ECU MERCEDES-BENZ METRIS 2020 MY20 Operator’s Manual

Symbols
G
WARNING
Warning notes make you aware of dangers
that can threaten your health or life as well
as the health and life of other persons.
Observe the warning notes. H
Environmental note
Environmental notes provide you with infor-
mation on environmentally aware actions or
disposal.
! Notes on material damage alert you to
dangers that could lead to damage to your
vehicle.
i These symbols indicate useful instructions
or further information that could be helpful
to you.
X This symbol designates an instruc-
tion you must follow.
X Several consecutive symbols indi-
cate an instruction with several
steps.
(Y page) This symbol tells you where you can
find further information on a topic.
Y Y This symbol indicates a warning or
an instruction that is continued on
the next page.
Display This text indicates a message on the
display.Registered trademarks
ESP ®
is a registered trademark of Daimler AG. Vehicle distributor
Mercedes-Benz USA, LLC
One Mercedes-Benz Drive
Sandy Springs, GA 30328
www.mbusa.com
Customer Assistance Center:
1-877-762-8267 Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, ON M4G 4C9
www.mercedes-benz.ca
Customer Relations Department:
1-800-387-0100
Mercedes-Benz USA, LLC and Mercedes-Benz
Canada Inc. are Daimler companies.

Display messages (vehicles with
steering wheel buttons) .......................
209
Indicator and warning lamps in the
instrument cluster ............................... 227 Stowing and features .......................
238
Useful information ...............................
238
Stowage spaces and stowage com-
partments ............................................ 238
Sun visors ............................................ 239
Cup holder ........................................... 239
Bottle holder ........................................ 240
Ashtray ................................................ 240
Cigarette lighter ................................... 240
12 V socket ......................................... 241
Mobile communications equipment ..... 241 Transporting loads
............................242
Useful information ...............................
242
Loading guidelines ............................... 242
Load distribution ................................. 243
Securing loads ..................................... 244
Lashing straps ..................................... 246
Securing loads ..................................... 248
Carrier systems ................................... 249 Maintenance and care
......................250
Useful information ...............................
250
Engine compartment ........................... 250
Maintenance ........................................ 257
Battery ................................................. 258
Care ..................................................... 263 Breakdown assistance
.....................270
Useful information ...............................
270
Where will I find...? .............................. 270
Flat tire ................................................ 272
Jump-starting ....................................... 272
Tow-starting and towing away ............. 274
Electrical fuses .................................... 277 Wheels and tires ...............................
278
Useful information ...............................
278
Important safety notes ........................ 278
Operation ............................................ 278 Operation in winter .............................. 280
Tire pressure

....................................... 282
Loading the vehicle .............................. 289
What you should know about wheels
and tires .............................................. 292
Changing wheels ................................. 297
Wheel and tire combinations ............... 301
Spare wheel ......................................... 302 Technical data ...................................
304
Useful information ...............................
304
Vehicle electronics .............................. 304
Identification plates ............................. 304
Service products and capacities .......... 305
Vehicle data ......................................... 312 Contents
3

Load protection net ...........................
248
Loading guidelines ............................ 242
Loading rails
Maximum tensile strength ............. 314
Loads
Securing ........................................ 244
Transporting .................................. 242
Locking
see Central locking
Locking centrally
see Central locking
Low-beam headlamps
Display messages (vehicle with
steering wheel buttons) ................. 216
Display messages (vehicle with-
out steering wheel buttons) ........... 202
Driving abroad ............................... 141
Replacing bulbs ............................. 106
Switching on/off ........................... 100
Lumbar support ................................... 89M
M+S tires ............................................
280
Maintenance ...................................... 257
Maintenance points under the
hood .................................................... 252
Maximum permissible speed
Speed limitation (tires) .................. 141
Mechanical key
Function/notes ................................ 72
Inserting .......................................... 73
Locking vehicle ................................ 73
Removing ......................................... 72
Media Interface
Connections ..................................... 43
Memory card (audio) ......................... 187
Memory function
Seat ................................................. 97
Mercedes-Benz Commercial Van
Center
see Qualified specialist workshop
Mercedes-Benz Service24h .............. 272
Message memory
On-board computer (vehicle with
steering wheel buttons) ................. 209
On-board computer (vehicle with-
out steering wheel buttons) ........... 195 Messages
see Warning and indicator lamps
Mirrors
Exterior mirrors

................................ 97
Important safety notes .................... 96
Rear-view mirror .............................. 96
see Vanity mirror
Mobile phone
Type approval/frequency .............. 304
Mobile phone
see Telephone
Model series
see Vehicle identification plate
Modifying the programming
(SmartKey) ........................................... 72
Mounting wheels
Lowering the vehicle ...................... 300
Mounting a new wheel ................... 300
Preparing the vehicle ..................... 298
Raising the vehicle ......................... 298
Removing a wheel .......................... 299
Removing and mounting the
spare wheel ................................... 303
Securing the vehicle against roll-
ing away ........................................ 298
MP3
Operation ....................................... 187 N
Navigation Menu (on-board computer) ............

