2021 Audi Q5 Fuses and Fuse Box Diagram User Guide
The 2021 Audi Q5 fuses and fuse box diagram will be covered in this blog, along with information on their locations, purposes, and how to find and replace defective fuses for the best possible vehicle performance.
2023 Audi Q5 Review, Price, Features and Mileage (Brochure)
Video: 2021 Audi Q5 Fuses
Fuses 
fuse that has blown will have metal strips that have burned through.
The fuses are located in the footwell under the foot rest (left-hand drive vehicle) (A) or behind the cover (right-hand drive vehicle) B. Additional fuses are located on the front side of the cockpit (driver’s side) C and under the left cover in the luggage compartment D.
- Switch the ignition and all electrical equipment off.
- Check the table that follows to see which fuse belongs to the equipment.
- Remove the screwdriver and the reversible Torx bit from the vehicle tool kit.
- Remove the footrest or the corresponding cover.
- Remove the colored plastic clip from the fuse panel, if necessary > page.
- Remove the clip from the rear side of the cover
- Remove the fuse using the clip.
- Replace the blown fuse only with a fuse that has the same amp rating.
- Reinstall the plastic bracket.
- Reattach the footrest or the cover.
Fuse color identification
| Fuse panel (red) | ||
| No. | Equipment | – |
| Black | 1 | – |
| Gray | 2 | – |
| Prple | 3 | – |
| Pink | 4 | – |
| Light brown | 5 | – |
| Brown | 7.5 | – |
| Red | 10 | – |
| Light blue | 15 | – |
| Yellow | 20 | – |
| White or transparent | 25 | – |
| Light green | 30 | – |
| Teal | 35 | – |
| Orange | 40 | – |
| Red (Wide) | 50 | |
Warning
Do not repair fuses and never replace a blown fuse with one that has a higher amp rating. This can cause damage to the electrical system and increase the risk of fire.
Note
If a new fuse burns out again shortly after you have installed it, have the electrical system checked as soon as possible by an authorized Audi dealer or authorized Audi Service Facility.
Tips
Some of the equipment listed in the following tables applies only to certain model versions or certain optional equipment.
Fuse Assignment – Driver’s/front Passenger’s footwell
|
Fuse panel A (brown) |
|
|
No. |
Equipment |
|
1 |
Catalytic converter heating |
|
2 |
Engine components |
|
3 |
Exhaust doors, fuel injectors, radiator in- let, crankcase housing heating |
|
4 |
Vacuum pump, hot water pump, NOx sen- sor, particulate sensor, biodiesel sensor, exhaust doors |
|
5 |
Brake light sensor |
|
6 |
Engine valves, camshaft adjustment |
|
7 |
Heated oxygen sensors, mass airflow sen- sor, water pump |
|
8 |
Water pump, high pressure pump, high pressure regulator valve, temperature valve, engine mount |
|
9 |
Hot water pump, motor relay, 48 V drive- train generator, 48 V water pump |
|
10 |
Oil pressure sensor, oil temperature sensor |
|
11 |
Clutch position sensor, 48 V drivetrain generator, water pump, 12 V drivetrain generator |
|
12 |
Engine valves, engine mount |
|
13 |
Engine cooling |
|
Fuse panel A (brown) |
|
|
14 |
Fuel injectors, engine control module |
|
15 |
Ignition coils, heated oxygen sensors |
|
16 |
Fuel pump |
|
Fuse panel B (red) |
|
|
No. |
Equipment |
|
1 |
Anti-theft alarm system |
|
2 |
Engine control module |
|
3 |
Left front seat electronics, lumbar sup- port, massaging seat |
|
4 |
Automatic transmission selector lever |
|
5 |
Horn |
|
6 |
Parking brake |
|
7 |
Diagnostic interface |
|
8 |
Roof electronics control module |
|
9 |
Emergency call module |
|
10 |
Airbag control module |
|
11 |
Electronic Stabilization Control (ESC), An- ti-Lock Braking System (ABS) |
|
12 |
Diagnostic connection, light/rain sensor |
|
13 |
Climate control system |
|
14 |
Right front door control module |
|
15 |
Climate control system compressor |
|
16 |
Brake system pressure reservoir |
|
Fuse panel C (black) |
|
|
No. |
Equipment |
|
1 |
Front seat heating |
|
2 |
Windshield wipers |
|
3 |
Left headlight electronics |
|
4 |
Panoramic glass roof |
|
5 |
Left front door control module |
|
6 |
Sockets |
|
7 |
Right rear door control module, right rear power window |
|
8 |
All wheel drive control module |
|
9 |
Right headlight electronics |
|
10 |
Windshield washer system/headlight washer system control module |
|
Fuse panel C (black) |
|
|
11 |
Left rear door control module, left rear power window |
|
12 |
Parking heater |
|
Fuse panel D (black) |
|
|
No. |
Equipment |
|
1 |
Front seat electronic, seat ventilation, rearview mirror, rear climate control sys- tern control panel, windshield heating, di- agnostic connection |
|
2 |
Diagnostic interface, vehicle electrical sys- tern control module |
|
3 |
Sound generator |
|
4 |
Clutch position sensor |
|
5 |
Engine start, emergency shut-off |
|
6 |
Diagnostic connection, traffic information antenna (TMC) |
|
7 |
USB input |
|
8 |
Garage door opener |
|
9 |
