Audi A6 C7 4G (2011-2018) – Fuse Box Diagrams and Relays

Audi A6 C7 (Type 4G, 2011-2018) has fuse panels at both ends of the dashboard and behind the right-hand luggage compartment trim. Depending on the engine and market, additional power distribution and engine-electronics protection may be fitted in the plenum chamber below the windscreen. The circuits can differ by model year, engine, equipment and body style.

This guide keeps the 2015 model-year layout separate from the later arrangement documented for 2016. That distinction is important for the blower, MMI, 12 V outlets and numerous control modules. Do not rely on the physical appearance of a fuse carrier alone: check the production date, equipment and actual fuse cover legend.

Where are the Audi A6 C7 fuse boxes?

Left dashboard: with the ignition off, open the left front door, then carefully unclip the side cover of the dashboard. The three fuse strips A, B and C are behind this access panel. In left-hand-drive cars, this is the driver’s side.

Right dashboard: open the right front door and remove the plastic cover at the far end of the dashboard. The two fuse carriers A and B are accessible without removing the glovebox.

Luggage compartment: open the boot or tailgate and lift or fold back the right-side trim panel. Certain vehicles require the lower fixings to be released. The fuse sections are labelled A through F, and some configurations have additional relays.

Always switch off the ignition before replacing a fuse. Ratings separated by a slash are alternatives for specific installations, not a range from which to choose. A dash can mean an empty position or an unverified universal rating; use the fitted vehicle’s markings to decide which applies.

Fuse box diagrams and tables – Audi A6 C7 2016 configuration

Left dashboard – fuse carriers A, B and C (2016)

Carrier A includes steering, starter and driver-assistance circuits; B covers passenger-compartment and comfort electronics; C includes powertrain, door, wiper and lighting functions. Lettered carrier designations and position numbers must be read together.

Right dashboard – carriers A and B (2016)

Carrier A protects selected infotainment equipment, while carrier B covers climate control, diagnostics and steering column electronics. Several unused positions are intentionally listed.

Right luggage compartment – carriers A-F (2016)

These carriers include parking-brake circuits, rear and front door equipment, seat heating, sound and telematics modules, tailgate electronics and equipment-specific slots. The exact fitted fuses vary with engine, specification and body style.

Relays and high-current protection – selected 2016 variants

Relay sockets are shown with a dash for amperage; the CAN disconnect connector U1 is a wiring component rather than a blade fuse.

2015 model-year fuse assignment – separate configuration

The earlier 2015 arrangement can use different functions at corresponding fuse numbers. The next three complete charts retain all spare sockets and alternative equipment-dependent ratings. The 2016 illustrations above show similar physical carriers, but do not prove identical electrical assignments.

Left dashboard fuse box – 2015

Left-side carriers A, B and C include the starter, engine and transmission related feeds, dynamic steering, door modules, seats and the front wiper motor.

Right dashboard fuse box – 2015

For 2015, the right-side A carrier includes the 40 A blower supply at A2. The B carrier includes display and MMI equipment, head-up display and selected adaptive lighting electronics.

Luggage compartment fuse box – 2015

This version retains a separate allocation for 12 V sockets at B3 and B4, along with the parking brake, door control systems, audio electronics, air suspension and optional rear accessories.

Plenum chamber fuse protection and engine differences

Certain petrol and diesel engine electronic control units have additional fuses or relays in the plenum chamber near the base of the windscreen. These circuits cover engine-management controllers, sensors and pumps. Layouts can differ between 2.0 TFSI, 3.0 TFSI and TDI engines as well as right-hand-drive variants. Match the fuse assignment to the engine code; a single generic engine-bay table would be misleading.

Common Audi A6 C7 fuse problems

Blower does not run: in the documented 2016 layout check right-dashboard B2 (40 A); in the 2015 chart check right-dashboard A2 (40 A). If the correct fuse is intact, inspect the blower motor, control unit and power supply.

No power at the 12 V sockets: in 2015 examine luggage compartment B3 and B4 (20 A). In the later configuration, socket-related circuits can appear at rear carrier C7 and be controlled by relay R3.

The starter will not operate: the documented left-dashboard A16 (40 A) protects a starter circuit in these arrangements. Also check the battery, start relay, transmission interlock and diagnostic trouble codes.

A replacement fuse blows immediately: investigate a short circuit, damaged connector or overloaded consumer. Never bridge the fuse with wire or substitute a higher amp rating.

Why does the same fuse number have different functions in 2015 and 2016?

Audi modified fuse assignments as equipment and electronic systems changed. Compare model year, market, body style, engine code and fuse carrier identification before using a diagram.

Does the Audi A6 C7 have fuses under the bonnet?

Some versions include supplementary protection for engine electronic systems in the plenum chamber. The three main owner-accessible fuse groups described in this guide are at both ends of the dashboard and behind the right side of the luggage compartment.

Do not substitute older A6 C5 diagrams or fuse layouts from other Audi platforms. For additional English guides, see the Audi fuse box diagrams section.

Reference basis: Audi A6/S6 Type 4G owner information for model years 2015 and 2016 and the relevant equipment-specific fuse / relay assignments. Confirm the rated fuse against the actual car.