Parts for your 2017 Subaru Forester-Receiver driers

Understanding the Role of Receiver Driers in the 2017 Subaru Forester

For those who own or work on a 2017 Subaru Forester, the question often pops up about whether this vehicle uses a receiver drier as part of its air conditioning system. After referencing various technical manuals and automotive sources, it turns out the 2017 Subaru Forester actually does not use a receiver drier. Instead, it relies on what is known as a receiver/drier or accumulator system depending on the exact model and trim. Let's break down why this is the case and what it means for maintenance and servicing.

In automotive A/C systems, receiver driers are typically found in vehicles with a thermal expansion valve (TXV) system. They act as a moisture trap and filtration unit for refrigerant, and help ensure that only liquid refrigerant reaches the expansion valve. The 2017 Subaru Forester uses an orifice tube system in its air conditioning setup rather than a TXV. This is an important distinction because the orifice tube system utilises an accumulator instead of a receiver drier.

The accumulator serves a similar purpose but is designed to work with the orifice tube system. It collects excess liquid refrigerant and moisture, preventing liquid refrigerant from reaching the compressor, which can cause damage. Because of this different system design, a separate receiver drier is not necessary on the 2017 Subaru Forester.

So why does this matter? Well, knowing the difference between an accumulator and a receiver drier helps mechanics and Subaru owners understand what parts to look out for during servicing. It also clarifies any confusion when sourcing parts or following maintenance schedules. For the 2017 Forester, maintenance will involve paying attention to the accumulator, not a receiver drier.

Now, for those curious about what receiver driers do and when or why they would be replaced if they were fitted, here's a closer look at their purpose and maintenance tips - useful information for owners of other vehicles that do have these components.

Receiver driers are an essential part of older and some current air conditioning systems found in vehicles worldwide. The main job of the receiver drier is to act as both a moisture remover and a temporary storage container for refrigerant. It protects the system by keeping moisture and contaminants from damaging sensitive components such as the compressor and expansion valve. Moisture inside an A/C system can cause corrosion and freeze-up problems, so the desiccant inside the receiver drier plays a vital role in absorbing it.

Another important function is filtering out any debris or particles that could clog the system. Over time, the desiccant material inside the receiver drier absorbs moisture and can become saturated or break down, so replacing it during certain service intervals is crucial to keeping the system running smoothly.

For owners of vehicles fitted with a receiver drier, such as models with a thermal expansion valve A/C system, here are some handy guidelines when servicing the air conditioning system:

• Replacing the receiver drier is recommended whenever the system is opened up for repair, such as during compressor replacement, to prevent contaminants from re-entering the system.
• If a refrigerant leak is detected around the drier or liquid lines, the drier should be inspected and typically replaced to avoid moisture contamination.
• During regular A/C servicing, especially when performance issues arise, checking the drier's condition can help identify moisture-related problems.
• Use only manufacturer-specified replacement parts to ensure compatibility and optimal system function.

Although the 2017 Subaru Forester does not have a receiver drier, understanding its role across other vehicles helps put things in perspective. Because Subaru uses an orifice tube system with an accumulator on this model, the key focus during maintenance is making sure the accumulator is in good condition, free of leaks, and replaced if necessary. This keeps the refrigerant flowing correctly and protects the compressor from damage caused by liquid refrigerant or moisture in the system.

All in all, while the 'receiver drier' term often comes up in air conditioning discussions, it's the specific cooling system design that dictates whether a vehicle needs one or an accumulator instead. On the 2017 Subaru Forester, owners and technicians can rest easy knowing that the air conditioning system's moisture and debris control comes from the accumulator, not a receiver drier.