trailer MERCEDES-BENZ E-CLASS SALOON 2021 Service Manual

Mounting dimensions of t
Mounting dimensions of t
he tr
he trailer hitch
ailer hitch 1
Fastening points
2 Overhang dimension
3 Rear axle cent reline The
overhang dimension and fastening points are
va lid for a trailer hitch installed at thefa ctor y.
N N o ot
tes on t
es on t he maximum t
he maximum t ongue w
ongue weight and load
eight and load
capacity
capacity
* NO
NOTE
TEDamage caused bythe trailer com-
ing loose If
th eto ngue weight used is too lo w,the trailer
may come loose. #
The tongue weight must not be below
50 kg. #
Use a tongue weight that is as close as
possible tothe maximum permissible
to ngue weight. *
N
NOOTE
TE Damage caused bythe bicycle rack
coming loose When using a bicycle
rack , bo th th e maximal
to ngue weight and the maximal load capacity
should be obser ved. #
Do not exceed the permissible load
capacity. When using a bicycle
rack , obser vethe informa-
tion on the function of the bicycle rack and the
additional no tes on the maximum load capacity
(/ page 278).
Te ch nical data on theto ngue weight and load
capacity (/ page 431). Ov
Ov
er
erhang dimension f
hang dimension f or t
or the tr
he tr ailer hitc
ailer hitc h (plug-in
h (plug-in
h
h ybr
ybr id)
id) The
overhang dimension is valid for a trailer hitch
installed at thefa ctor y.
Ov
Ov er
erhang dimension leng th
hang dimension length Model
Model
Ov
Over
erhang dimension
hang dimension
All model s1 243 mm Ov Ov
er
erhang dimension f
hang dimension f or t
or the tr
he tr ailer hitc
ailer hitc h (no
h (not f
t for
or
plug-in h
plug-in h ybr
ybrid)
id) The
overhang dimension is valid for a trailer hitch
installed at thefa ctor y. 430 430
Te
ch nical data

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot for starting the engine with theke y (/ page 168). Lights Lights
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences and0050
0050Solutions
Solutions
:
Left dipped beam (examp le) *T
he cor responding light source is defecti ve. #
Drive on carefull y. #
Consult a quali/ed specialist workshop immediatel y.
% LED light sources: the display message forth e cor responding light appears only when all the light-emitting diodes
in the light are faulty.
: Malfunction See Owner's
Manual *T
heexterior lighting is malfunctioning. #
Consult a quali/ed specialist workshop.
*V Vehicles wit ehicles wit h a tr
h a trailer hitc
ailer hitc h:
h:a fuse may ha veblown. #
Stop theve hicle in accordance with the tra1c conditions. #
Check the fuses and replace them if necessary (/ page 392).440
440
Display messages and
warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
003B
Pre-entry climate control
(via key) inoperative HV-
battery low *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry clima tecont rol cannot be switched on. #
Char gethe high-voltage batter y.
When the high-voltage battery is su1ciently charge d, pre-ent ryclimate cont rol will be operational again. Hybr Hybr
id syst
id syst em
em Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences and0050
0050Solutions
Solutions
u
Towing not permitted See
Owner's Manual *T
he drive system is malfunctioning. #
Have theve hicle transpo rted only using a transpor ter or trailer (/ page 387).446 446
Display messages and
warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
ï
Operation only possible in
transmission position P *T
he ball neck will not swivel because transmission position 005B,005Eor neutral 005Cis selected. #
Depress the brake pedal. #
Engage park position 005D.
ï Trailer coupling extending… *T
he ball neck is retracting/extending.
Do not attem pttospeed up, slow down or initiate the swivel mo vement using your hand, foot or other aids. During the
swivel mo vement, do not couple a trailer.
When the ball neck has reached an operational position, the display message will disappear.
ï Check trailer hitch
lock (white display message) *T
he trailer hitch is not operational during a jou rney with a trailer. &
W WARNING
ARNING Risk of an accident if the ball neck is not loc ked
The trailer may become de tach ed. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivel mo vement and do not re-couple the trailer until thewa rning/indicator lamp goes out. #
Initiate a new swivel mo vement (/ page 273). #
When the display message disappears, couple up the trailer and drive on. Display messages and
warning/indicator lamps
453
453

