Infiniti QX60 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Infiniti QX60

Infiniti QX60 Problems

Timing Chain Rattle and Tapping Noise

Rattling and tapping in the front of the engine on the 2014-2016 QX60 is very evident, especially on cold starts. This rattling noise should not be taken lightly as it warns of upcoming timing chain failure. 

The cause of the noise is faulty timing chain guide rails and timing chain tensioners that wear out well ahead of schedule. These components are there to keep the timing chain tight and properly positioned. When these parts fail, the timing chain becomes loose, and pieces of the timing chain guides break off, falling into the oil pan. 

To remedy the situation, Nissan/Infiniti has made revised guides and tensioners, but replacement can be very costly. 

Proper oil change intervals and oil type may help slow or prevent the situation. 

Erratic or High Idle After Cleaning Throttle Body

The throttle body for the Infiniti QX60 is known for carbon buildup, and requires regular, light cleaning to maintain peak performance. After cleaning the throttle body, many owners notice a very high idle, erratic (bouncing) idle, and unpredictable power surging. 

The cause is normal ECU adaptation: When the throttle body builds up carbon, the rate of airflow is slightly decreased. The vehicles computer reads this decrease in air volume, and adjusts the throttle body settings to maintain the proper engine idle speed. When the carbon is cleaned out, the ECU now registers too much air, and cannot adjust back to the original settings. While it is trying to change settings, the idle will bounce from low to high, and the car will surge forward at times. 

It has been recommended to simply wipe inside the throttle body every 12,000 miles, and never to touch the flap inside. Also, the cleaning procedure may be best left to a qualified technician.

The solution can be as simple as disconnecting the battery for at least an hour, having the dealer reset the computer, or, in extreme cases, replace the throttle bodies. 

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Infiniti QX60 Recalls

Passenger Frontal Air Bag Does Not Deploy In A Crash

The occupant classification system may not appropriately detect an occupant in the passenger front seat, and as a result may not power the passenger frontal air bag for deployment in an accident. Dealers will reprogram the air bag control unit and occupant classification system electronic control unit in some vehicles, replacing the occupant classification system electronic control unit additionally in other vehicles free of charge to resolve the concern.

Passenger Front Air Bag Does Not Deploy In An Accident

The occupant classification system may malfunction, resulting in the front passenger air bag not deploying when needed in an accident. Dealers will update the system software free of charge to resolve the concern.

Hood Release Cable

In certain vehicles the hood release cable may have been installed incorrectly, as a result the latch may not fully engage, leaving the secondary latch in the open position with the hood is closed. If the primary hood latch is released and the secondary latch fails while driving the hood could open unexpectedly, blocking the driver's vision and increasing the risk of a crash. To correct this concern dealers will modify the angle of the hood release mechanism to provide additional length to the release cable.

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