2021 AUDI Q5 fuel pump

80B012721BA
Checking and Filling

ing procedure


Fig. 165 Right rear side of the vehicle: opening the fuel
filler door



Fig. 166 Fuel filler door with attached fuel cap
The fuel filler door is unlocked or locked by the
central locking system.
>» Unlock the vehicle if necessary.
> Conventional drive system: Press on the left
side of the fuel filler door to open it > fig. 165.
> Plug-in hybrid drive: Pull on the EV switch in the
driver's door. The fuel filler door will open auto-
matically after venting is complete.
> Unscrew the tank cap counterclockwise.
> Place the cap from above on the open fuel filler
door > fig. 166.
> Plug-in hybrid drive: Note the information for
refueling at the end of this chapter.
> Insert the fuel pump nozzle all the way into the
fuel filler neck.
> Begin fueling. Once the fuel pump nozzle turns
off the first time, the fuel tank is full. Do not
continue fueling, or else the expansion space in
the tank will be filled with fuel.
> After the fuel pump has switched off, wait five
seconds before removing the nozzle to allow

1) Depending on the engine and country
the rest of the fuel to finish dripping into the
fuel tank.
> Turn the fuel cap clockwise until it clicks into
place.
> Close the fuel filler door and then press on the
left side until it latches.
The correct fuel type for your vehicle can be
found ona label located on the inside of the fuel
filler door. For additional information on fuel, see
=> page 241.
For the tank capacity in your vehicle, refer to the
Technical Data > page 313.
To reduce the risk of fuel leaking out or vapors
escaping, make sure that the fuel tank is closed
correctly. Otherwise the ES indicator light will
turn on.

ZA WARNING
Improper fueling procedures and improper
handling of fuel can lead to explosions, fires,
severe burns, and other injuries.
— Do not smoke. Keep away from open flames.
— The ignition must be switched off when re-
fueling.
— Mobile devices, radio devices, and other ra-
dio equipment should always be switched
off when refueling. Electromagnetic rays
could cause sparks and start a fire.
— If you do not insert the fuel pump nozzle all
the way into the filler tube, then fuel can
leak out. Spilled fuel can ignite and start a
fire.
— Never get into the vehicle when refueling. If
there is an exceptional situation where you
must enter the vehicle, close the door and
touch a metal surface before touching the
fuel pump nozzle again. This will reduce the
risk of electrostatic discharge that can cause
flying sparks. Sparks can start a fire when
refueling.

ZA WARNING
Audi does not recommend transporting fuel

containers inside the vehicle. Fuel could leak

243

Checking and Filling


out of the container and ignite, especially dur-
ing an accident. This can cause explosions,
fires, and injuries.
— If you must transport fuel in a fuel contain-
er, note the following:
— Always place the fuel container on the
ground before filling. Never fill the fuel
container with fuel while it is inside or on
the vehicle. Electrostatic discharge can oc-
cur while refueling and the fuel vapors
could ignite.
— When using fuel containers made of met-
al, the fuel pump nozzle must always re-
main in contact with the container to re-
duce the risk of static charge.
— Insert the fuel pump nozzle as far as pos-
sible into the filler opening while refuel-
ing.
— Follow the applicable legal regulations in
the country where you are driving when
using, storing and transporting fuel con-
tainers.
— Make sure that the fuel container meets
the industry standards, for example ANSI
or ASTM F852-86.

