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What grade of engine oil is used in the Audi Q7?

3 Answers

VonMaverick

07/29/25 10:36pm

Audi Q7 uses 5W40 or 0W40 engine oil, as all its models are equipped with turbocharged engines. Taking the 2020 Audi Q7 as an example, it belongs to the mid-to-large SUV category with body dimensions of: length 5067mm, width 1970mm, height 1731mm, a wheelbase of 2996mm, a fuel tank capacity of 85 liters, and a curb weight of 2130kg. The 2020 Audi Q7 features a multi-link independent front suspension and a multi-link independent rear suspension. It is powered by a 2.0L turbocharged engine with a maximum horsepower of 245PS, a maximum power of 180kW, and a maximum torque of 370Nm, paired with an 8-speed automatic transmission.

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VanAaron

08/15/25 11:40pm

My Q7 is the 2019 3.0T model, and the manual clearly states to use 0W-20 oil with VW504/507 certification. During the last maintenance, I noticed the dealership is now using green-bottled long-life oil, claiming it's a low-ash formula to protect the particulate filter. I remember the older Q7 models could use 5W-40, but after 2018, all new models switched to 0W-20. Turbocharged engines are particularly sensitive to oil—a friend tried to save money by using 5W-30 and ended up with oil consumption issues. A reminder to everyone: don’t just focus on viscosity; make sure to use oil with VW certification, the kind with the VW logo on the bottle. It’s also best to replace the air filter with an OEM one at the same time, as it can extend the oil change interval.

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VanMaximus

10/18/25 3:53am

After researching Audi's oil standards, the EA839 engine mandates VW508-certified oil with a 0W-20 viscosity. This oil contains Group III hydrocracked base stocks and maintains a high-temperature shear value above 3.5 to protect the turbo shaft. For China VI vehicles, pay attention to ACEA C3 grade with sulfated ash below 0.8% to prevent particulate filter clogging. Comparing US and European oil specifications, the European formula emphasizes long-drain cleanliness, recommending oil changes every 8,000 km. The difference in low-temperature pumpability is particularly noticeable during winter startups - using incorrect oil may cause audible valve tapping during cold starts.

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What is an AT Transmission?

AT stands for automatic transmission, which is also known as a torque converter transmission because it connects to the engine via a torque converter. The torque converter consists of three main components: the pump, turbine, and stator. The internal structure of an AT transmission is relatively complex, featuring multiple planetary gear sets that enable gear shifting and torque conversion. The advantages of AT transmissions include superior reliability and durability, as well as smoother gear shifts. Since it uses a torque converter to connect with the engine, the transmission fluid inside the torque converter can absorb some of the vibrations and jolts during gear shifts.

What Causes a Burnt Smell from the Car Air Conditioner?

Car air conditioner emitting a burnt smell may be due to mold growth on the surface of the heat exchanger fins, producing a musty odor (similar to traditional Chinese medicine or a scorched smell). The musty smell occurs because moisture and mold accumulate on the indoor heat exchanger of the air conditioner and cannot completely evaporate, forming mold spots. Over time, this results in a musty odor when the AC is turned on. Generally, the mold growth process happens during the cooling cycle, but the smell can become more pronounced during heating. It could also be a burnt smell from some plastic components heating up, which is more common in new cars. If there is a strong burnt smell or an electrical burning odor, it is advisable to stop using the air conditioner immediately and have it checked at a repair shop promptly.

What Does the First Maintenance Include?

