run flat MERCEDES-BENZ GLE SUV 2019 Owner's Manual

Ionization ....................................... 131
Maximum cooling .......................... 130
Notes on using the automatic cli-
mate control .................................. 127
Overview of systems ...................... 122
Problem with the rear window
defroster ........................................ 131
Problems with cooling with air
dehumidification ............................ 128
Rear control panel .........................1 25
Refrigerant ..................................... 389
Refrigerant filling capacity ............. 390
Setting the air distribution ............. 129
Setting the air vents ..................... .132
Setting the airflow ......................... 129
Setting the climate mode (AIR
FLOW) ............................................ 128
Setting the temperature ................ 128
Switching air-recirculation mode
on/off ............................................ 131
Switching on/off ........................... 127
Switching residual heat on/off ...... 131
Switching the rear window
defroster on/off ............................ 130
Switching the ZONE function
on/off ............................................ 129
Coat hooks ......................................... 302
Cockpit
Overview .......................................... 36
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 379
see Emergency spare wheel
COMAND
Driving dynamics displa y............... 219
COMAND display
Cleaning ......................................... 332
Combination switch .......................... 111
Connecting a USB device
see also Digital Operator's Man-
ual .................................................. 287
Consumption statistics (on-board
computer) .......................................... 232
Controller ........................................... 288
Convenience closing feature .............. 90
Convenience opening feature ............ 89Coolant (engine)
Checking the level ......................... 324
Display message ............................ 257
Filling capacity ............................... 389
Important safety notes .................. 388
Temperature (on-board computer, Mercedes-AMG vehicles) ............... 241
Temperature gaug e........................ 230
Warning lamp ................................. 283
Cooling
see Climate control
Copyright ............................................. 35
Cornering light function
Display message ............................ 256
Crash-responsive emergency light-
ing ....................................................... 115
Crosswind Assist ................................. 72
Crosswind driving assistance ............ 72
Cruise control
Activating ....................................... 170
Activation conditions ..................... 170
Cruise control lever ....................... 170
Deactivating ................................... 171
Display message ............................ 267
Driving system ............................... 169
Function/note s............................. 169
Important safety notes .................. 169
Storing and maintaining current
speed ............................................. 170
Cup holder
Center console .............................. 305
Important safety notes .................. 304
Rear compartment ......................... 305
Temperature controlled ................. 305
Customer Assistance Center
(CAC) ..................................................... 31
Customer Relations Department ....... 31 D
Dashboard see Instrument cluster
Data
see Technical data
Data carrier
Selecting ........................................ 235
Daytime running lamps
Display message ............................ 256 8
Index

Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................ .59
Emergency release
Driver's door .................................... 84
Vehicle ............................................ .84
Emergency spare wheel
General notes ................................ 377
Important safety notes .................. 376
Removing ...................................... .377
Storage location ............................ 377
Stowing .......................................... 377
Emergency Tensioning Devices
Activation ......................................... 56
Emergency unlocking
Tailgate ............................................ 88
Emissions control
Service and warranty information .... 28
Engine
Check Engine warning lamp ........... 283
Display message ............................ 257
ECO start/stop function ................ 139
Engine number ............................... 383
Irregular running ............................ 141
Jump-starting ................................. 343
Starting (important safety notes) ... 136
Starting problems .......................... 141
Starting the engine with the
SmartKey ....................................... 137
Starting via smartphone ................ 137
Starting with KEYLESS-GO ............. 137
Switching off .................................. 157
Tow-starting (vehicle) ..................... 349
Engine electronics
Problem (malfunction) ................... 141
Engine jump starting
see Jump starting (engine)
Engine oil
Adding .......................................... .323
Additives ........................................ 388
Checking the oil level ..................... 322
Checking the oil level using the
dipstick .......................................... 323
Display message ............................ 259
Filling capacity ............................... 387
Notes about oil grades ................... 387 Notes on oil level/consumption .... 322
Temperature (on-board computer,
Mercedes-AMG vehicles) .............. .241
Engine switch-off
see ECO start/stop function
Entering an address
see also Digital Operator's Man-
ual ................................................. .287
ESP ®
(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 242
Characteristics ................................. 70
Deactivating/activating ................... 71
Display message ............................ 245
Function/notes ................................ 70
General notes .................................. 70
Important safety information ........... 70
Warning lamp ................................. 279
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 70
Exhaust check ................................... 160
Exhaust pipe (cleaning instruc-
tions) ................................................. .331
Exterior lighting
see Lights
Exterior mirrors
Adjusting ....................................... 105
Dipping (automatic) ....................... 107
Folding in when locking (on-board computer) ...................................... 241
Folding in/out (automatically) ....... 106
Folding in/out (electrically) ........... 106
Out of position (troubleshooting) ... 107
Setting ........................................... 106
Storing settings (memory func-
tion) ............................................... 108
Storing the parking position .......... 107
Eyeglasses compartment ................. 297 F
Favorites Overview ........................................ 289
Filler cap
see Refueling
Flat tire
MOExtended tire s.......................... 336
Preparing the vehicle ..................... 335 Index
11

Off-road fording
!
