MERCEDES-BENZ E CLASS COUPE 2023 Owners Manual

Use only fuses approved for Mercedes-
Benz with the respective speciNed fuse
rating.
Blown fuses must be replaced with fuses of the
same rating, which you can recognize by the color and the label. The fuse ratings and further infor-
mation to be observed can be found in the fuse
assignment diagram.
Fuse assignment diagram: on the fuse box in the
trunk (  page 311).
*NOTE Damage or malfunctions caused by
moisture
Moisture may cause damage to the electrical
system or cause it to malfunction.
When the fuse box is open, make sure
that no moisture can enter the fuse box.When closing the fuse box, make sure
that the seal of the lid is positioned cor-
rectly on the fuse box.If a newly inserted fuse also blows, have the
cause traced and rectiNed at a qualiNed specialist
workshop.
Ensure the following before replacing a fuse: = The vehicle is secured against rolling away.
= All electrical consumers are switched oM.
= The vehicle is switched oM.
The electrical fuses are located in various fuse
boxes:
= Fuse box in the engine compartment on the
driver\bs side (  page 309)
= Fuse box on the driver\bs side of the cockpit
(  page 310)
= Fuse box in the front passenger footwell
(  page 311)
= Fuse box in the trunk on the right-hand side of
the vehicle, when viewed in the direction of
travel (  page 311)Opening and closing the fuse box in the engine
compartment
Requirements
= A dry cloth and a screwdriver are to hand.
Observe the notes on electrical fuses
(  page 308).
Opening
&WARNING Risk of injury from using the
windshield wipers when the hood is open
If the windshield wipers start moving when the hood is open, you could be trapped by the
wiper linkage.
Always switch oM the windshield wipers
and the vehicle Nrst if you need to open
the hood.Breakdown assistance309

Turn clips 2 on cover 1 a quarter-turn
counter-clockwise.Pull cover 1 upwards in the direction of the
arrow.Remove any moisture present from the fuse
box using a dry cloth.Unscrew screws 4 and remove fuse box lid
3 from the top.
Closing
Check whether the seal is positioned correctly
in lid 3.Insert lid 3 into the bracket at the rear of the
fuse box.Fold down lid 3 of the fuse box and tighten
screws 4.Insert cover 1 on both sides.Turn clips 2 on cover 1 a quarter-turn
clockwise.Close the hood.
Opening and closing the fuse box in the cockpit
= Observe the notes on electrical fuses
(  page 308).
The fuse box is on the driver\bs side on the side of
the cockpit under a cover.
Mercedes-Benz recommends you have the fuse box opened at an authorized Mercedes-
Benz Center.310Breakdown assistance

Opening and closing the fuse box in the front
passenger footwell
Observe the notes on electrical fuses
(  page 308).
To open: open cover 1 in the direction of the
arrow and remove it.To close: reinsert cover 1.Opening and closing the fuse box in the trunk
Observe the notes on electrical fuses
(  page 308).
Fold up cover 1 in the direction of the arrow.
The fuse assignment diagram is in a recess on the
side of the fuse box.
Breakdown assistance311

Notes on noise or unusual handling characteris-tics
Make sure there are no vibrations, noises or unusual handling characteristics when the vehicle
is in motion. This may indicate that the wheels or
tires are damaged. Hidden tire damage could also
be causing the unusual handling characteristics.
If you suspect that a tire is defective, reduce yourspeed immediately and have the tires and wheels
checked at a qualiNed specialist workshop.
Notes on regularly inspecting wheels and tires
&WARNING Risk of injury through damaged
tires
Damaged tires can cause tire pressure loss.
Check the tires regularly for signs of
damage and replace any damaged tires immediately.&WARNING Risk of hydroplaning due to
insuPcient tire tread
*nsuPcient tire tread will result in reduced tire
grip.
In heavy rain or slush the risk of hydroplaning is increased, in particular where speed is not
adapted to suit the conditions.
Thus, you should regularly check the
tread depth and the condition of the
tread across the entire width of all tires.
Minimum tread depth for:
= Summer tires:

Notes on snow chains&WARNING Risk of accident due to incor-
rectly installed snow chains
If you have installed snow chains on the front wheels, they may drag against the vehicle
body or chassis components.
Never install snow chains on the front
wheels.Only install snow chains on the rear
wheels in pairs.*NOTE Damage to components of the vehi-
cle body or chassis due to mounted snow
chains
If you mount snow chains to the front wheels
of 4MATIC vehicles, you may damage compo-
nents of the vehicle body or chassis.
Only mount snow chains to the rear
wheels of 4MATIC vehicles.Observe the following notes when using snow
chains:
= Snow chains are only permissible for certain
wheel/tire combinations. You can obtain infor-
mation about this from a authorized
Mercedes-Benz Service Center.
= For safety reasons, only use snow chains that
have been speciNcally approved for your vehi-
cle by Mercedes-Benz, or snow chains with the same quality standard.
= Comply with the installation instructions of the
snow chain manufacturer.
= If snow chains are installed, the maximum per-
missible speed is 30 mph (50 km/h).
= Vehicles with Active Parking Assist: do not use
Active Parking Assist when snow chains are
installed.
= Vehicles with level control: if snow chains are
installed, only drive at raised vehicle level
(  page 205).\bYou can deactivate ESP n
to pull away
(  page 174). This allows the wheels to spin,
achieving an increased driving force.Tire pressure
Notes on tire pressure
&WARNING Risk of accident due to insuP-
cient or excessive tire pressure
UnderinOated or overinOated tires pose in par-
ticular the following risks:
= The tires can burst.
= The tires can wear excessively and/or
unevenly.
= The driving characteristics as well as the
steering and braking characteristics may
be greatly impaired.
Comply with the recommended tire pres-
sures and check the tire pressure of all
tires, including the spare wheel, regu-
larly:
= Monthly
= When the load changes
= Before embarking on a longer journey
Wheels and tires313

=If operating conditions change, e.g. oM-
road drivingAdjust the tire pressure, if necessary.
Tire pressure which is too high or too low can:
= Shorten the service life of the tires.
= Cause increased tire damage.
= Adversely aMect driving characteristics and
thus driving safety, e.g. due to hydroplaning.
&WARNING Risk of accident due to too low
a tire pressure
Tires with pressure that is too low can over-
heat and burst as a consequence.
In addition, they also suMer from irregular
wear, which can signiNcantly impair the brak-
ing properties and the handling characteris-
tics.
Avoid excessively low tire pressure.
Tire pressure which is too low can cause:
= Tire defects as a result of overheating
=Impaired handling characteristics
= Irregular wear
= Increased fuel consumption&WARNING Risk of accident due to too high
a tire pressure
Tires with excessively high pressure can burst.
In addition, they also suMer from irregular
wear, which can signiNcantly impair the brak-
ing properties and the handling characteris-
tics.
Avoid excessively high tire pressures.
Tire pressure which is too high can cause:
= Increased braking distance
= Impaired handling characteristics
= Irregular wear
= Impaired driving comfort
= Susceptibility to damage
&WARNING Risk of accident due to repea-
ted pressure drop in the tires
The wheels, valves or tires could be damaged.
Too low a tire pressure can lead to the tires
bursting.
Examine the tires for foreign objects.Check whether the tire has a puncture or
the valve has a leak.If you are unable to rectify the damage,
contact a qualiNed specialist workshop.
You can Nnd information on tire pressure for the
vehicle\bs factory-installed tires on the following
labels:
= Tire and loading information placard on the
B!

permit any reliable conclusion about the tire pres-
sure.
Only correct the tire pressure when the tires are
cold. Conditions for cold tires:
= The vehicle has been parked with the tires out
of direct sunlight for at least three hours.
= The vehicle has traveled less than 1 mile
(1.6 km).
The vehicle\bs tires heat up when driving. As the temperature of the tires increases, so too does
the tire pressure.
Vehicles with a tire pressure monitoring system: you can also check the tire pressure using the on- board computer (  page 317).
The tire pressure recommended for increased
load/speed in the tire pressure table can aMect
the ride comfort.&WARNING Risk of accident due to unsuita-
ble accessories on tire valves
If you mount unsuitable accessories onto tire
valves, the tire valves may be overloaded and
malfunction, which can cause tire pressure
loss.Only screw standard valve caps or valve
caps speciNcally approved by Mercedes-
Benz for your vehicle onto the tire valve.
Tire pressure table
The tire pressure table is on the inside of the fuel Nller Oap.
\bThe data shown in the images is example
data.The tire pressure table shows the recommended
tire pressure for all tires approved for this vehicle.
The recommended tire pressures are valid for
cold tires under various operating conditions
according to the load and/or speed of the vehi- cle.
If one or more tire sizes precede a tire pressure,
the following tire pressure information is only valid for those tire sizes and their respective load con-
dition.
The load conditions "partially laden" and "fully
laden" are deNned in the table for diMerent num-
bers of passengers and amounts of luggage. The actual number of seats may diMer from this.Wheels and tires315

