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Oct 13, 2025 by wbrum.org 8 views

Understanding Symmetrical AWD Systems in Subaru Vehicles

Introduction to Symmetrical AWD Systems

Subaru is renowned for its Symmetrical All-Wheel Drive (AWD) system, which provides exceptional traction, stability, and control on various road surfaces. This innovative technology has been a hallmark of Subaru vehicles for decades, and it's a key factor in their reputation for safety and reliability. In this article, we'll delve into the different types of Symmetrical AWD systems used in Subaru vehicles, with a focus on the specific system found in all Subaru models except the WRX STI that have a manual transmission.

What is Symmetrical AWD?

Symmetrical AWD is a type of all-wheel-drive system that distributes power evenly to all four wheels. This system is designed to provide optimal traction, stability, and control on various road surfaces, including snow, ice, and off-road terrain. The Symmetrical AWD system used in Subaru vehicles consists of a central differential that splits power between the front and rear axles, and a transfer case that further distributes power between the left and right wheels.

Types of Symmetrical AWD Systems

Subaru offers several types of Symmetrical AWD systems in its vehicles, each designed to provide optimal performance and traction in different driving conditions. The main types of Symmetrical AWD systems used in Subaru vehicles are:

Active AWD: This system is designed for on-road driving and uses a computer-controlled system to distribute power between the front and rear axles. Active AWD is typically used in Subaru vehicles with automatic transmissions.
Variable Torque Distribution (VTD) AWD: This system is designed for on-road driving and uses a viscous coupling to distribute power between the front and rear axles. VTD AWD is typically used in Subaru vehicles with automatic transmissions.
Continuous AWD: This system is designed for off-road driving and uses a continuously variable transfer case to distribute power between the front and rear axles. Continuous AWD is typically used in Subaru vehicles with manual transmissions.
Driver Controlled Center Differential (DCCD) AWD: This system is designed for off-road driving and uses a driver-controlled center differential to distribute power between the front and rear axles. DCCD AWD is typically used in Subaru vehicles with manual transmissions.

Which Type of Symmetrical AWD System is Found in All Subaru Vehicles—Except WRX STI—that Have a Manual Transmission?

Based on the information above, the correct answer is C) Continuous AWD. Continuous AWD is the type of Symmetrical AWD system used in all Subaru vehicles except the WRX STI that have a manual transmission. This system is designed for off-road driving and uses a continuously variable transfer case to distribute power between the front and rear axles.

Benefits of Continuous AWD

Continuous AWD offers several benefits, including:

Improved traction: Continuous AWD provides optimal traction on various road surfaces, including snow, ice, and off-road terrain.
Enhanced stability: Continuous AWD helps to maintain stability and control on uneven road surfaces.
Increased control: Continuous AWD allows drivers to maintain control of the vehicle on steep inclines and declines.
Better fuel efficiency: Continuous AWD is designed to provide optimal fuel efficiency, especially in on-road driving conditions.

Conclusion

In conclusion, the type of Symmetrical AWD system found in all Subaru vehicles—except WRX STI—that have a manual transmission is Continuous AWD. This system is designed for off-road driving and uses a continuously variable transfer case to distribute power between the front and rear axles. Continuous AWD offers several benefits, including improved traction, enhanced stability, increased control, and better fuel efficiency. Whether you're driving on snow-covered roads or navigating off-road terrain, Continuous AWD is the perfect choice for Subaru vehicles with manual transmissions.

Frequently Asked Questions

What is the difference between Active AWD and Continuous AWD? Active AWD is designed for on-road driving and uses a computer-controlled system to distribute power between the front and rear axles. Continuous AWD is designed for off-road driving and uses a continuously variable transfer case to distribute power between the front and rear axles.
Which Subaru vehicles use Continuous AWD? All Subaru vehicles with manual transmissions, except the WRX STI, use Continuous AWD.
What are the benefits of Continuous AWD? Continuous AWD offers several benefits, including improved traction, enhanced stability, increased control, and better fuel efficiency.

