Audi Q7 Fuse Box Diagram, Location & Fuse Replacement Guide
You’re driving your Audi Q7, and suddenly the radio goes silent, the windows won’t roll down, or that warning light pops up on the dashboard. Now you’re stuck wondering where to even start looking.
Fuses are the unsung heroes of your Q7’s electrical system. When one blows, it’s usually a cheap and easy fix—if you know where to look. This guide covers the three main fuse box locations, what each fuse does, and how to replace them safely.
Where to Find the Fuse Boxes
The Audi Q7 has multiple fuse boxes depending on your model year . The second-generation Q7 (2016–present) has three main locations :
Passenger Compartment (Cabin)
- Driver’s side cockpit: On the front side of the dashboard on the driver’s side .
- Footwell: Under the footrest on left-hand drive vehicles . For right-hand drive vehicles, it’s behind a cover in the front passenger footwell .
Luggage Compartment (Trunk)
- Located behind the floor panel on the left side of the rear compartment .
Fuse Box Diagrams: What Each Fuse Does
Cockpit Fuse Panel (Driver’s Side Dashboard)
This panel handles interior electronics and convenience features .
| Fuse No. | Description |
|---|---|
| 2 | Telephone / Audi phone box |
| 4 | Head-up display |
| 5 | Audi music interface, USB charging port |
| 7 | Steering column lock |
| 8 | Infotainment display |
| 9 | Instrument cluster |
| 10 | Infotainment unit / MMI drive |
| 11 | Light switch |
| 12 | Steering column electronics |
| 14 | MMI Infotainment system |
| 15 | Power steering column adjustment |
| 16 | Steering wheel heating |
Footwell Fuse Panel
This is where you’ll find fuses for the engine management, climate control, and safety systems .
Fuse Panel A (Brown)
| Fuse No. | Description |
|---|---|
| A2 | Mass airflow sensor, camshaft adjustment |
| A5 | Brake light sensor |
| A10 | Oil pressure sensor, oil temperature sensor |
| A13 | Radiator fan / Engine cooling |
| A14 | Fuel injectors |
| A15 | Ignition coils |
| A16 | Fuel pump |
Fuse Panel C (Black)
| Fuse No. | Description |
|---|---|
| C1 | Front seat heating |
| C2 | Windshield wipers |
| C3 | Left headlight electronics |
| C4 | Panoramic glass roof |
| C5 | Left front door control module |
| C6 | Sockets (12V outlets) |
| C9 | Right headlight electronics |
| C10 | Windshield washer system |
Luggage Compartment Fuse Panel
This panel controls rear lighting, audio, and convenience features .
Fuse Panel A (Black)
| Fuse No. | Description |
|---|---|
| A5 | Air suspension |
| A6 | Automatic transmission control |
| A8 | Rear seat heating |
| A9 | Left tail light |
| A10 | Seat belt tensioner (driver’s side) |
| A11 | Central locking system |
| A12 | Power luggage compartment lid |
Fuse Panel B (Red)
| Fuse No. | Description |
|---|---|
| B1 | Rear climate control blower |
| B2 | Sound amplifier (premium audio) |
| B4 | Rear climate control panel |
| B5 | Trailer hitch (right light) |
| B8 | Trailer hitch (left light) |
| B10 | Sport differential |
| B12 | Third row seats |
Generation Differences
First-generation Q7 (2007–2015)
These models have additional fuse boxes in the engine compartment and under the driver’s seat . The main fuse box is located under the driver’s seat on the battery .
Second-generation Q7 (2016–present)
The diagrams above apply to these models. The engine compartment fuses are more limited in this generation, with most being in the cabin and trunk .
How to Replace a Blown Fuse
Follow these steps to safely replace a fuse :
- Turn off the ignition and all electrical equipment .
- Check the diagram to identify which fuse belongs to the failed component.
- Remove the appropriate cover:
- For the footwell, remove the footrest or cover panel .
- Use the clip from the inside of the cover to pull the fuse .
- Inspect the fuse: A blown fuse has a broken metal strip inside .
- Replace with the same rating: Only use a fuse with the same amp rating . The color tells you the rating:
- Purple: 3A
- Brown: 7.5A
- Red: 10A
- Blue: 15A
- Yellow: 20A
- Green: 30A
- Orange: 40A
- Reinstall the cover and test the component.
Safety Warnings
- Never repair a fuse or replace it with a higher amp rating—this can cause electrical damage and create a fire risk .
- If a new fuse blows again shortly after replacement, have the electrical system checked by an authorized Audi dealer .
Frequently Asked Questions
Q: Where are the fuses located in the Audi Q7?
A: There are three main locations: the driver’s side cockpit, the footwell (under the footrest for LHD vehicles), and the left side of the luggage compartment .
Q: How do I know which fuse is blown?
A: A blown fuse will have a visible break in the metal strip inside the fuse .
Q: Can I replace a fuse with a different amp rating?
A: No. Always replace with a fuse of the same amp rating to avoid electrical system damage .
Q: What if the new fuse blows right away?
A: If a new fuse blows immediately, there’s likely an electrical fault that needs professional diagnosis .
Q: Where is the Audi Q7 amplifier fuse?
A: The sound amplifier fuse is located in the luggage compartment fuse panel (Fuse Panel B, №2) .
Q: Does the first-generation Q7 have the same fuse locations?
A: No. The first-generation Q7 (2007–2015) has fuses in the engine compartment and under the driver’s seat on the battery .