How to Replace the Cabin Air Filter on a 2018 Audi Q5 (Glovebox Removal Guide)
Step-by-step instructions with required tools, filter orientation tips, and reassembly checks for strong airflow
How to Replace the Cabin Air Filter on a 2018 Audi Q5 (Glovebox Removal Guide)
Step-by-step instructions with required tools, filter orientation tips, and reassembly checks for strong airflow


đź”§ Q5 - Cabin Air Filter Replacement
The cabin air filter cleans the air going through your A/C and heater. Replacing it helps airflow, reduces musty smells, and keeps dust/pollen out of the cabin.
Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours
⚠️ Safety & Precautions
- ⚠️ Turn ignition OFF and remove the key/fob from the vehicle.
- ⚠️ Use gentle pressure on interior panels to avoid breaking clips.
- ⚠️ Wear gloves and a dust mask if you’re sensitive to dust/pollen.
- Battery disconnect is not required for this job.
đź”§ Required Tools
You'll need the following tools for this repair:
- Torx T20 screwdriver
- Plastic trim removal tool
- Flashlight
- Nitrile gloves
- Dust mask
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Cabin air filter - Qty: 1
đź“‹ Before You Begin
- Park on level ground and set the parking brake.
- Move the passenger seat back for more working space.
- Have a flashlight ready; the filter area is tucked up behind the glovebox.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Clear the glovebox area
- Remove any items from the glovebox so nothing falls out.
- Use a flashlight to locate the passenger-side lower dash panels and glovebox edges.
Step 2: Remove the glovebox side trim panel
- Open the passenger door.
- Use a plastic trim removal tool to gently pry off the small side trim panel at the right side of the dashboard (next to the glovebox).
- Tip: Pry from the rear edge first.
Step 3: Remove glovebox fasteners
- Use a Torx T20 screwdriver to remove the visible glovebox screws along the upper edge and/or side edge (where the trim panel was).
- Keep the screws together so they go back in the same spots.
Step 4: Lower the glovebox
- Support the glovebox with one hand while you remove the last screw using the Torx T20 screwdriver.
- Carefully lower the glovebox down to access the HVAC housing behind it.
- If a small damper arm (a little slow-down strap) is attached, gently unclip it by hand—don’t force it.
Step 5: Locate and open the cabin filter cover
- Use a flashlight to find the rectangular cabin filter access cover on the HVAC box behind/above the glovebox area.
- Release the cover tabs by hand. If it’s tight, use a plastic trim removal tool to help pop the tabs free.
- (The “HVAC box” is the plastic housing that routes air for A/C and heat.)
Step 6: Remove the old cabin air filter
- Put on nitrile gloves and a dust mask.
- Slide the filter straight out. You may need to flex it slightly to clear the opening—go slow so you don’t tear it and drop debris.
- Use a flashlight to look inside the housing for leaves or dust. If needed, carefully wipe the opening with a clean rag (by hand).
Step 7: Install the new cabin air filter
- Check the airflow arrow on the new filter frame (often marked “AIR FLOW”).
- Install the filter in the same direction the old one came out.
- Slide it fully into the housing so it seats flat and doesn’t buckle.
- Tip: A crooked filter can cause whistling noises.
Step 8: Reinstall the cover and glovebox
- Reinstall the filter cover and press until the tabs click in.
- Lift the glovebox back into position.
- Reinstall all screws using a Torx T20 screwdriver (snug only—do not over-tighten into plastic).
- Reinstall the side trim panel by aligning the clips and pressing it in by hand.
âś… After Repair
- Start the engine and turn the fan to medium, then high.
- Verify strong airflow from the vents and no rattles from the glovebox area.
- If you smell old dust for a minute, that’s normal as the system clears out.
đź’° DIY vs Shop Cost
Shop Cost: $120-$220 (parts + labor)
DIY Cost: $25-$60 (parts only)
You Save: $60-$195 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 hours.
🎯 Ready to get started?
HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.
