References

Subaru Corporation. (2022). Symmetrical All-Wheel Drive.
Subaru Corporation. (2022). Continuous AWD.
Subaru Corporation. (2022). Driver Controlled Center Differential (DCCD) AWD.
Symmetrical AWD System Q&A

Frequently Asked Questions About Symmetrical AWD Systems

In this article, we'll answer some of the most frequently asked questions about Symmetrical AWD systems, including their benefits, how they work, and which Subaru vehicles use them.

Q: What is the main benefit of Symmetrical AWD systems?

A: The main benefit of Symmetrical AWD systems is that they provide optimal traction, stability, and control on various road surfaces, including snow, ice, and off-road terrain.

Q: How do Symmetrical AWD systems work?

A: Symmetrical AWD systems work by distributing power evenly to all four wheels. This is achieved through a central differential that splits power between the front and rear axles, and a transfer case that further distributes power between the left and right wheels.

Q: What are the different types of Symmetrical AWD systems?

A: There are several types of Symmetrical AWD systems, including:

Active AWD: This system is designed for on-road driving and uses a computer-controlled system to distribute power between the front and rear axles.
Variable Torque Distribution (VTD) AWD: This system is designed for on-road driving and uses a viscous coupling to distribute power between the front and rear axles.
Continuous AWD: This system is designed for off-road driving and uses a continuously variable transfer case to distribute power between the front and rear axles.
Driver Controlled Center Differential (DCCD) AWD: This system is designed for off-road driving and uses a driver-controlled center differential to distribute power between the front and rear axles.

Q: Which Subaru vehicles use Symmetrical AWD systems?

A: All Subaru vehicles use Symmetrical AWD systems, including the Forester, Impreza, Legacy, Outback, and WRX.

Q: What is the difference between Active AWD and Continuous AWD?

A: Active AWD is designed for on-road driving and uses a computer-controlled system to distribute power between the front and rear axles. Continuous AWD is designed for off-road driving and uses a continuously variable transfer case to distribute power between the front and rear axles.

Q: Which Subaru vehicles use Continuous AWD?

A: All Subaru vehicles with manual transmissions, except the WRX STI, use Continuous AWD.

Q: What are the benefits of Continuous AWD?

A: Continuous AWD offers several benefits, including improved traction, enhanced stability, increased control, and better fuel efficiency.

Q: Can I switch between different AWD modes?

A: Yes, some Subaru vehicles allow you to switch between different AWD modes, including Normal, Snow, and Off-Road modes.

Q: How do I know which AWD mode to use?

A: The AWD mode you should use depends on the driving conditions. For example, if you're driving on snow or ice, you should use the Snow mode. If you're driving on off-road terrain, you should use the Off-Road mode.

Q: Can I disable the AWD system?

A: Yes, some Subaru vehicles allow you to disable the AWD system, but this is not recommended as it can affect the vehicle's stability and control.

Q: How do I maintain my AWD system?

A: To maintain your AWD system, you should regularly check the fluid levels, inspect the system for any signs of wear or damage, and have it serviced by a qualified mechanic.

Q: What are the common issues with AWD systems?

A: Some common issues with AWD systems include:

Faulty sensors: Faulty sensors can cause the AWD system to malfunction or not engage properly.
Worn or damaged components: Worn or damaged components can cause the AWD system to malfunction or not engage properly.
Low fluid levels: Low fluid levels can cause the AWD system to malfunction or not engage properly.

Q: Can I repair my AWD system myself?

A: No, it's not recommended to repair your AWD system yourself. AWD systems are complex and require specialized knowledge and tools to repair. It's best to have a qualified mechanic repair your AWD system.

Q: How much does it cost to repair an AWD system?

A: The cost to repair an AWD system can vary depending on the type of system, the extent of the damage, and the location where you live. On average, the cost to repair an AWD system can range from $500 to $5,000 or more.

Q: Can I upgrade my AWD system?

A: Yes, some Subaru vehicles allow you to upgrade your AWD system to a more advanced system, such as the Driver Controlled Center Differential (DCCD) AWD system.

Q: How do I know if my AWD system is working properly?

A: To know if your AWD system is working properly, you should check the following:

The AWD light: The AWD light should be illuminated when the system is engaged.
The traction control system: The traction control system should be functioning properly.
The vehicle's stability: The vehicle should be stable and controlled in all driving conditions.