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
If th e display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not loc ked. #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe unloc ked
ball nec k. #
Consult a quali/ed specialist workshop.
*W hen theve hicle is stationary with a coupled trailer, the trailer hitch is not operational. #
Uncouple the coupled trailer and secure it against rolling away. #
If t If the ball nec he ball nec k has been re
k has been retr
tract
act ed:
ed: initiate a new swi vel mo vement (/ page 273).
The ball neck will engage vertically in the loc ked position and then engage beneath the bumper. #
If t
If the ball nec
he ball nec k has been e
k has been e xt
xtended:
ended: initiate a new swivel mo vement (/ page 273).
The ball neck will engage beneath the bumper.
If th e display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not loc ked. #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe unloc ked
ball nec k. #
Consult a quali/ed specialist workshop.
Head-up display currently
unavailable See Owner's
Manual *T
he head-up displ ayistemp orarily una vailable. Possible causes:
R malfunctions in the po wer supply
R signal inter fere nce #
Stop in accordance with the tra1c conditions and switch theve hicle o. and on again. 454 454
Displ
aymessages and warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop.
Blind Spot Assist not availa-
ble when towing a trailer
See Owner's Manual *W
hen you establish the electrical connection tothe trailer, Blind Spot Assist will be una vailable. #
Press the leT-hand Touch Control and ackno wledge the display message.
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctive Blind Spot Assist is temp orarily una vailable.
The system limits ha vebeen reached (/ page 245).
Once the cause of the problem is no longer present, the system will be available again. #
Drive on
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra1c conditions and restart
th eve hicle.
Active Blind Spot Assist
inoperative *A
ctive Blind Spot Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
475 475

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
Active Blind Spot Assist
not available when towing
a trailer See Owner's Man-
ual *W
hen you establish the electrical connection tothe trailer, Active Blind Spot Assist will be una vailable. #
Press the leT-hand Touch Control and ackno wledge the display message.
Active Lane Keeping Assist
currently unavailable See
Owner's Manual *A
ctive Lane Keeping Assist is temp orarily una vailable.
The ambient conditions are outside the system limits (/ page 247).
As soon as the ambient conditions are within the system limits, the system will become available again. #
Drive on
Active Lane Keeping Assist
inoperative *A
ctive Lane Keeping Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop. 476 476
Displ
aymessages and warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions #
Set a higher vehicle le vel (/ page 251).
Depending on the malfunction, theve hicle will be raised.
¢ Lowering *T
hevehicle le vel will lo werfo rth efo llowing reasons:
R You ha veselected a di.erent drive prog ram.
R You ha veexceeded the speed limit.
R You ha vechanged theve hicle le velby pressing the button.
00CC Vehicle rising *Y
our vehicle is adjusting tothe le velyo u ha veselected.
00CC Vehicle rising Please wait *T
hevehicle le vel is too lo w.The vehicle will be raised tothe selected vehicle le vel. #
Wait until the display message disappears before pulling away.
00CC
Please reduce speed *Y
ou are driving toofast forth e selected vehicle le vel. #
Toadjust theve hicle le vel,yo u must not drive at speeds greater than 60 km/h. #
Toadjust theve hicle le vel during trailer operation, you must not drive at speeds greater than 30 km/h. 480
480
Displ
aymessages and warning/indicator lamps

Ins
Ins
tr
trument displ ay
ument display Depending on
the display setting, the positions of
th e indicator lamps on the inst rument display may
di.er from theex ample shown.
Indicat
Indicat or and w
or and w ar
arning lam
ning lam ps:
ps:
0075 Restraint system (/ page 501)
00E9 Seat belt (/ page 501)
_ Reduced po wer (/ page 502)
00D6 System error (/ page 502)
003D Electricalfault (/ page 502)
ï Trailer hitch (/ page 503)
Ù Powe r steering (/ page 503) ÿ
Coolanttemp erature (/ page 505)
00B9 Engine diagnostics (/ page 505)
0028 V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow
003D Electricalfault (/ page 505)
00B6 Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 505)
0024 Electric parking brake (red)
(/page 508)
0024 Electric parking brake (yellow)
(/page 508)
004D Brakes (yellow) (/ page 508)
004D Brakes (red) (/ page 508)
L Distancewarning (/ page 510)
Ó Active Brake Assist (/ page 510)
ê Active Brake Assist (/ page 510)
ä AIR BODYCONTROL (/ page 510)
ä DYNAMIC BODY CONTROL
(/ page 510)
0025 ABS (/page 511)
00E5 ESP®
(/ page 511) 00BB
ESP®
OFF (/ page 511)
0077 Tyre pressure monitoring system
(/ page 514)
0060 Standing lights (/ page 134)
0058 Low beam (/ page 134)
0057 High beam (/ page 136)
003E003D Turn signal lights (/ page 136)
005E Rear fog light (/ page 134) 500 500
Display message
s andwarning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions #
Consult a quali/ed specialist workshop. #
Notethe messages on the instrument displa y.
ï
Tr ailer tow hitch warning
lamp *T
hered trailer hitch warning lamp is lit.
The trailer hitch is not operational or is swivelling. &
W
WARNING
ARNING Risk of an accident if the ball neck is not loc ked
The trailer may become de tach ed. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivel mo vement and do not re-couple the trailer until thewa rning/indicator lamp goes out. #
Notethe messages on the instrument displa y.
If th e trailer hitch is swivelling: #
Wait until the ball neck has reached the operational position. 504
504
Display messages and
warning/indicator lamps