Parts for your 2017 Subaru Impreza-Receiver driers

Understanding the Receiver Drier and Its Role in the 2017 Subaru Impreza

When exploring components of the air conditioning system in the 2017 Subaru Impreza, one might wonder if a receiver drier is part of the set-up. Technically speaking, the 2017 Subaru Impreza does not employ a receiver drier as part of its air conditioning system. Instead, this model utilises an accumulator system, which performs a similar but distinct function tailored to the car's specific AC design.

To explain why the receiver drier is not used on the 2017 Subaru Impreza, understanding the difference between receiver driers and accumulators is key. Both components serve to protect the air conditioning system, but their usage depends on the type of AC cycle employed.

Receiver driers are typically found in systems with a thermal expansion valve (TXV), where the system is high-side liquid line monitored. The receiver drier sits on the high pressure side of the system, between the condenser and the expansion valve, and acts as a storage container for refrigerant while filtering out moisture and contaminants.

On the other hand, vehicles like the 2017 Subaru Impreza utilise an orifice tube system with an accumulator. The accumulator is installed on the low pressure side, between the evaporator and the compressor. It protects the compressor from liquid refrigerant and removes moisture and impurities much like a receiver drier, but the system arrangement and refrigerant flow need this specific component instead.

So, why does Subaru go for an accumulator rather than a receiver drier on this model? It comes down to the design and operational needs of the Impreza's air conditioning system. The orifice tube system with an accumulator is generally simpler and more cost-effective for certain vehicle models. It also offers reliable protection to the compressor by trapping any liquid refrigerant and moisture before it can cause damage.

Now, if you're servicing or maintaining the air conditioning on a 2017 Subaru Impreza, it means dealing with an accumulator rather than a receiver drier. Nevertheless, the purpose and importance of this part are somewhat similar and warrant proper attention during servicing.

The accumulator plays a vital role in trapping moisture and debris, which can affect refrigerant flow and ultimately reduce the efficiency of the air conditioning system. It also acts as a temporary storage for refrigerant, ensuring only vapour returns to the compressor. Without a properly functioning accumulator, the compressor could be damaged by liquid refrigerant, leading to costly repairs.

Whenever an air conditioning system is opened up for repairs such as replacing the compressor or fixing refrigerant leaks, replacing the accumulator is strongly advised. Why? Because once exposed to the atmosphere, these components lose their desiccant capability, meaning they can no longer effectively remove moisture. If moisture remains in the system, it can freeze and block the refrigerant flow or cause corrosion inside the AC components.

For Subaru Impreza owners, routine maintenance of the air conditioning system should include a thorough inspection of the accumulator and surrounding lines for signs of wear, leaks, or contamination. Although the accumulator itself is not generally classified as a 'wear item' on its own, it is good practice to change it whenever the AC system is opened up or if it shows signs of damage. This is especially important if a compressor replacement happens or if you're flushing the system.

Ignoring the accumulator in an orifice tube system can lead to decreased AC performance and potential damage to expensive parts like the compressor. Replacing this component is a relatively affordable measure considering the critical protection it offers. Plus, it keeps the whole system running efficiently, which means cooler air on those hot Australian days.

While the 2017 Subaru Impreza does not use a receiver drier, the accumulator it does use is just as crucial in maintaining the health and functionality of the air conditioning system. Subaru engineers have opted for this design because it suits the Impreza's air conditioning setup perfectly, providing reliable refrigeration flow control and protecting key components.

In short, the key takeaway is that when it comes to servicing your 2017 Subaru Impreza air conditioning, focus on the accumulator and the rest of the orifice tube system components. Keeping these parts in good order means you'll continue enjoying efficient, refreshing air inside your vehicle, no matter how warm it gets outside.

So, next time you get the air con checked or serviced, ask your technician about the accumulator and ensure it's inspected or replaced if necessary. It's a small step that can save you from costly repairs down the track and keep your Subaru Impreza feeling cool and comfortable year-round.