185
Notes on breaking-in a new vehi-
cle ....................................................... 126 O
Occupant Classification System
(OCS) Conditions .......................................

54
Faults ............................................... 57
Operation ......................................... 54
Self-test ........................................... 56
Occupant safety
Air bags ........................................... 51
Automatic measures after an
accident ........................................... 60
Belt warning ..................................... 50
Children in the vehicle ..................... 60 Index
15

Hill start assist ............................... 129
Q
QR code Rescue card
..................................... 35
Qualified specialist workshop ........... 32R
Radiator cover .....................................
34
Radio
Selecting a station ......................... 187
see separate operating instructions
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 31
Rail transport
see Transport by rail
Rain sensor
Setting the sensitivity .................... 109
Setting the sensitivity (vehicle
with steering wheel buttons) ......... 193
Setting the sensitivity (vehicle
without steering wheel buttons) .... 180
Reading lamp ..................................... 102
Rear bench seat
EASY-ENTRY/EXIT feature ............... 90
General notes .................................. 89
Installation options .......................... 90
Removing/installing (standard
rear bench seat) ............................... 91
Seat anchorage ................................ 89
Seat rails .......................................... 89
Seating variants ............................... 90
Rear compartment
Activating/deactivating climate
control ........................................... 117
Seating variants ............................... 90
Setting the air vents ...................... 125
Setting the temperature ................ 119
Switching the interior lighting
on/off ............................................ 103
Rear door
Display messages (vehicle with
steering wheel buttons) ................. 226
Display messages (vehicle with-
out steering wheel buttons) ........... 208 Important safety notes .................... 82
Indicator lamp ................................

237
Opening at an angle of 180° or
270° ................................................ 83
Opening dimensions ...................... 313
Opening/closing from inside ........... 83
Opening/closing from the out-
side .................................................. 82
Rear fog lamp
Display messages (vehicle with
steering wheel buttons) ................. 217
Display messages (vehicle with-
out steering wheel buttons) ........... 203
Replacing bulbs ............................. 108
Switching on/off ........................... 100
Rear view camera
Cleaning instructions ..................... 267
Coupling up a trailer function ........ 167
Function/notes ............................. 163
General notes ................................ 163
Important safety notes .................. 164
Messages in the display ................. 165
Reverse parking ............................. 166
Switching on/off ........................... 165
Rear window defroster
Problem (malfunction) ................... 122
Switching on/off ........................... 122
Rear window wiper
Replacing the wiper blade .............. 112
Switching on/off ........................... 110
Rear-compartment air-condition-
ing system
see Climate control
Rear-compartment heating
see Climate control
Rear-view mirror
Anti-glare (manual) .......................... 96
Recuperation display ........................ 178
Recycling
see Protection of the environment
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 311
Refueling
Fuel filler flap ................................. 137
Fuel gauge (vehicle with steering
wheel buttons) ................................. 4018
Index

Summer tires in winter .................. 280
TIN (Tire Identification Number)
(definition) .....................................
297
Tire bead (definition) ...................... 297
Tire pressure (definition) ................ 296
Tire pressures (recommended) ...... 295
Tire size designation, load-bear-
ing capacity, speed rating .............. 293
Tire tread ....................................... 279
Tire tread (definition) ..................... 297
Total load limit (definition) ............. 297
Traction (definition) ....................... 297
TWR (permissible trailer drawbar
noseweight) (definition) ................. 297
Uniform Tire Quality Grading
Standards (definition) .................... 295
Wear indicator (definition) ............. 297
Wheel and tire combination ........... 302
Wheel rim (definition) .................... 296
Wheel/tire combinations ............... 301
Tool
see Vehicle tool kit
Top Tether ............................................ 63
Tow-starting
Emergency engine starting ............ 277
Important safety notes .................. 274
Towing
If the vehicle is stuck ..................... 276
Installing/removing the towing
eye ................................................. 275
Towing a trailer
Active Parking Assist ..................... 159
Axle load, permissible .................... 315
Cleaning the trailer tow hitch ......... 268
Coupling up a trailer ...................... 170
Decoupling a trailer ....................... 171
Driving tips .................................... 168
Notes on retrofitting ...................... 315
Power supply ................................. 173
Trailer loads ................................... 315
Towing away
Important safety guidelines ........... 274
With both axles on the ground ....... 276
With the rear axle raised ................ 276
Towing eye
Storage location ............................ 270
Trailer coupling
see Towing a trailer Trailer loads and drawbar nose-
weights
...............................................
172
Trailer operation
Lights display messages (vehicle
with steering wheel buttons) ......... 216
Lights display messages (vehicle
without steering wheel buttons) .... 202
Trailer towing
Blind Spot Assist ............................ 153
ESP ®
................................................ 69
PARKTRONIC ................................. 159
Permissible trailer loads and
drawbar noseweights ..................... 172
Transmission
see Automatic transmission
Transmission oil ................................ 310
Transmission positions
Automatic transmission ................. 132
Display (DIRECT SELECT lever) ...... 132
Transport
Lashing straps ............................... 246
Loading guidelines ......................... 242
Stickers ......................................... 246
Vehicle ........................................... 276
Transport by rail ................................ 142
Transportation
Rail ................................................ 142
Transportation aids
Load protection net ....................... 248
Transporting
Cargo compartment variations ...... 244
Load distribution ............................ 243
Securing a load .............................. 244
Trim pieces (cleaning instruc-
tions) .................................................. 269
Trip computer
Displaying (vehicle with steering
wheel buttons) ............................... 184
Displaying (vehicle without steer-
ing wheel buttons) ......................... 177
Resetting (vehicle with steering
wheel buttons) ............................... 185
Resetting (vehicle without steer-
ing wheel buttons) ......................... 177
Selecting the display units (vehi-
cle with steering wheel buttons) .... 192 Index
23