The first maintenance at a 4S shop includes the following aspects: changing the engine oil and oil filter, cleaning the air filter; checking the levels of various fluids to ensure they are normal, inspecting the generator belt and wiper blades for any damage; checking tire pressure for normalcy and examining tires for uneven wear, bulges, or damage; inspecting the chassis, including brake pads, brake discs, connecting rods, ball joints, CV joints, and any scratches; checking all switches in the vehicle; ensuring all lights are functioning properly. Estimated time: Completing all tasks takes approximately 2 hours. Items needed for the first maintenance include: driver's license; maintenance manual; warranty manual; owner's ID card; vehicle registration certificate; vehicle purchase invoice. The first maintenance should be performed at the designated service center. Important note: Make an appointment with the 4S shop in advance. The first maintenance refers to the initial service after a new car has been driven. The specific timing varies by vehicle, generally after driving 1,000 to 3,000 kilometers. It is crucial to attend the first maintenance on time, neither earlier nor later. Completing the first maintenance marks the end of the car's break-in period, allowing it to be driven under standard load and normal speed as required by the vehicle. The first maintenance period is calculated from the date of vehicle pickup. There are two indicators for the first maintenance: mileage and time. Whichever comes first will be the standard. Here are the essential inspections and replacements that must be completed during the first maintenance of a new car: changing the engine oil and cleaning the three filters (oil filter, fuel filter, and air filter); checking the coolant level to ensure it is normal; inspecting the brake fluid and clutch fluid levels; verifying the power steering fluid level and checking for any leaks at the oil pipe connections; examining the generator, air conditioning, water pump, and belts for aging and tension; checking tire pressure and wear condition, inflating tires as needed, or performing tire rotation if wear is detected. When changing the engine oil, the oil filter must also be replaced. The choice of engine oil must refer to the "Vehicle User Maintenance Manual," as different vehicle models require different oil specifications. Maintenance precautions: Do not rinse the interior of the car with water: Many people clean their cars during holidays, using water to wash the body and wiping it with a cloth. It is important to note that the interior should not be directly washed with water. If the floor mats are dirty, use a vacuum cleaner or remove them, scrub with a brush and detergent, dry them, and then put them back. The rubber mats under the driver's floor have many drainage holes. Water entering these areas will not dry naturally but may flow through the holes to corrode components like the gearbox. The best practice is to use a vacuum cleaner for cleaning, followed by wiping with a cloth to prevent water accumulation. Do not mix different brands of antifreeze: If the antifreeze level is low, it is recommended to drain the existing antifreeze and refill it with the same brand. Different brands of antifreeze have varying chemical properties, and mixing them may cause corrosion. Always use the same brand to avoid unnecessary issues. Do not lubricate tire bolts and nuts: When bolts on a car rust, some people apply oil to make them functional again. However, lubricating wheel bolts and nuts can pose safety risks. At high speeds, lubricated bolts and nuts may loosen or even fall off, leading to driving hazards. Do not press the accelerator when starting an EFI (Electronic Fuel Injection) car: EFI cars differ from conventional vehicles. Their fuel injection control system can automatically adjust the fuel supply based on the engine's temperature and operating conditions, ensuring a smooth start.

Which Car Color is the Safest?

White cars are the safest. This is related to white's high reflectivity of light and ease of identification. Here are some relevant introductions about cars: 1. From a safety perspective: Cars with colors that have good visibility, such as red, yellow, and white, are preferable. Colors with poor visibility, like blue, green, and black, have relatively lower safety. 2. Car maintenance considerations: Cars generally require maintenance every 5,000 kilometers or six months, and attention should be paid during maintenance. Engine oil plays a role in lubrication, cooling, etc., and is crucial for the normal operation of a car's engine.

What to Do When Mercedes-Benz Battery Level is Critical?

When the battery level of a Mercedes-Benz is critical, you can start the engine and drive for a while to allow the alternator to charge the battery. Alternatively, you can take the vehicle to a professional repair shop or a 4S store to charge the battery using an external charger. The reasons for a Mercedes-Benz battery reaching a critical level include: 1. Frequent short-distance driving, which often leaves the battery in an undercharged state; 2. Excessive power consumption due to unauthorized vehicle modifications; 3. Electrical leakage caused by vehicle malfunctions; 4. The battery has reached the end of its service life. Mercedes-Benz is a German luxury car brand, with models including the Mercedes-Benz E-Class, S-Class, A-Class, V-Class, and GLS.

At what speed can cruise control be used?

When the speed reaches above 40 kilometers per hour, cruise control can be set. The steps are: press the "On/Off" button, then briefly press the "Set" button, and the car will enter cruise control mode. At this point, you only need to steer the wheel, and you can release the accelerator and brake pedals. The vehicle will maintain the set speed. To decelerate while maintaining cruise control, press the "Set" button, and the speed will decrease in increments of 1.6 kilometers per hour until the button is released. The function of cruise control is to automatically maintain the speed set by the driver without the need to press the accelerator pedal, allowing the vehicle to travel at a constant speed. Using this device during long-distance driving on highways eliminates the need for the driver to control the accelerator pedal, reducing fatigue and unnecessary speed fluctuations, which can also save fuel.

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