2023 MERCEDES-BENZ E CLASS COUPE Owners Manual

Example: engine compartment
Slide cover 1 of POSITIVE contact 2 on the
jump-starting connection point in the direction
of the arrow.Connect POSITIVE contact 2 on your vehicle
to the positive terminal of the donor battery using the jumper cable/charging cable.Always begin with POSITIVE contact 2 on
your own vehicle.During starting assistance: start the engine of
the donor vehicle and leave it running at idle
speed.Connect the negative terminal of the donor
battery and ground point 3 of your own vehi-
cle by using the jumper cable/charging cable.
Begin with the donor battery.During starting assistance: start the engine of
your own vehicle.During the charging process: start the charg-
ing process.During starting assistance: leave the engines
running for several minutes.During starting assistance: before disconnect-
ing the jumper cable, switch on an electrical consumer on your own vehicle, e.g. the rear
window defroster or lighting.
When the starting assistance/charging process is
complete, perform the following steps:
First, remove the jumper cable/charging cable
from ground point 3 and the negative termi-
nal of the donor battery, then POSITIVE con-
tact 2 and the positive terminal of the donor
battery. Begin each time with the contacts on
your own vehicle.Aser removing the jumper cable/charging
cable, close cover 1 of POSITIVE contact
2 .
Further information can be obtained at a qualiNed
specialist workshop.
Replacing the 12 V battery
Observe the notes on the 12 V battery (  page 299).
Mercedes-Benz recommends that you have the
12 V battery replaced at a qualiNed specialist
workshop, e.g. at an authorized Mercedes-Benz Center.
Breakdown assistance303

Observe the following notes if you want to replacethe battery yourself:
= Always replace a faulty battery with a battery
which meets the speciNc vehicle require-
ments.
The vehicle is equipped with a battery featur-
ing AGM technology (Absorbent Glass Mat) or
a lithium-ion battery. Full vehicle functionality
is only guaranteed with an AGM battery or lith- ium-ion battery. For safety reasons, Mercedes-Benz recommends that you only use batteries
that have been tested and approved for your vehicle by Mercedes-Benz.
= Transfer detachable parts, such as vent hoses,
elbow Nttings or terminal covers from the bat-
tery being replaced.
= Make sure that the vent hose is always con-
nected to the original opening on the battery
side.
Fit any existing or supplied cell caps.
Otherwise, gases or battery acid could
escape.
= Make sure that detachable parts are recon-
nected in the same way.Tow starting or towing away
Permitted towing methods
*NOTE Damage from automatic braking
If one of the following functions is activated,
the vehicle will brake automatically in certain
situations:
= Active Brake Assist
= Active Distance Assist DISTRONIC
= HOLD function
= Active Parking Assist
To avoid damage to the vehicle, deactivate
these systems in the following or similar situa-
tions:
During towing.In a car wash.
Mercedes-Benz recommends transporting your vehicle in the case of a breakdown, rather than towing it away.
For towing with both axles on the ground, use a tow rope or tow rod. Do not use tow bar systems.
*NOTE Damage to the vehicle due to tow-
ing away incorrectlyObserve the instructions and notes on
towing away.
Vehicles with rear wheel drive
Permitted towing methodsBoth axles on
the groundYes, for a maximum of
31 miles (50 km) at 31 mph
(50 km/h)Front axle
raisedNoRear axle
raisedYes, if the steering wheel is
Nxed in the center position
with a steering wheel lock304Breakdown assistance

4MATIC vehiclesPermitted towing methodsBoth axles on
the groundYes, for a maximum of
31 miles (50 km) at 31 mph
(50 km/h)Front axle
raisedNoRear axle
raisedNo
Towing with a raised axle: towing should be per-
formed by a towing company.
Towing the vehicle with both axles on the ground
Observe the notes on the permitted towing
methods.Make sure that the battery is connected and
charged.
Observe the following points when the battery is
discharged:
= the vehicle cannot be started.
=the electric parking brake cannot be released
or applied
= Vehicles with automatic transmission: the
transmission cannot be shised to position \\
or ] .\bVehicles with automatic transmission: if the
transmission cannot be shised to position \\
or if the display does not show anything,
transport the vehicle (  page 306). A towing
vehicle with lising equipment is required for
vehicle transportation.*NOTE Damage due to towing away at
excessively high speeds or over long dis-
tances
The drivetrain could be damaged when towing
at excessively high speeds or over long distan-
ces.
A towing speed of 30 mph (50 km/h)
must not be exceeded.A towing distance of 30 miles (50 km)
must not be exceeded.&WARNING Risk of accident when towing a
vehicle which is too heavy
If the vehicle to be tow-started or towed away
is heavier than the permissible gross mass of
your vehicle, the following situations can
occur:
= The towing eye may become detached.
= The vehicle/trailer combination may
swerve or rollover.
Before tow-starting or towing away,
check if the vehicle to be tow-started or
towed away exceeds the permissible
gross mass.If a vehicle has to be tow-started or towed away, its permissible gross mass must not exceed thepermissible gross mass of the towing vehicle.Information on the permissible gross mass of
the vehicle can be found on the vehicle identi-
Ncation plate ( page 346).Vehicles with automatic transmission: do not
open the driver\bs door or front passengerBreakdown assistance305