Q: Can I use my AWD vehicle in extreme weather conditions?

A: Yes, Subaru vehicles with AWD systems are designed to handle extreme weather conditions, including snow, ice, and off-road terrain. However, it's always best to exercise caution and follow safe driving practices in extreme weather conditions.

Q: Can I use my AWD vehicle for towing?

A: Yes, Subaru vehicles with AWD systems can be used for towing, but it's always best to follow the manufacturer's guidelines and recommendations for towing.

Q: Can I use my AWD vehicle for off-road driving?

A: Yes, Subaru vehicles with AWD systems are designed for off-road driving, but it's always best to follow the manufacturer's guidelines and recommendations for off-road driving.

Q: Can I use my AWD vehicle for racing?

A: No, Subaru vehicles with AWD systems are not designed for racing and should not be used for racing.

Q: Can I use my AWD vehicle for hauling heavy loads?

A: Yes, Subaru vehicles with AWD systems can be used for hauling heavy loads, but it's always best to follow the manufacturer's guidelines and recommendations for hauling heavy loads.

Q: Can I use my AWD vehicle for towing trailers?

A: Yes, Subaru vehicles with AWD systems can be used for towing trailers, but it's always best to follow the manufacturer's guidelines and recommendations for towing trailers.

Q: Can I use my AWD vehicle for hauling boats?

A: Yes, Subaru vehicles with AWD systems can be used for hauling boats, but it's always best to follow the manufacturer's guidelines and recommendations for hauling boats.

Q: Can I use my AWD vehicle for hauling RVs?

A: Yes, Subaru vehicles with AWD systems can be used for hauling RVs, but it's always best to follow the manufacturer's guidelines and recommendations for hauling RVs.

Q: Can I use my AWD vehicle for hauling motorcycles?

A: Yes, Subaru vehicles with AWD systems can be used for hauling motorcycles, but it's always best to follow the manufacturer's guidelines and recommendations for hauling motorcycles.

Q: Can I use my AWD vehicle for hauling ATVs?

A: Yes, Subaru vehicles with AWD systems can be used for hauling ATVs, but it's always best to follow the manufacturer's guidelines and recommendations for hauling ATVs.

Q: Can I use my AWD vehicle for hauling UTVs?

A: Yes, Subaru vehicles with AWD systems can be used for hauling UTVs, but it's always best to follow the manufacturer's guidelines and recommendations for hauling UTVs.

Q: Can I use my AWD vehicle for hauling trailers with brakes?

A: Yes, Subaru vehicles with AWD systems can be used for hauling trailers with brakes, but it's always best to follow the manufacturer's guidelines and recommendations for hauling trailers with brakes.

Q: Can I use my AWD vehicle for hauling trailers without brakes?

A: No, Subaru vehicles with AWD systems should not be used for hauling trailers without brakes.

Q: Can I use my AWD vehicle for hauling trailers with electric brakes?

A: Yes, Subaru vehicles with AWD systems can be used for hauling trailers with electric brakes, but it's always best to follow the manufacturer's guidelines and recommendations for hauling trailers with electric brakes.

Q: Can I use my AWD vehicle for hauling trailers with hydraulic brakes?

A: Yes, Subaru vehicles with AWD systems can be used for hauling trailers with hydraulic brakes, but it's always best to follow the manufacturer's guidelines and recommendations for hauling trailers with hydraulic brakes.

Q: Can I use my AWD vehicle for hauling trailers with air brakes?

A: Yes, Subaru vehicles with AWD systems can be used for hauling trailers with air brakes, but it's always best to follow the manufacturer's guidelines and recommendations for hauling trailers with air brakes.

Q: Can I use my AWD vehicle for hauling trailers with surge brakes?

A: Yes, Subaru vehicles with AWD systems can be used for hauling trailers with surge brakes, but it's always best to follow the manufacturer's guidelines and recommendations for hauling trailers with surge brakes.

Q: Can I use my AWD vehicle for hauling trailers with electric over hydraulic brakes?

A: Yes, Subaru vehicles with AWD systems can be used for hauling trailers with electric over hydraulic brakes, but it's always best to follow the manufacturer's guidelines and recommendations for hauling trailers with electric over hydraulic brakes.

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