Under no circumstances should you accel-
erate before entering the water. The bow
wave could cause water to enter and damage
the engine and other assemblies.
! Do not open any of the vehicle's doors while
fording. Otherwise, water could get into the
vehicle interior and damage the vehicle's
electronics and interior equipment.
R Establish how deep the water is and the char-
acteristics of the body of water before ford-
ing.
R Select the highest possible vehicle level.
R Shift to a lower gear using the left-hand steer-
ing wheel paddle shifter.
R Avoid high engine speeds.
R Enter and exit the water at a flat place and at
a steady walking pace.
R Drive slowly and at an even speed through the
water.
R Ensure that a bow wave does not form as you
drive.
R Do not stop and do not switch off the engine.
Water offers a high degree of resistance, and the ground is slippery and in some cases
unstable. Therefore, it is difficult and danger-
ous to pull away in the water.
R Clean any mud from the tire tread after ford-
ing.
R Apply the brakes to dry them after fording.
Always observe the fording depth values
(Y page 392). Winter driving
G
WARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface. G
DANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases such as carbon monoxide (CO) may enter the
vehicle. This is the case, e.g. if the vehicle
becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open a window on the side of the vehicle that is not
facing into the wind.
! When scraping ice off the rear window, take
care not to damage the rear-window seal or
trim.
Have your vehicle winter-proofed at a qualified
specialist workshop at the onset of winter.
Drive particularly carefully on slippery road sur- faces. Avoid sudden acceleration, steering and
braking maneuvers. Do not use cruise control or
Active Distance Assist DISTRONIC.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
X Shift the transmission to position 005C.
X Try to bring the vehicle under control using
corrective steering.
When driving in snow with or without snow
chains, select driving program Slippery
(Y page 142).
i Vehicles with a diesel engine:
do not
cover the radiator, e.g. with a protective
cover. The measuring function of the on-
board diagnosis system may otherwise pro-
vide inaccurate values. Some of these values
are required by law and must therefore always be accurate.
The outside temperature indicator is not
designed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Changes in the outside temperature are dis-
played after a short delay.
Indicated temperatures just above the freezing
point do not guarantee that the road surface is
free of ice. The road may still be icy, especially in wooded areas or on bridges. You should pay
special attention to road conditions when tem-
peratures are around the freezing point.
For more information on driving with snow
chains, see (Y page 353).164
Driving tipsDriving and parking

Tires
Display messages
Possible causes/consequences and
0050
0050Solutions Check
Check
Tire
TirePressure
Pressure
Soon
Soon The tire pressure loss warning system has detected a significant loss
in pressure.
A warning tone also sounds.
Possible causes:
R you have changed the positions of the wheels and tires or installed
new wheels and tires.
R the tire pressure in one or more tires has dropped significantly
G WARNING
Tire pressures that are too low pose the following hazards: R they may burst, especially as the load and vehicle speed increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may be
greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 156).
