2015 INFINITI Q70

Introduction: The 2015 INFINITI Q70 is a full-size luxury sedan known for its sleek exterior, comfortable interior, and potent powertrains. Engine options include a 3.7-liter V6 (330 hp, 270 lb-ft torque), a 5.6-liter V8 (420 hp, 417 lb-ft torque), and a hybrid system combining a 3.5-liter V6 and an electric motor (360 hp, 258 lb-ft torque). Transmission options include a 7-speed automatic and a 7-speed manual. Enthusiasts praise the Q70’s handling, power, and refined interior, while some dislike its firm ride and high price tag.

Engine:

3.7L V6

• Oil Leaks from Valve Covers: Oil leaks from the valve covers, causing smoke under the hood and reduced engine oil levels. Replacing the valve covers and gaskets resolves the issue. Estimated Cost to Fix: $500 - $900
• Knock Sensor Failure: The knock sensors can fail, leading to engine detonation and potential engine damage. Replacing the knock sensors and wiring harness is necessary. Estimated Cost to Fix: $500 - $800

5.6L V8

• No Issues Found

Hybrid:

• Battery Pack Failure: The battery pack may experience premature failure, resulting in reduced power or sudden vehicle shutdown. Replacing the battery pack is the recommended solution. Estimated Cost to Fix: $10,000 - $15,000
• Inverter Failure: The inverter can fail, causing loss of power to the electric motor. Replacing the inverter is necessary. Estimated Cost to Fix: $3,000 - $5,000

Transmission:

7-Speed Automatic

• Hesitation and Rough Shifts: The transmission may experience hesitation or rough shifts during gear changes. Reflashing the transmission control module (TCM) software can resolve the issue. Estimated Cost to Fix: $Free - $500
• Torque Converter Lock-up Failure: The torque converter may fail to lock up, causing reduced fuel efficiency and poor performance. Replacing the torque converter is necessary. Estimated Cost to Fix: $1,500 - $2,500

7-Speed Manual

• No Issues Found

Suspension:

• Front Strut Mount Failure: The front strut mounts can fail, leading to clunking noises and poor handling. Replacing the strut mounts and bearings is the solution. Estimated Cost to Fix: $500 - $900
• Rear Shock Absorber Failure: The rear shock absorbers may fail prematurely, causing a bouncy ride or loss of suspension control. Replacing the shock absorbers resolves the issue. Estimated Cost to Fix: $400 - $800

Electrical:

• Battery Drain: Vehicles with the Bose audio system may experience excessive battery drain. Disconnecting the Bose amplifier cable can resolve the issue. Estimated Cost to Fix: $Free
• Navigation System Lock-up: The navigation system may freeze or lock up. Updating the navigation system software is the solution. Estimated Cost to Fix: $Free - $500

Exterior:

• Trunk Lid Alignment Issues: The trunk lid may not align properly, causing gaps or uneven closure. Adjusting the trunk lid hinges or replacing the trunk lid is necessary. Estimated Cost to Fix: $300 - $600

Interior:

• Climate Control Failure: The climate control system may malfunction, causing problems with heating, ventilation, and air conditioning (HVAC). Replacing the HVAC control unit resolves the issue. Estimated Cost to Fix: $500 - $900
• Power Window Failure: The power windows may fail to operate or become stuck. Replacing the window motors or switches is the solution. Estimated Cost to Fix: $200 - $400

Summary: The 2015 INFINITI Q70 offers a premium driving experience but is plagued by several issues. Engine problems, particularly with the hybrid system, can be expensive to fix. Transmission issues, while less frequent, can also lead to costly repairs. Suspension and electrical issues are minor but can affect the vehicle’s comfort and functionality. The Q70’s cost of ownership may be higher than expected, especially with major repairs.