Infiniti QX50 2014-2017 Drivetrain Specifications

The 2014-2017 Infiniti QX50 is equipped with an ATTESA E-TS all-wheel-drive (AWD) system. This system is designed to optimize traction and stability by automatically distributing torque between the front and rear wheels as needed. The drivetrain is paired with a 3.7L V6 engine and a 7-speed automatic transmission, providing a balance of performance and efficiency.

Regular maintenance for the Infiniti QX50 drivetrain includes checking and replacing the transfer case fluid, differential fluid, and transmission fluid every 30,000 to 60,000 miles, depending on driving conditions. Additionally, inspect the driveshaft, CV joints, and suspension components for wear and tear. Ensure the AWD system is functioning properly by performing periodic diagnostic checks to maintain optimal performance and longevity.

To replace drivetrain components on the Infiniti QX50, start by lifting the vehicle securely on a jack stand. Remove the undercarriage shields to access the drivetrain. For the driveshaft, unbolt it from the transmission and differential. For the CV joints, remove the wheel assembly and disconnect the axle. Install the new components in reverse order, ensuring all bolts are torqued to manufacturer specifications. Always refer to the service manual for detailed instructions.

Common drivetrain issues in the Infiniti QX50 include vibrations during acceleration, which may indicate worn CV joints or driveshaft imbalance. Unusual noises from the transfer case or differential could signal fluid degradation or internal component wear. If the AWD system malfunctions, check for faulty sensors or wiring. Regular inspections and timely fluid changes can help prevent these issues.

To optimize drivetrain performance, use high-quality synthetic fluids for the transmission, transfer case, and differential. Ensure tires are evenly worn and properly inflated to reduce strain on the AWD system. Avoid aggressive driving habits that can accelerate wear on drivetrain components. Regularly inspect and maintain the drivetrain to ensure all parts are functioning correctly and efficiently.