Infiniti QX70 Workshop Manuals and Repair Manuals

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Infiniti QX70

The Infiniti FX-series (called the Infiniti QX70 from late 2013) is a mid-size luxury crossover SUV produced by the Nissan-owned Infiniti luxury vehicle brand since the 2003 model year. The FX replaced the QX4 as Infiniti's mid-size luxury-type SUV, although the QX4 was smaller than the FX. The FX is now in its second generation, since the 2009 model year FX35 and FX50. It is available as front-engine, rear-wheel drive or all-wheel drive. Standard safety features include dual front air bags, side impact air bags, and rear curtain airbags with rollover sensor, as well as Zone Body construction with front and rear crumple zones.

Infiniti QX70 FAQ's

How do I change a flat tire on my Infiniti QX70?

To change a flat tire on your Infiniti QX70, first, find a safe location away from traffic and engage the parking brake. Locate the spare tire, jack, and lug wrench in the trunk of the vehicle. Loosen the lug nuts on the flat tire, raise the vehicle using the jack, and remove the lug nuts and flat tire. Install the spare tire, tighten the lug nuts, lower the vehicle, and finally, tighten the lug nuts securely. It is important to consult the vehicle's manual for detailed instructions specific to your Infiniti QX70 model.

How do I check the engine coolant level in my Infiniti QX70?

To check the engine coolant level in your Infiniti QX70, make sure the engine is cool and the vehicle is on a level surface. Open the hood and locate the coolant reservoir, which is usually translucent and marked with "MIN" and "MAX" indicators. The coolant level should be between these markers when the engine is cool. If the level is low, add a mixture of coolant and water to the reservoir, following the manufacturer's recommendations.

How do I reset the maintenance light on my Infiniti QX70?

To reset the maintenance light on your Infiniti QX70, turn the ignition switch to the ON position without starting the engine. Then, press the trip computer switch until the "Maintenance" menu is displayed. From there, scroll through the options using the trip computer switch and select "Reset" to reset the maintenance light. This procedure may vary slightly depending on the model year of your Infiniti QX70, so it's recommended to consult the vehicle's manual for precise instructions.

How often should I change the engine oil in my Infiniti QX70?

The engine oil in your Infiniti QX70 should be changed every 5,000 to 7,500 miles, or as recommended by the manufacturer. Regular oil changes are crucial to maintain the engine's performance and longevity, as they help lubricate moving parts, reduce friction, and remove contaminants. Following the recommended oil change intervals will ensure optimal engine health and performance.

How often should I check the tire pressure in my Infiniti QX70?

It is recommended to check the tire pressure in your Infiniti QX70 at least once a month, as well as before long trips or when there are significant changes in temperature. Proper tire pressure is crucial for safety, fuel efficiency, and tire longevity. Underinflated or overinflated tires can negatively affect handling, traction, and fuel economy. Regularly checking and adjusting the tire pressure will help ensure optimal driving conditions.

How often should I replace the air filter in my Infiniti QX70?

The air filter in your Infiniti QX70 should be inspected regularly and replaced every 15,000 to 30,000 miles, depending on driving conditions. A clean air filter is essential for maintaining good engine performance and fuel efficiency, as it prevents dirt, debris, and contaminants from entering the engine. Regularly replacing the air filter will ensure proper airflow and protect the engine from potential damage.

How often should I replace the brake pads in my Infiniti QX70?

The brake pads in your Infiniti QX70 should be inspected regularly and replaced when the thickness is worn down to approximately 2-3 millimeters. Brake pads are a critical component of the braking system, and worn-out pads can compromise braking performance and safety. Regularly checking the brake pads' thickness and replacing them as necessary will help maintain optimal braking efficiency.

How often should I replace the cabin air filter in my Infiniti QX70?

The cabin air filter in your Infiniti QX70 should be replaced every 15,000 to 30,000 miles, or as recommended by the manufacturer. The cabin air filter helps keep the air inside the vehicle's cabin clean by filtering out dust, pollen, and other airborne particles. Regularly replacing the cabin air filter will ensure optimal air quality inside the vehicle and maintain the efficiency of the HVAC system.

How often should I replace the fuel filter in my Infiniti QX70?

The fuel filter in your Infiniti QX70 is typically integrated into the fuel pump assembly and does not require regular replacement. However, it is recommended to follow the manufacturer's recommended maintenance schedule for fuel system inspections and maintenance. If you experience any symptoms of a clogged fuel filter, such as poor engine performance or difficulty starting the engine, it may be necessary to replace the fuel pump assembly, which includes the fuel filter.

How often should I replace the timing belt in my Infiniti QX70?

The Infiniti QX70 is equipped with a timing chain instead of a timing belt, which does not typically require regular replacement. Unlike timing belts, timing chains are designed to last the lifetime of the engine with proper maintenance. However, it is still important to follow the manufacturer's recommended maintenance schedule for inspections and maintenance of the timing chain system.

How often should I replace the transmission fluid in my Infiniti QX70?

The transmission fluid in your Infiniti QX70 should be replaced every 60,000 to 100,000 miles, or as recommended by the manufacturer. Fresh transmission fluid is crucial for smooth shifting, proper lubrication, and overall transmission performance. Regularly replacing the transmission fluid will help extend the life of the transmission and prevent potential issues such as slipping or overheating.

How often should I rotate the tires on my Infiniti QX70?

Tire rotation should be performed every 5,000 to 7,500 miles, or as recommended by the manufacturer, to ensure even wear across all tires. Regular tire rotation helps extend tire life and promote more balanced handling and traction. It is also a good opportunity to inspect the tires for any signs of damage or uneven wear.

What type of coolant should I use in my Infiniti QX70?

Your Infiniti QX70 requires a specific type of coolant known as ethylene glycol-based coolant with corrosion inhibitors. This coolant provides the necessary protection against freezing, boiling, and corrosion in the engine's cooling system. Using the recommended coolant will help maintain proper engine temperature, prevent overheating, and prolong the life of cooling system components.

What type of fuel should I use in my Infiniti QX70?

It is recommended to use premium unleaded gasoline with an octane rating of 91 or higher for your Infiniti QX70. Premium fuel helps maximize the performance and efficiency of the engine, as it is specifically designed to work with the engine's high compression ratio. Using lower octane fuel may result in reduced performance and potentially cause knocking or pinging.

When should I replace the spark plugs in my Infiniti QX70?

The spark plugs in your Infiniti QX70 should be replaced every 60,000 to 100,000 miles, or as recommended by the manufacturer. Spark plugs play a vital role in the ignition system by igniting the air and fuel mixture in the engine cylinders. Over time, spark plugs can wear out, leading to misfires, reduced fuel efficiency, and engine performance issues. Regularly replacing the spark plugs will help maintain optimal engine performance.

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