X Check the tires and, if necessary, follow the instructions for a flat
tire (Y page 335).
X Check the tire pressures and, if necessary, correct the tire pressure.
X Restart the tire pressure loss warning system when the tire pres-
sure is correct (Y page 358). Check Check
Tire
TirePressure
Pressure
Then Restart Run
Then Restart Run
Flat Indicator Flat Indicator The tire pressure loss warning system generated a display message
and has not been restarted since.
X Set the correct tire pressure in all four tires.
X Restart the tire pressure loss warning system (Y page 358).Run Flat Indicator Run Flat Indicator
Inoperative Inoperative The tire pressure loss warning system is faulty.
X Visit a qualified specialist workshop. Please
Please
Correct
Correct Tire
Tire
Pressure
Pressure The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X Check the tire pressures at the next opportunity (Y page 358).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor (Y page 361).268
Display
messagesOn-board computer and displays

Vehicle tool kit
General notes The vehicle tool kit can be found in the stowage
well under the cargo compartment floor.
Apart from certain country-specific variations,
the vehicles are not equipped with a tire-change
tool kit. Some tools for changing a wheel are
specific to the vehicle. For more information on
which tools are required to perform a wheel
change on your vehicle, consult a qualified spe-
cialist workshop.
Necessary tire-changing tools can include, for
example:
R jack
R wheel chock
R lug wrench
R ratchet wrench
R alignment bolt
Vehicles with a TIREFIT kit 0043
Jack
0044 Folding wheel chock
0087 Towing eye
0085 Alignment bolt
0083 Tire inflation compressor
0084 Lug wrench
006B Ratchet wrench
006C Tire sealant filler bottle
X Open the tailgate.
X Lift the cargo compartment floor up
(Y page 303).
X Use the TIREFIT kit (Y page 337). Vehicles with a "Minispare" emergency
spare wheel 0043
Folding wheel chock
0044 Lug wrench
0087 Alignment bolt
0085 Towing eye
0083 Jack
0084 Ratchet wrench
X Open the tailgate.
X Lift the cargo compartment floor up
(Y page 303).
X Remove the "Minispare" emergency spare
wheel (Y page 377). Flat tire
Preparing the vehicle
Your vehicle may be equipped with: R MOExtended tires (tires with run-flat proper-
ties)
Vehicle preparation is not necessary on vehi-
cles with MOExtended tires.
R a TIREFIT kit (Y page 335)
R an emergency spare wheel (only for certain
countries)
Vehicles with an mbrace system (USA only)
which are not equipped with a TIREFIT kit: in the event of a flat tire, contact the Customer Assis-tance Center for the mbrace emergency call
system (Y page 310).
Information on changing and mounting wheels
(Y page 371).
X Stop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
X Switch on the hazard warning lamps. Flat tire
335Breakdown assis tance

X
Secure the vehicle against rolling away
(Y page 156).
X If possible, bring the front wheels into the
straight-ahead position.
X Vehicles with the AIRMATIC package:
make sure that the normal vehicle level is
selected (Y page 185).
X Vehicles with the Off-Road Engineering
package:
make sure that the normal vehicle
level is selected (Y page 179).
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove the
SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO: open the driv-
er's door.
The vehicle electronics are now in position
0092. This means no SmartKey is in the ignition
lock.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 135).
X Make sure that the engine cannot be started
via your smartphone (Y page 137).
X Make sure that the passengers are not endan-
gered as they do so. Make sure that no one is
near the danger area while a wheel is being
changed. Anyone who is not directly assisting
in the wheel change should, for example,
stand behind the barrier.
X Get out of the vehicle. Pay attention to traffic
conditions when doing so.
X Close the driver's door.
X Unload heavy luggage.
i Only operate the tire inflation compressor
using a 12 V socket, even if the ignition is
turned off (Y page 308).
