
Model
Capacity
E 300 d 4MATIC
E 400 d 4MATIC 7.5 litres
E 450 4MATIC 6.5 litres
All other models 6.6 litresNote
s on brake fluid Obser
vethe no tes on operating fluids
(/ page 351). &
WARNING Risk of an accident due to
va pour poc kets form ing in the brake sys‐
tem
The brake fluid cons tantly absorbs moi sture
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va pour poc kets may form inthe brake sys‐
te m when the brakes are applied hard.
This impairs the braking ef fect. #
Have the brake fluid rene we d at the
specified inter vals. Ha
ve the brake fluid regularly replaced at a
qu alified specialist workshop.
Only use a brake fluid appr ovedby Mercedes-
Benz according toMB-F reigabe or MB-Appr oval
33 1.0. Coolant
Note
s on coolant
Obser vethe no tes on operating fluids
(/ page 351). &
WARNING Risk offire ‑ and inju ryfrom
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite. #
Allow the engine tocool down before
yo uto p up the antif reeze. #
Make sure that no antifreeze spills out
next tothefiller opening. #
Thoroughly clean the antif reeze from
component parts before starting the
ve hicle. *
NO
TEDama gecaused byincor rect cool‐
ant #
Only use coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction.
Information on coolant is available at thefo l‐
lowing locations:
R inthe Mercedes-Benz Specification for
Operating Fluids 310.1
- at https://be vo.mercedes-benz.com
- inthe Mercedes-Benz BeVo app
R at a qualified specialist workshop *
NO
TEOverheating at high outside tem‐
peratures If an inapp
ropriate coolant is used, the
engine cooling sy stem is not suf ficiently pro‐ Te
ch nical da ta359

Display messages
Possible causes/consequences and M
MSolutions
¯ AdBlue system fault Engine
start not possible *
The AdBlue ®
sy stem is malfunctioning. You can no lon gerst art the engine. #
Consult a qualified specialist workshop immediatel y.Engine oil
Display messages
Possible causes/consequences and M MSolutions
5 Check eng. oil lev. when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Check the engine oil le vel when next refuelling.
To p up the engine oil (/ page 299).
No tes on engine oil (/ page 357).416
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
5 Add 1 litre engine oil when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
When next refuelling, add 1 litre of engine oil (/ page 299).
No tes on engine oil (/ page 357).
5 Engine oil level Reduce oil
level *T
he engine oil le vel is too high.
* NO
TEEngine dama gecaused bydriving with excess engine oil #
Avoid long journe yswith excess engine oil. #
Consult a qualified specialist workshop immediately and ha vethe engine oil le velre duced.
5 Engine oil level Stop vehi-
cle Switch engine off *T
he engine oil le vel is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Switch off the engine. Display messages and
warning/indicator lamps 417

Display messages
Possible causes/consequences and M
MSolutions #
Add 1 l of engine oil (/ page 299). #
Check the engine oil le vel.
No tes on engine oil (/ page 357).
5
Engine oil pressure Stop
Switch off engine *T
he oil pressure is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient oil pressure #
Avoid driving with insuf ficient oil pressure. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Consult a qualified specialist workshop.
5 Engine oil level cannot be
measured *T
he electrical connection tothe oil le vel sensor has been inter rupte d or the oil le vel sensor is faulty. #
Consult a qualified specialist workshop. 41 8
Displaymessa ges and warning/indicator lamps

Ac
tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st....................... 201
Display ................................................. 201
Fu nction .............................................. 201
Ac tive Steering Assist ............................ .203
Ac tivating/deactivating ...................... .205
Ac tive Emergency Stop Assist .............2 05
Fu nction .............................................. 203
Sy stem limits ....................................... 203
Ac tive Traf fic Jam Assist
Ac tivating/deactivating ...................... .206
Fu nction .............................................. 206
Ad aptive brake lights ..............................19 3
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive Highbeam Assist
Fu nction .............................................. 12 8
Switching on/off ................................. 12 9
Ad aptive Highbeam Assist Plus
Fu nction .............................................. 12 9
Switching on/off ................................. 131Ad
Blue ®
.................................................... 356
Ad ditives .............................................3 56
Capacity .............................................. 357
No tes ................................................... 173
Purity ................................................... 356
To pping up ...........................................1 74
Ad ditional door lo ck.................................. 73
Ad diti ves.................................................. 357
Ad Blue ®
............................................... 356
Engine oil ............................................. 357
Fu el ..................................................... 354
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
ADS PLUS damping sy stem
see AIR BODY CONTROL
Ad versewe ather light ............................ .128
Af ter-sales service centre
see ASS YST PLUS AIR
BODY CONT ROL................................ 208
Setting ................................................ .209
Suspension .......................................... 208
Air conditioning menu Calling up ............................................ 14 2
Air distribution Setting ................................................ .141
Setting (MBUX multimedia sy stem) ..... 14 3
Air freshener sy stem
see Frag rance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIR BODY CONTROL
Air vents ................................................... 14 9
Ad justing (front) .................................. 14 9
Ad justing (rear) .................................... 15 0
Ad justing the AIRSCARF vents ............. 15 0
Air vents
see Air vents 434
Index