©) Note
— Remove fuel that has overflowed onto any
vehicle components immediately to reduce
the risk of damage to the vehicle.
— Never drive until the fuel tank is completely
empty. The irregular supply of fuel that re-
sults from that can cause engine misfires.
Uncombusted fuel may enter the exhaust
system and increase the risk of damage to
the catalytic converter.
@) For the sake of the environment
— Do not overfill the fuel tank, or fuel could
leak out when the vehicle is warming up.
— Fuel should never enter the sewer system or
come into contact with the ground.
@) Tips
The fuel filler door on your vehicle does not
lock if you lock the vehicle from the inside us-
ing
the central locking switch.
244
G) Tips
Applies to: vehicles with plug-in hybrid drive
— When inserting the fuel pump nozzle, make
sure that you do not press on the fuel filler
door opener @) with the fuel pump nozzle.
See the label in the fuel filler door @)
> fig. 166. Otherwise, a valve will close in
the fuel filler neck and fueling will stop even
if the tank is not full.
— You must vent the tank system again if you
press on the fuel filler door opener. The fuel
pump nozzle can stay in the fuel filler neck
when doing this. Vent the tank system by
pulling the EQ) switch in the driver's door
again.
— If the engine turned off because the fuel
level was too low, then you may need to re-
fuel with up to 4.0 gallons (15 liters) of fuel
in order for the vehicle to detect the new
fuel level. Otherwise, the engine may not
restart.
— Fuel can age and may lead to problems
when starting. Audi recommends replacing
the fuel in your vehicle within six months.

80B012721BA

Checking and Filling

Fuel filler door emergency release

Applies to: vehicles with manual fuel filler door release
If the central locking system malfunctions, the
fuel filler door can be unlocked manually.
BFY-0028
Fig. 167 Right side trim panel in the luggage compart-
ment: opening the trim panel



Fig. 168 Luggage compartment: fuel filler door emergency
release
The emergency opening mechanism is located
behind the right side trim panel in the luggage
compartment.
> Open the cover in the side panel > fig. 167.
> To unlock the fuel filler door, loosen the red
loop from the retainer and then pull on the
loop carefully > fig. 168 >©.
> Press on the left side of the fuel filler door to
open it > page 243, fig. 165.
@) Note
Only pull on the loop until you feel resistance.
You
will not hear it release. If you continue to
pull, you could damage the emergency re-
lease mechanism.
iG) Tips
Applies to: vehicles with plug-in hybrid drive
— The tank will not be vented if the emergency
release function was used on the fuel filler
door. You can only fill a small amount of
fuel in the tank. Fill only until the fuel pump
nozzle turns off for the first time. Drive to
an authorized Audi dealer or authorized
Audi Service Facility immediately to have
the malfunction corrected.
— Pressure can escape if you open the tank cap
after using the emergency release. This can
create noises.
Emissions control
system
General information
Z\ WARNING
The temperature of the exhaust system is
high, both when driving and after stopping
the engine.
— Never touch the exhaust tail pipes once they
have become hot. This could result in burns.
— Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the emissions sys-
tem could start a fire.
— Do not apply underbody protectant in the
exhaust system area, because this increases
the risk of fire.
Catalytic converter
Observe the safety precautions > page 245, Gen-
eral information.



The vehicle may only be driven with unleaded
gasoline, or the catalytic converter will be de-
stroyed.
Never drive until the tank is completely empty.
The irregular supply of fuel that results from that
can cause engine misfires. Uncombusted fuel
could enter the exhaust system, which could
cause overheating and damage to the catalytic
converter.
245

Fuses and bulbs

@) 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 Facili-
ty.
G@) Tips
— The following table does not list fuse loca-
tions that are not used.
— Some of the equipment listed in the follow-
ing tables applies only to certain model ver-
sions or certain optional equipment.

Fig. 198 Driver's footwell (left-hand drive vehicle): fuse
panel with plastic clip
300
3 2
= & a

a
Ss $
2 8

Fig. 199 Front passenger's footwell (right-hand drive vehi-
cle): fuse panel with plastic clip

Fuse panel


No. | Equipment

Catalytic converter heating

2 |Engine components

Exhaust doors, fuel injectors, radiator in-
let, crankcase housing heating

Vacuum pump, hot water pump, NOx sen-
4 |sor, particulate sensor, biodiesel sensor,
exhaust doors