An emergency cut-out ensures that the on-
board voltage does not drop too low. If the on-
board voltage is too low, the power to the
sockets is automatically cut. This ensures
that there is sufficient power to start the
engine. MOExtended tires (tires with run-flat
properties)
General notes With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive your vehi- cle even if there is a total loss of pressure in one
or more tires. The affected tire must not show
any clearly visible damage.
You can recognize a MOExtended tire by the
MOExtended marking which appears on the
sidewall of the tire. You will find this marking
next to the tire size designation, the load-bear-
ing capacity and the speed index (Y page 366).
MOExtended tires may only be used in conjunc-
tion with an active tire pressure loss warning
system or with an active tire pressure monitor.
If a pressure loss warning message appears in the multifunction display:
R observe the instructions in the display mes-
sages (Y page 268).
R check the tire for damage
R if driving on, observe the following notes
The driving distance possible in run-flat mode is approximately 50 miles (80 km) when the vehi-
cle is partially laden and approximately 18 miles
(30 km) when the vehicle is fully laden.
In addition to the vehicle load, the driving dis-
tance possible depends upon:
R Vehicle speed
R Road condition
R Outside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions
or maneuvers, or it can be increased through a
moderate style of driving.
The driving distance possible in run-flat mode is counted from the moment the tire pressure loss warning appears in the multifunction display.
You must not exceed a maximum permissible
speed of 50 mph (80 km/h).
i When replacing one or all tires, please
observe the following specifications for your
vehicle's tires:
R size
R type and
R the "MOExtended" mark
If a tire has gone flat and cannot be replaced with a MOExtended tire, a standard tire may 336
Flat tireBreakdown assistance

be used as a temporary measure. Make sure
that you use the proper size and type (sum-
mer or winter tire).
i Vehicles equipped with MOExtended tires
are not equipped with a TIREFIT kit at the fac- tory. It is therefore recommended that you
additionally equip your vehicle with a TIREFIT
kit if you mount tires that do not feature run- flat properties, e.g. winter tires. A TIREFIT kit
may be obtained from a qualified specialist
workshop.
Important safety notes G
WARNING
When driving in emergency mode, the driving characteristics deteriorate, e.g. when corner-
ing, accelerating quickly and when braking.
There is a risk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacles (curbs, potholes,
off-road). This applies in particular to a laden
vehicle.
Stop driving in emergency mode if:
R you hear banging noises.
R the vehicle starts to shake.
R you see smoke and smell rubber.
R ESP ®
is intervening constantly.
R there are tears in the sidewalls of the tire.
After driving in emergency mode, have the
wheel rims checked at a qualified specialist
workshop with regard to their further use. The defective tire must be replaced in every case. TIREFIT kit
Important safety notes TIREFIT is a tire sealant.
You can use TIREFIT to seal punctures of up to
0.16 in (4 mm), particularly those in the tire
tread. You can use TIREFIT at outside tempera-
tures down to 00F84 ‡ (00F820 †). G
WARNING
In the following situations, the tire sealant is
unable to provide sufficient breakdown assis- tance, as it is unable to seal the tire properly:
R there are cuts or punctures in the tire larger
than those mentioned above.
R the wheel rim is damaged.
R you have driven at very low tire pressures or
on a flat tire.
There is a risk of an accident.
Do not drive the vehicle. Contact a qualified
specialist workshop. G
WARNING
The tire sealant is harmful and causes irrita-
tion. It must not come into contact with your
skin, eyes or clothing or be swallowed. Do not inhale TIREFIT fumes. Keep tire sealant away
from children. There is a risk of injury.
If you come into contact with the tire sealant,
observe the following:
R Rinse off the tire sealant from your skin
immediately with water.
R If the tire sealant comes into contact with
your eyes, immediately rinse them thor-
oughly with clean water.
R If tire sealant is swallowed, immediately
rinse your mouth out thoroughly and drink
plenty of water. Do not induce vomiting,
and seek medical attention immediately.
R Immediately change out of clothing which
has come into contact with tire sealant.