door; the transmission otherwise automati-
cally shiss to position ].Install the towing eye (  page 308).Fasten the towing device.*NOTE Damage due to incorrect connec-
tion of the tow barOnly connect the tow rope or tow bar to
the towing eyes.Deactivate the automatic locking mechanism .Do not activate the HOLD function.Deactivate tow-away alarm (  page 87).Deactivate Active Brake Assist (  page 195).Vehicles with automatic transmission: shis to
position \\.Release the electric parking brake.&WARNING Risk of accident due to limited
safety-related functions during the towing
process
Safety-related functions are limited or no lon-
ger available in the following situations:
= The vehicle is switched oM.
= The brake system or power steering sys-
tem is malfunctioning.
= The energy supply or the on-board electri-
cal system is malfunctioning.
When your vehicle is towed away, signiNcantly
more eMort may be required to steer and
brake than is normally required.
Use a tow bar.Make sure that the steering wheel can
move freely before towing the vehicle
away.*NOTE Damage due to excessive tractive
power
If you pull away sharply, the tractive power
may be too high and the vehicles could be
damaged.
Pull away slowly and smoothly.
Loading the vehicle for transport
Observe the notes on towing away (  page 305).Connect the towing device to the towing eye
in order to load the vehicle.Vehicles with automatic transmission: shis the
automatic transmission to position \\.\bVehicles with automatic transmission: the
automatic transmission may be locked in posi- tion ] in the event of damage to the electri-
cal system. To shis to \\, provide the on-
board electrical system with power
(  page 302).Load the vehicle onto the transporter.306Breakdown assistance

Vehicles with automatic transmission: shis the
automatic transmission to position ].Use the electric parking brake to secure the
vehicle against rolling away.Only secure the vehicle by the wheels.
Vehicles with ADS PLUS (Adaptive Damping Sys- tem PLUS)
&WARNING Risk of an accident when trans-
porting vehicles with Adaptive Damping
System PLUS
When transporting vehicles with Adaptive Damping System PLUS, the vehicle/trailer
combination may begin to rock and start to
skid.
Load the vehicle correctly onto the transporter.Secure the vehicle on all four wheels
with suitable tensioning straps.Do not exceed the maximum permissible
speed of 35 mph (60 km/h) when trans-
porting.*NOTE Damage to the vehicle from secur-
ing it incorrectlyAser loading, the vehicle must be
secured on all four wheels. Otherwise,
the vehicle could be damaged.A minimum distance of 8 in (20 cm)
upwards and 4 in (10 cm) downwards
must be kept to the transport platform.Secure the vehicle on all four wheels aser
loading.
4MATIC vehicles/vehicles with automatic trans-
mission
Make sure that the front and rear axles come
to rest on the same transportation vehicle.*NOTE Damage to the drive train due to
incorrect positioning of the vehicleDo not position the vehicle above the
connection point of the transport vehi- cle.
Towing eye
Towing eye 1 is attached to the edge of the
trunk under the trunk Ooor.
Breakdown assistance307

Installing and removing the towing eyePress the mark on cover 1 inwards and
remove.Screw in the towing eye clockwise as far as it
will go and tighten.Make sure that cover 1 engages in the
bumper when you remove the towing eye.*NOTE Damage to the vehicle due to incor-
rect use of the towing eye
When recovering the vehicle by towing it out
using the towing eye, the vehicle may be dam-
aged.
Use the towing eye only for towing or
unhooking the vehicle.Do not use the towing eye for towing out
during recovery.
Tow-starting the vehicle
Vehicles with automatic transmission
*NOTE Damage to the automatic transmis-
sion due to tow starting
The automatic transmission may be damaged
in the process of tow starting vehicles with
automatic transmission.
Vehicles with automatic transmission
must not be tow started.Vehicles with automatic transmissions must
not be tow-started.
Electrical fuses
Notes on electrical fuses
&WARNING Risk of accident and injury due
to overloaded lines
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper-
age, the electric line could be overloaded.
This could result in a Nre.
Always replace faulty fuses with speci-
Ned new fuses containing the correct
amperage.*NOTE Damage due to incorrect fuses
Using incorrect fuses can result in damage to
electrical components or systems or their functions being considerably restricted.
308Breakdown assistance

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