Brake light sensor

6 | Engine valves, camshaft adjustment

Heated oxygen sensors, mass airflow sen-
sor, water pump

Water pump, high pressure pump, high
8 | pressure regulator valve, temperature
valve, engine mount

Hot water pump, motor relay, 48 V drive-
train generator, 48 V water pump

10 | Oil pressure sensor, oil temperature sensor

Clutch position sensor, 48 V drivetrain
11 | generator, water pump, 12 V drivetrain
generator

12 | Engine valves, engine mount


13 | Engine cooling

80B012721BA
Fuses and bulbs











































Fuse panel (4) (brown) Fuse panel © (black)
14 | Fuel injectors, engine control module 1 Left rear door control module, left rear
15 | Ignition coils, heated oxygen sensors power window
16 | Fuel pump 12 | Parking heater
Fuse panel (8) (red) Fuse panel (©) (black)
No. | Equipment No. | Equipment
Anti-theft alarm system Front seat electronic, seat ventilation,
2. [Engine control module 1 rearview mirror, testclimate control sys-
tem control panel, windshield heating, di-
3 Left front
seat electronics, lumbar sup- agnostic connection
port, massaging seat a A 7
Diagnostic interface, vehicle electrical sys-
4 |Automatic transmission selector lever 2 tem-control module
5 [Horn 3 |Sound generator
6 | Parking brake 4 |Clutch position sensor
7 | Diagnostic interface 5 | Engine start, emergency shut-off
8 | Roof electronics control module Diagnostic connection, traffic information
9 |Emergency call module 6 antenna (TMC)
10 | Airbag control module 7 |USB input
11 Electronic Stabilization Control (ESC), An- 8 | Garage door opener
ti-Lock Braking System (ABS) Audi adaptive cruise control, distance reg-
12 | Diagnostic connection, light/rain sensor 2 ulation
13 | Climate control system 10 | Exterior sound, active accelerator pedal
14 | Right front door control module 11 | Front camera
15 | Climate control system compressor 12 | Right headlight
16 | Brake system pressure reservoir 13 | Left headlight
Fuze panel © (black) 14 |Transmission fluid cooling
No. | Equipment 15 |Alarm and hands-free calling system
1 | Front seat heating Fuse panel (©) (red)
2 |Windshield wipers No. | Equipment
3 |Left headlight electronics 1 {Ignition coils
4 | Panoramic glass roof 2 |Climate control system compressor
5 |Left front door control module 5 |Left headlight
6 | Sockets 6 |Automatic transmission
7 Right rear door control module, right rear 7 |Instrument panel
power window 8 |Climate control system blower
All wheel drive control module 9 | Right headlight
9 |Right headlight electronics 10 | Dynamic steering
10 Windshield washer system/headlight 11 | Engine start, thermal management
washer system control module 7
12 |Oil pump

301

Fuses and bulbs
Fuse assignment - Driver's side of the Fuse assignment - Left side of the luggage
(ole 4) g (eT Tata ahg
Q oO

cy ¢
2
= = a

Fig. 200 Driver side cockpit: fuse panel with plastic bracket

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
Fig. 201 Left side of the luggage compartment: fuse panel
9 |Instrument cluster with plastic clip
10 | Volume control
11 | Light switch, switch module Fuse panel (@) (black)
12 | Steering column electronics No. | Equipment
14 | Infotainment system 1 |Thermal management, coolant pumps
15 | Steering column adjustment 2 | Windshield defroster
16 Steering column electronics, steering 3_|Windshield defroster
wheel heating 5 |Air suspension/suspension control
6 | Automatic transmission
7 |Rear window defogger
8 | Rear seat heating
9 |Left tail lights
10 | Airbag control module
Luggage compartment lid lock, fuel filler
11 | door lock, convenience system control
module

12 |Luggage compartment lid

Fuse panel (8) (red)
No. | Equipment


2 |High-voltage battery

3 | High-voltage battery water pump

4 | Electric motor

302