Blo
wer
see Climate control
BlueTEC see AdBlue ®
Bonn et
Re setting (active bonnet) .................... 296
Boot lid Closing .................................................. 79
HANDS-FREE ACCESS .......................... .81
Locking separa tely ................................ 82
Opening ................................................ .78
Opening dimensions ............................3 61
Brake Assi stSystem
see BAS (Brake Assi stSystem)
Brake fluid Notes .................................................. 359
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 188
Brakes ABS (Anti-lock Braking Sy stem) ........... 185
Ac tive Brake Assi st.............................. 188
Ad aptive brake lights .......................... .193 BA
S (Brake Assi stSystem) .................. 185
Driving tips .......................................... 15 8
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 188
HOLD function .................................... .207
Limited braking ef fect (salt-trea ted
ro ads) .................................................. 15 8
New/replaced brakepads/brake
discs .................................................... 15 6
Ru nning-in no tes ..................................1 56
Braking assi stance
see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions .............. 16
To w- starting ........................................ 327
To wing away ........................................ 323
Tr ansporting theve hicle ......................3 25
Wheel change ...................................... 341
Breakdown see Flat tyre
Buttons Steering wheel .....................................2 46 C
Calls Mercedes me ....................................... 276
Camera see 360° Camera
see Reversing camera
Car key
see Key
Car wash
see Care
Car wash (care) ....................................... 302
Car-to-X-Communication Displaying hazard warnings ................ .270
Care .......................................................... 307
360° Camera ...................................... 305
Air-water duct ...................................... 302
Car wash ............................................. 302
Carpet .................................................3 07
Deco rative foil .................................... .304
Displ ay................................................ 307
Exterior lighting ................................... 305
High-pressure cleaner ......................... 303
Matt finish ........................................... 304 Index
437

Data acquisition
Vehicle ................................................... 31
Data storage
Electronic control units .......................... 31
Online services ...................................... 33
Ve hicle ................................................... 31
Deactivating the ala rm(ATA ).................... 92
Dealership see Qualified specialist workshop
Declaration of conformity Electromagnetic compatibility ............... 24
Jack ...................................................... .27
TIREFIT kit ............................................. 28
Wi reless vehicle components ................24
Decorative foil (cleaning instructions)
.................................................................. .304
DeNO x agent
see AdBlue ®
De stination entry .................................... 267
En tering a POI or address .................... 267
De tecting inat tentiveness
see ATTENTION ASSIST
Diagnostics connection ............................28Diesel
Low outside temp eratures ...................3 54
No tes ................................................... 354
Digital Owner's Manual .............................18
Digital Vehicle Keyst icker
Locking theve hicle ................................ 75
St arting theve hicle ............................. 154
Un locking theve hicle ............................75
Dinghy towing
see Tow- bar sy stem
Dipped beam Setting .................................................1 31
DIRECT SELECT le ver............................... 16 6
Engaging drive position ....................... 16 8
Engaging neutral .................................. 167
Engaging pa rkposition ........................ 16 8
Engaging pa rkposition automatically .. 16 8
Engaging reve rsege ar ........................ .167
Fu nction .............................................. 16 6
Display (care) .......................................... .307
Display (MBUX multimedia sy stem)
Home screen ...................................... .253 Display (multimedia sy
stem) ................ .254
Operating ............................................ 254
Display (on-board computer) Displa yson the multifunction display .. 24 8
Display message .................................... .365
Calling up (on-boa rdcompu ter) .......... .365
No tes .................................................. 365
Display messages ¯ - - - km/h ................................... 389
ç - - - km/h ................................... 390
È - - - km/h ................................... 389
# 12V battery See Owner's Man‐
ual ....................................................... 406
Û 48 V battery See Owner's Man‐
ual ....................................................... 407
: Active Light Sy stem inopera‐
tive ...................................................... 372
¯ AdBlue sy stem fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km ................................................ 41 5440
Index

¯
AdBlue sy stem fault Emer‐
ge ncy op. in XXX miles See Owner's
Manual ................................................. 41 5
¯ AdBlue sy stem fault Engine
st art not possible ................................ .416
¯ AdBlue sy stem fault See Own‐
er's Manual .......................................... 41 5
5 Add 1 litre engine oil when
next refuelling ...................................... 417
é ATTENTION ASSIST inoperative
.............................................................3 96
é ATTENTION ASSIS T:Take a
break! .................................................. 396
: Automatic driving lights inoper‐
ative ..................................................... 371
Á Changekey bat teries ................. 369
J Check brake fluid le vel.............. .388
# Checkbrake pads See Owner's
Manual ................................................ 388 5
Check eng. oil le v.when next
re fuelling .............................................. 416
ï Check trailer hit chlock .............. 375
h Check tyre(s) .............................. 41 0
! Clean the fuel filter .................... .381
ÿ Coolant Stop vehicle Switch
engine off ............................................ 380
_ Currently una vailable Camera
view restricted ..................................... 400
ç Currently unavailable Radar
sensors dirty .......................................3 99
! currently una vailable See Own‐
er's Manual .......................................... 401
÷ currently una vailable See Own‐
er's Manual ........................................ .402
5 Engine oil le vel cannot be
measured ............................................ .418
5 Engine oil le velRe duce oil le vel.. 417
5 Engine oil le velSt op vehicle
Switch engine off ................................. 4175
Engine oil pressu reStop
Switch off engine ................................. 41 8
ä Fault Drive at max. 80 km/h ...... 393
6 Front left malfunction Consult
wo rkshop (e xample)............................ 366
_ Front left seat backrest not
loc ked (e xamp le)................................ .378
& inoperative Battery low ...............374
& inoperative Refuel vehicle ........... 374
& inoperative See Owner's Man. ....374
! inoperative See Owner's Man‐
ual ....................................................... 402
÷ inoperative See Owner's Man‐
ual ....................................................... 403
T inoperative See Owner's Man‐
ual ....................................................... 404
G Inoperati ve................................. 405
: Intelligent Light Sy stem inoper‐
ative ....................................................3 72 Index
441