Some tire pressure tables only show the rim diam-eter instead of the complete tire size, e.g. R18.
The rim diameter is part of the tire size and can
be found on the tire side wall (  page 327).
= Tire and loading information placard
(  page 320)
= Maximum tire pressure (  page 326)
Checking the tire pressure manuallyRead the tire pressure recommended for the
current operating conditions from the tire and
loading information placard or the tire pres-
sure table. Observe the notes on tire pressure.Remove the valve cap of the tire to be
checked.Press the tire pressure gauge securely onto the valve.Read the tire pressure.If the tire pressure is lower than the recom-
mended value, increase the tire pressure to
the recommended value.If the tire pressure is higher than the recom- mended value, release air. To do so, press
down the metal pin in the valve, e.g. using the
tip of a pen. Then check the tire pressure
again using the tire pressure gauge.Screw the valve cap onto the valve.
Further related subjects:
= Notes on tire pressure (  page 313)
= Tire pressure table (  page 315)
=
Tire and loading information placard
(  page 320)
Tire pressure monitoring system

qFunction of the tire pressure monitoring system
&DANGER Risk of accident due to incorrect
tire pressure
Each tire, including the spare (if provided),
should be checked monthly when cold and
inOated to the inOation pressure recommen-
ded by the vehicle manufacturer on the vehi-
cle placard or tire inOation pressure label. (If
your vehicle has tires of a diMerent size than
the size indicated on the vehicle placard or
tire inOation pressure label, you should deter-
mine the proper tire inOation pressure for
those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pres-sure telltale when one or more of your tires is
signiNcantly under-inOated. Accordingly, when
316Wheels and tires

the low tire pressure telltale illuminates, you
should stop and check your tires as soon as
possible, and inOate them to the proper pres-
sure. Driving on a signiNcantly under-inOated
tire causes the tire to overheat and can lead
to tire failure. Under-inOation also reduces fuel
ePciency and tire tread life, and may aMect
the vehicle!

=Tire pressure will be displayed after driving a
few minutes
= Tire Pressure Monitor Active : the teach-in
process of the system is not yet complete. The
tire pressures are already being monitored.
Compare the tire pressure with the recom-
mended tire pressure for the current operating
condition (  page 315). Additionally, observe
the notes on cold tires (  page 313).\bThe values displayed in the on-board com-
puter may deviate from those of the tire pres-
sure gauge as they refer to sea level. At high
elevations, the tire pressure values indicated by a pressure gauge will be higher than thoseshown by the on-board computer. In this case,do not reduce the tire pressure.

q Restarting the tire pressure monitoring system
Requirements
= The recommended tire pressure is correctly
set for the respective operating status on all of
the wheels (  page 313).
Restart the tire pressure monitoring system in the
following situations:
= The tire pressure has changed.
= The wheels or tires have been changed or
newly Ntted.
On-board computer: 4 Service 5
Tires
Swipe downwards on Touch Control on the
les-hand side of the steering wheel.
The Use Current Pressures as New Refer-
ence Values message will be shown on the
instrument display.To restart, press Touch Control on the les-
hand side of the steering wheel.
The Tire Press. Monitor Restarted message
will be shown on the instrument display.
Current warning messages will be deleted and
the yellow w warning lamp will go out.
Aser you have been driving for a few minutes,
the system will check whether the current tire
pressures are within the speciNed range. The
current tire pressures will then be accepted as
reference values and monitored.
Be sure also to pay attention to the following rela-
ted topic:
= Notes on tire pressure (  page 313)
Tire pressure loss warning system

qFunction of the tire pressure loss warning sys-
tem
The tire pressure loss warning system warns the driver by means of display messages when there
is a severe tire pressure loss.
318Wheels and tires