for this incident, if it should occur. This bulletin does not apply fo
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.