R If an allergic reaction occurs, seek medical
attention immediately.
! Do not operate the tire inflation compressor
for longer than eight minutes at a time without a break. It may otherwise overheat.
The tire inflation compressor can be operatedagain once it has cooled down.
Comply with the manufacturer’s safety instruc-
tions on the sticker on the tire inflation com-
pressor. Flat tire
337Breakdown assistance Z

Using the TIREFIT kit
X
Do not remove any foreign objects which have
penetrated the tire, e.g. screws or nails.
X Remove the tire sealant bottle, the accompa-
nying TIREFIT sticker and the tire inflation
compressor from the stowage well under-
neath the cargo compartment floor
(Y page 335).
X Affix part 0043of the TIREFIT sticker to the
instrument cluster within the driver's field of
vision.
X Affix part 0044of the TIREFIT sticker near the
valve on the wheel with the defective tire. X
Pull connector 0085with the cable and hose 0083
out of the tire inflation compressor housing.
X Screw hose 0083onto flange 0084of tire sealant
bottle 0043.
X Place tire sealant bottle 0043head down into
recess 0044of the tire inflation compressor. X
Remove the cap from valve 006Bon the faulty
tire.
X Screw filler hose 006Conto valve 006B.
X Insert connector 0085into a socket in your vehi-
cle.
Cigarette lighter socket: (Y page 307)
12 V sockets: (Y page 308)
Observe the notes on the cigarette lighter
(Y page 307). Observe the notes on sockets
(Y page 308).
X Turn the SmartKey to position 0047in the igni-
tion lock (Y page 135).
X Press on and off switch 0087on the tire inflation
compressor to I.
The tire inflation compressor is switched on.
The tire is inflated.
First, tire sealant is pumped into the tire. The
pressure may briefly rise to approximately
500 kPa (5 bar/73 psi).
Do not switch off the tire inflation com-
pressor during this phase.
X Let the tire inflation compressor run for a
maximum of five minutes. The tire should then
have attained a pressure of at least 180 kPa
(1.8 bar/26 psi).
If a pressure of 180 kPa (1.8 bar/26 psi) has
been attained after five minutes, see "Tire pres- sure reached" (Y page 339).
If a tire pressure of 180 kPa (1.8 bar/26 psi) has not been attained after five minutes, see "Tire
pressure not reached" (Y page 339).
If tire sealant has escaped, clean it off affected
areas as quickly as possible. It is preferable to
use clean water.
If your clothes are soiled with tire sealant, have
them cleaned with perchloroethylene at a dry
cleaner as soon as possible. 338
Flat tireBreakdown assistance

Important safety notes
G
WARNING
If wheels and tires of the wrong size are used, the wheel brakes or suspension components
may be damaged. There is a risk of an acci-
dent.
Always replace wheels and tires with those
that fulfill the specifications of the original
part.
When replacing wheels, make sure to use the
correct:
R designation
R model
When replacing tires, make sure to use the
correct:
R designation
R manufacturer
R model G
WARNING
A flat tire severely impairs the driving, steer-
ing and braking characteristics of the vehicle.
There is a risk of accident.
Tires without run-flat characteristics:
R do not drive with a flat tire.
R immediately replace the flat tire with your
emergency spare wheel or spare wheel, or
consult a qualified specialist workshop.
Tires with run-flat characteristics:
R pay attention to the information and warn-
ing notices on MOExtended tires (tires with
run-flat characteristics).
Accessories that are not approved for your vehi-
cle by Mercedes-Benz or are not being used cor- rectly can impair the operating safety.
Before purchasing and using non-approved
accessories, visit a qualified specialist work-
shop and inquire about:
R suitability
R legal stipulations
R factory recommendations Further information regarding wheels and tires
can be found under "Wheel/tire combinations"
(Y page 376).
You can ask for information regarding permitted
wheel-tire combinations at an authorized
Mercedes-Benz Center.