Audi adaptive cruise control, distance reg- ulation |
|
10 |
Exterior sound, active accelerator pedal |
|
11 |
Front camera |
|
12 |
Right headlight |
|
13 |
Left headlight |
|
14 |
Transmission fluid cooling |
|
15 |
Alarm and hands-free calling system |
|
Fuse panel E (red) |
|
|
No. |
Equipment |
|
1 |
Ignition coils |
|
2 |
Climate control system compressor |
|
5 |
Left headlight |
|
6 |
Automatic transmission |
|
7 |
Instrument panel |
|
8 |
Climate control system blower |
|
9 |
Right headlight |
|
10 |
Dynamic steering |
|
11 |
Engine start, thermal management |
|
12 |
Oil pump |
Fuse assignment – Driver’s side of the cockpit
|
Fuse panel |
|
|
No. |
Equipment |
|
4 |
Head-up display |
|
5 |
Audi music interface, USB input |
|
6 |
Front climate control system control panel |
|
7 |
Steering column lock |
|
8 |
Center display |
|
9 |
Instrument cluster |
|
10 |
Volume control |
|
11 |
Light switch, switch module |
|
12 |
Steering column electronics |
|
14 |
Infotainment system |
|
15 |
Steering column adjustment |
|
16 |
Steering column electronics, steering wheel heating |
Fuse assignment – Left side of the luggage compartment
|
Fuse panel A (black) |
|
|
No. |
Equipment |
|
1 |
Thermal management, coolant pumps |
|
2 |
Windshield defroster |
|
3 |
Windshield defroster |
|
5 |
Air suspension/suspension control |
|
6 |
Automatic transmission |
|
7 |
Rear window defogger |
|
8 |
Rear seat heating |
|
9 |
Left tail lights |
|
10 |
Airbag control module |
|
11 |
Luggage compartment lid lock, fuel filler door lock, convenience system control module |
|
12 |
Luggage compartment lid |
|
Fuse panel B (red) |
|
|
No. |
Equipment |
|
2 |
High-voltage battery |
|
3 |
High-voltage battery water pump |
|
4 |
Electric motor |
|
Fuse panel B (red) |
|
|
6 |
Electric compressor |
|
8 |
Climate control system compressor |
|
9 |
Temperature control |
|
10 |
High-voltage battery |
|
11 |
Charging device |
|
Fuse panel C (brown) |
|
|
No. |
Equipment |
|
1 |
Exterior antenna |
|
2 |
Audi phone box |
|
3 |
Right front seat electronics, lumbar sup- port, massaging seat |
|
4 |
Side assist |
|
6 |
Tire pressure monitoring system |
|
7 |
Convenience access and start authoriza- tion control module |
|
8 |
Auxiliary heating, tank module |
|
9 |
Climatized cup holder |
|
10 |
TV tuner, data exchange and telematics control module |
|
11 |
Auxiliary battery control module |
|
12 |
Garage door opener |
|
13 |
Rearview camera, peripheral cameras |
|
14 |
Right tail lights |
|
16 |
Airbag control module |
|
Fuse panel E (red) |
|
|
No. |
Equipment |
|
3 |
Exhaust treatment |
|
5 |
Right trailer hitch light |
|
7 |
Trailer hitch |
|
8 |
Left trailer hitch light |
|
9 |
Trailer hitch socket |
|
10 |
All wheel drive control module, sport dif- ferential |
|
11 |
Exhaust treatment |
How to Replace the Fuse of the 2021 Audi Q5
Replacing the fuses in your 2021 Audi Q5 is a straightforward process, but it’s important to follow the proper steps to ensure safety and that you replace the correct fuse. Here’s how you can do it:
Materials:
- The new fuse of the correct amperage.
- Fuse puller or needle-nose pliers.
Steps to Replace Fuses
1. Locate the Fuse Box
- The 2021 Audi Q5 has two main fuse boxes:
- Interior Fuse Box: Located on the driver’s side, near the dashboard. You may need to open the driver’s side door and remove the panel that covers the fuse box.
- Engine Compartment Fuse Box: Located in the engine bay, typically near the battery or the front section of the engine bay.
2. Identify the Fuse to Replace
- The fuse diagram on the fuse box cover to locate the specific fuse that needs replacement.
- Fuse diagrams are often printed inside the fuse box cover, indicating the function of each fuse.
3. Turn Off the Ignition
- Ensure the ignition is turned off, and remove the key from the ignition to avoid any electrical accidents.
4. Remove the Fuse Box Cover
- Use your hands or a flat tool to carefully remove the fuse box cover, being careful not to break any clips.
5. Extract the Blown Fuse
- Use a fuse puller (usually provided inside the fuse box) or a pair of needle-nose pliers to remove the faulty fuse.
- Inspect the fuse. If the metal strip inside is broken or burned, it indicates the fuse is blown.
6. Insert the New Fuse
- Match the new fuse with the same amperage.
- Insert the new fuse into the slot, ensuring it fits securely.
7. Reattach the Fuse Box Cover
- Once the fuse is replaced, carefully replace the fuse box cover.
8. Test the New Fuse
- Turn on the vehicle and check if the affected electrical system is functioning properly.
Tips:
-
- Always use a fuse with the correct amperage rating to prevent electrical issues or damage to the vehicle.
Useful Links:
View Full PDF: 2021 Audi Q5 Owner’s Manual | Auto User Guide
2021 Audi Q5 Warning Lights and Indicator User Guide
2021 Audi Q5 Engine Oil and Fluid User Guide