Guide to the 2010-2017 Audi A5 A/C Condenser and Receiver Drier Assembly
If your A5's air conditioning is weak, understanding this essential part is the first step to a cold cabin.
- On the 2010-2017 A5, the receiver drier is part of the A/C condenser and must be replaced as a single unit.
- Always replace the condenser/drier assembly when any other A/C component (like the compressor or evaporator) is replaced.
- Weak A/C could also be caused by a faulty pressure sensor (G395), a known issue on these cars.
- Aftermarket condenser assemblies offer significant savings over OEM parts and are a practical choice for this repair.
Is Your Audi A5 A/C Not Blowing Cold?
When your A5's air conditioning stops cooling, many owners suspect a refrigerant leak or a bad compressor. However, a failing A/C receiver drier can cause the same symptoms. On the 2010-2017 Audi A5, this part is not sold separately. It is built into the A/C condenser as a single unit. This means if your drier needs replacement, you must replace the entire condenser assembly.
Pro Tip: It is mandatory to replace the receiver drier (and therefore the entire condenser assembly on this vehicle) any time the A/C system is opened for service. Exposing the system to outside air will saturate the old drier with moisture, making it useless. Reusing an old drier after a repair is a common mistake that leads to repeat failures.
Symptoms of a Failing Receiver Drier
A bad receiver drier can cause several problems. The most common is simply poor cooling performance. You might also notice:
- A/C blows warm or only slightly cool air.
- A moldy or musty smell from the vents when you turn on the A/C.
- Rattling noises from the front of the engine bay. This could be a sign the desiccant bag inside has broken, which is a critical failure that can spread debris through the entire system.
- Visible oily residue on the condenser fins, indicating a refrigerant leak.
Known Issues for 2010-2017 Audi A5
Before replacing the condenser, be aware of a common issue outlined in Audi's Technical Service Bulletins (TSBs). Many A/C problems on this car are caused by a faulty A/C Pressure/Temperature Sensor (G395). This sensor can leak, send bad signals to the computer that shut off the compressor, or even cause your battery to drain. Since the symptoms are identical to a bad drier, it's wise to have a mechanic check or replace this relatively inexpensive sensor first.
🎬 Watch: How to locate and replace the G395 sensorChoosing the Right Aftermarket Part
Since you must replace the entire condenser to service the drier, choosing a quality part is important. You have two main choices: OEM from the dealer or an aftermarket assembly.
- OEM (Original Equipment Manufacturer): This is the part you would get from an Audi dealership. The quality and fit are guaranteed, but the cost is very high. The list price for just the small desiccant bag can be over $150.
- Aftermarket (Four Seasons, Global Parts, etc.): Aftermarket brands produce complete condenser and drier assemblies that are a direct fit. Brands like Four Seasons and Global Parts Distributors are established names in the A/C parts industry. For a part like this, a quality aftermarket assembly provides the best value, often costing less than just the OEM desiccant bag alone.
| Part | Brand Tier | Our Price Range | Notes |
|---|---|---|---|
| A/C Receiver Drier / Desiccant Element | Aftermarket (Four Seasons, Global Parts) | $13.29 - $22.14 | This is for the desiccant bag only. On the A5, this part is integrated into the condenser. It is more practical to buy a complete condenser/drier assembly. | 🎬 See a walkthrough of the compressor and condenser replacement
Frequently Asked Questions
Can I just replace the desiccant bag and not the whole condenser?
While some kits are sold with just the bag, the job requires removing the entire condenser from the vehicle and opening the sealed drier housing. This adds labor and risk. It is almost always more efficient and reliable to replace the complete condenser/drier assembly.
When should the receiver drier be replaced?
It must be replaced whenever the A/C system is opened for a repair, such as replacing a compressor, hose, or evaporator. It is a maintenance part, like an oil filter, that should not be reused once exposed to air.
Is replacing the A/C condenser a DIY job?
This is an advanced DIY job. It requires specialized equipment to safely evacuate and recharge the refrigerant. The process also involves removing the front bumper cover and other components to access the condenser. 🎬 Watch: Step-by-step guide to removing the front bumper cover For most owners, this job is best left to a qualified mechanic.
My A/C works sometimes, but not always. Could it be the drier?
Intermittent cooling is more often a sign of an electrical issue, such as the faulty G395 pressure sensor mentioned in Audi's TSBs, or a compressor clutch problem. A clogged or saturated drier typically causes consistently poor cooling.
Helpful Videos
Technical Specifications
OEM Part Numbers: 8K0298403A 8K0298403B
Integrated with A/C Condenser. Contains desiccant material to absorb moisture.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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