Tire pressure information can be found:
R on the Tire and Loading Information placard
on the B-pillar on the driver's side
R in the tire pressure table in the fuel filler flap
R in the "Tire pressure" section Operation
Information on driving
Check the tire pressure when the vehicle is
heavily laden and adjust prior to a trip.
While driving, pay attention to vibrations, noises and unusual handling characteristics, e.g. pull-
ing to one side. This may indicate that the
wheels or tires are damaged. If you suspect thata tire is defective, reduce your speed immedi-
ately. Stop the vehicle as soon as possible to
check the wheels and tires for damage. Hidden
tire damage could also be causing the unusual
handling characteristics. If you find no signs of
damage, have the tires and wheels checked at a
qualified specialist workshop.
When parking your vehicle, make sure that the
tires do not get deformed by the curb or other
obstacles. If it is necessary to drive over curbs,
speed humps or similar elevations, try to do so
slowly and at an obtuse angle. Otherwise, the
tires, particularly the sidewalls, may be dam-
aged. Regular checking of wheels and tires
G
WARNING
Damaged tires can cause tire inflation pres-
sure loss. As a result, you could lose control of your vehicle. There is a risk of accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately.
Check wheels and tires for damage at least once a month. Check wheels and tires after driving
off-road or on rough roads. Damaged wheels
can cause a loss of tire pressure. Operation
351Wheels and ti res Z

Pay particular attention to damage such as:
R Cuts in the tires
R Punctures in the tires
R Tears in the tires
R Bulges on tires
R Deformation or severe corrosion on wheels
Regularly check the tire tread depth and the
condition of the tread across the whole width of
all tires (Y page 352). If necessary, turn the
front wheels to full lock in order to inspect the
inner side of the tire surface.
All wheels must have a valve cap to protect the
valve against dirt and moisture. Do not mount
anything onto the valve other than the standard
valve cap or other valve caps approved by
Mercedes-Benz for your vehicle. Do not use any other valve caps or systems, e.g. tire pressure
monitoring systems.
Regularly check the pressure of all the tires par- ticularly prior to long trips. Adjust the tire pres-
sure as necessary (Y page 354).
Observe the notes on the emergency spare
wheel (Y page 376).
The service life of tires depends, among other
things, on the following factors:
R Driving style
R Tire pressure
R Distance covered Notes on tire tread
G
WARNING
Insufficient tire tread will reduce tire traction.
The tire is no longer able to dissipate water.
This means that on wet road surfaces, the risk of hydroplaning increases, in particular where speed is not adapted to suit the driving con-
ditions. There is a risk of accident.
If the tire pressure is too high or too low, tires
may exhibit different levels of wear at differ-
ent locations on the tire tread. Thus, you
should regularly check the tread depth and
the condition of the tread across the entire
width of all tires.
Minimum tire tread depth for:
R Summer tires: 00CEin (3 mm)
R M+S tires: 00CFin (4 mm) For safety reasons, replace the tires before
the legally prescribed limit for the minimum
tire tread depth is reached. Marking
0043shows where the bar indicator
(arrow) for tread wear is integrated into the tire
tread.
Treadwear indicators (TWI) are required by law. Six indicators are positioned on the tire tread.
They are visible once a tread depth of approx-
imately 00CDin (1.6 mm) has been reached. If this
is the case, the tire is so worn that it must be
replaced. Selecting, mounting and replacing
tires
R Only mount tires and wheels of the same type
and make.
Exception: it is permissible to mount a differ-
ent type or make in the event of a flat tire.
Observe here the "MOExtended tires (tires
with run-flat characteristics)" section
(Y page 336).
R Only mount tires of the correct size onto the
wheels.
R Break in new tires at moderate speeds for the
first 60 miles (100 km). The new tires only
reach their full performance after this dis-
tance.
R Do not drive with tires which have too little
tread depth. This significantly reduces the
traction on wet roads (hydroplaning).
R Replace the tires after six years at the latest,
regardless of wear.
Observe the notes on the emergency spare
wheel (Y page 376). 352
OperationWheels and tires