2018 AUDI A4 fuel fill door release

an authorized Audi dealer or authorized Audi
Service Facility for assistance.
Fuel filler door emergency release
If the central locking system is faulty, the fuel
filler door can be unlocked manually.
Fig. 262 Luggage co mpartment: opening the side trim
panel
Fig . 263 Luggage compartment: fuel filler door e merge ncy
r elease
The emergency opening mechanism is located
behind the right side trim panel in the luggage
compartment.
... Open the cover in the side panel ¢fig. 262.
... Loosen the loop c;, fig. 263 from the retainer
and then pull on the loop carefully
¢(D . The
filler door is released .
... Press on the left side of the fuel filler door to
open it
¢ page 317, fig. 260.
(D Note
Only pull on the loop until you feel resistance.
You will not hear it release . Otherwise you
could damage the emergency release mecha­
nism.
Checking and Filling
Selective catalytic
reduction (AdBlue/DEF)
General information
Applies to: vehicles with selec tive catalytic reduction
In vehicles with selective catalytic reduction, a
urea solution (AdBlue/DEF) is injected into the
exhaust system in front of a nitrogen oxide cata­
lytic converter to reduce nitrogen emissions. The
urea solution is known as Ad Blue or DEF (Diesel
Exhaust Fluid). The information that follows w ill
use the name AdBlue.
The Ad Blue is carried in a separate tank in the ve­
hicle. The AdBlue usage accounts for approxi­
mately 1.0% to 4 .0% of the diesel fuel that is
used .
When a message about refilling the AdBlue ap­
pears in the instrument cluster display, you must
refill the AdBlue yourself or have it refilled by an
authorized Audi dealer or authorized Audi Service
Facility
c;, page 320 .
{D Tips
-The display indicates the distance remaining
that can be dr iven
c;, page 319. If the Ad Bl­
ue tank is completely empty, the engine will
not start again after the ignition is switched
off.
-Ad Blue is required by law to operate this ve­
hicle.
Messages in the instrument cluster display
Appl ies to: vehicles wi th selective catalytic reduction
The display indicates if the Ad Blue level is low or
if there is a system malfunction.
AdBlue level low
You will be informed in the instrument cluster
display if the AdBlue in the tank drops below a
certain level. Add at a minimum the amount of
AdBlue shown in the message:
II Refill with at least x qt (l) Ad Blue. Range
x mi (km )
319

Index
Rearview camera
re fer to Parking systems . . . . . . . . . . 137, 138
Rear window defogger . . . . . . . . . . . . . . . . . . 78
Rear window sh ade . . . . . . . . . . . . . . . . . . . . .
60
Rear window washer system . . . . . . . . . . . . . 60
REAR (button) . . . . . . . . . . . . . . . . . . . . . . . . . 78
Recircu lation mode (automatic climate con-
t rol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Recuperation . . . . . . . . . . . . . . . . . . . . . . . . . 17
Refueling ....... ........... ........ .. 317
Fuel filler door emergency release 319
Remote control
refer to Remote control key . . . . . . . . . . . . 38
Remote control key . . . . . . . . . . . . . . . . . . . . 38
Remote control operation Garage door opener (Homelink) . . . . . . . . . 52
Remote locking and unlocking
Audi connec t vehicle control . . . . . . . . . . . 199
Removing the caps (wheel bolts) . . . . . . . . . 363
Repair manuals . . . . . . . . . . . . . . . . . . . . . . . 383
Repairs Airbag system . . . . . . . . . . . . . . . . . . . . . . 286
Replacement key . . . . . . . . . . . . . . . . . . . . . . 38
Replacing Light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 373
Replacing wiper b lades . . . . . . . . . . . . . . 62, 63
Reporting Safety Defects . . . . . . . . . . . 261, 262
Reset
refer to Restart (MMI) . . . . . . . . . . . . . . . . 253
Reset button (trip odometer) . . . . . . . . . . . . 12
Resetting the trip odometer . . . . . . . . . . . . . 12
Residual heat (automatic climate control) . . 79
Resta rt (MMI) . . . . . . . . . . . . . . . . . . . . . . . . 253
Retractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Reverse gea r . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Reversible cargo floor . . . . . . . . . . . . . . . . . . 7 4
Rewinding (audio/video file) . . . . . . . . . . . . 236
Right control button . . . . . . . . . . . . . . . . . . . . 14
Rims ..... .. .. .... ... ... ..... .. .. .. . 349
Clean ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
Ringtone settings . . . . . . . . . . . . . . . . . . . . . 1 85
Roaming
refer to Data connection . . . . . . . . . . . . . . 1 95
Roof emergency operation . . . . . . . . . . . . . . . 50
396
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4
Roof load . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 4
also ref er to Roof rack . . . . . . . . . . . . . . . . . 7 4
Route criteria . . . . . . . . . . . . . . . . . . . . . . . . 213
Route guidan ce
refer to Navigation . . . . . . . . . . . . . . . . . . . 204
Running direc tion (tires)
s
Safe driving habits
Safety 366
254
Airbag system . . . . . . . . . . . . . . . . . . . . . . 271
Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Correct seating position . . . . . . . . . . . . . . 255
P edal area . . . . . . . . . . . . . . . . . . . . . . . . . . 259
T ele phone. . . . . . . . . . . . . . . . . . . . . . . . . . 175
Safety belt height adjustment . . . . . . . . . . . 268
Safety belt position . . . . . . . . . . . . . . . . . . . 267
Safety belt height adjustment . . . . . . . . . 268
Safety belts worn by pregnant women . . . 268
Safety belt pretensioner Serv ice and d isposal. . . . . . . . . . . . . . . . . . 270
Safety be lts . . . . . . . . . . . . . . . . . . . . . . 263, 266
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Danger to passengers who do not w ear a
saf ety b elt . . . . . . . . . . . . . . . . . . . . . . . . . 264
Fas tening . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Improperly worn . . . . . . . . . . . . . . . . . . . . 269
Not worn . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Safety belt position . . . . . . . . . . . . . . . . . . 267
Safety instructions . . . . . . . . . . . . . . . . . . . 265
Securing child safety seats . . . . . . . . . . . .
306
Special considerat ions for pregnant wom -
en .......... ..... .. ............... 268
Unfastening . . . . . . . . . . . . . . . . . . . . . . . . 268
Warning/indicator light . . . . . . . . . . . . . . 263
Worn p roperly . . . . . . . . . . . . . . . . . . . . . . 265
Safety belt warning light . . . . . . . . . . . . . . . 263
Safety instructions for side curtain airbags . . . . . . . . . . . . . . . 294
for using child safety seats . . . . . . . . . . . . 299
for using safety belts . . . . . . . . . . . . . . . . . 265
Monitoring the Advanced Airbag System 285
Saving fuel Energy consumers . . . . . . . . . . . . . . . . . . . . 18
Recuperation . . . . . . . . . . . . . . . . . . . . . . . . 17