Selecting the display units (vehi-
cle without steering wheel but-
tons) ..............................................
180
Trip meter
see Trip odometer
Trip odometer
Displaying (vehicle with steering
wheel buttons) ............................... 183
Displaying (vehicle without steer-
ing wheel buttons) ......................... 177
Resetting (vehicle with steering
wheel buttons) ............................... 185
Resetting (vehicle without steer-
ing wheel buttons) ......................... 177
Setting the display unit (vehicle
with steering wheel buttons) ......... 192
Setting the display unit (vehicle
without steering wheel buttons) .... 180
Truck
see Vehicle
Truck key
see SmartKey
Turn signal
Changing bulbs (additional turn
signals) .......................................... 107
Turn signals
Display messages (vehicle with
steering wheel buttons) ................. 216
Display messages (vehicle with-
out steering wheel buttons) ........... 202
Replacing bulbs (front) ................... 107
Replacing bulbs (rear) .................... 108
Switching on/off ........................... 101
Trailer display messages (vehicle
with steering wheel buttons) ......... 216
Trailer display messages (vehicle
without steering wheel buttons) .... 202
Turn signals
see Turn signals
Two-way radios
Type approval/frequency .............. 304
TWR (Tongue Weight Rating) (def-
inition) ................................................ 297
Type identification plate
see Vehicle identification plate U
Unlocking Emergency unlocking
....................... 73
From inside the vehicle (central
unlocking button) ............................. 75
With emergency key element ........... 72
USB (audio)
Playing ........................................... 187 V
Vanity mirror Changing a bulb (mirror lamp)

....... 104
Sun visor ........................................ 239
Vehicle
Data acquisition ............................... 35
Display messages (vehicle with
steering wheel buttons) ................. 225
Display messages (vehicle with-
out steering wheel buttons) ........... 208
Electronics ..................................... 304
Emergency unlocking ....................... 72
Equipment ....................................... 27
Limited Warranty ............................. 27
Loading .......................................... 289
Locking (in an emergency) ............... 73
Locking (SmartKey) .......................... 71
Lowering ........................................ 300
Maintenance .................................... 28
Operating safety .............................. 30
Parking for a long period ................ 140
Pulling away ................................... 128
Raising ........................................... 298
Registration ..................................... 33
Reporting problems ......................... 32
Securing from rolling away ............ 138
Towing away .................................. 274
Transporting .................................. 276
Unlocking (in an emergency) ........... 73
Unlocking (SmartKey) ...................... 71
Vehicle battery
see Battery (vehicle)
Vehicle bodies ..................................... 33
Body/equipment mounting
directives for trucks ......................... 33
Vehicle check
see Preparing for a journey24
Index

Toronto, Ontario M4G 4C9
Possible hazard due to substances
that are hazardous to health
In compliance with Proposition 65 (“Prop65”),
the following detachable label has been added
to each vehicle sold in California: Proper use
Observe the following information in particular
when operating your vehicle:
R the safety notes in these Operating Instruc-
tions
R the technical data in these Operating
Instructions
R traffic laws and regulations
R laws pertaining to motor vehicles and safety
standards
There are various warning stickers on the vehi-
cle. If you remove the warning sticker, you or
others may not recognize dangers. Do not
move the warning sticker from its original posi-
tion. G
WARNING
Modification to electronic components, their
software or wiring could impair their func-
tion and/or the function of other networked
components. In particular, systems relevant
to safety could also be affected. As a result,
these may no longer function properly
and/or jeopardize the operating safety of
the vehicle. There is an increased risk of
accident and injury. You must not tamper with wiring, electronic
components, or their software. You should
have all work on electrical and electronic
components carried out at a qualified spe-
cialist workshop. G
WARNING
Gases and fluids from substances that con-
stitute a health hazard or react aggressively
can escape even from securely closed con-
tainers. When transporting such substances
in the vehicle interior, your ability to concen-
trate or your health could be affected during
the journey. Malfunctions, short circuits or
electrical component system failures may
also result. There is a risk of an accident and
fire.
Do not store or transport any substances in
the vehicle interior which are hazardous to
health or react aggressively.
Always observe these instructions, even in the
case of vehicles where the load compartment
is not completely separated from the cab.
Partition with door/window: keep the door/
window in the partition closed during trans-
port.
Examples of substances that constitute a
health hazard or react aggressively include:
R Solvents and DEF
R Fuel
R Oil and grease
R Cleaning agents
R Acids Protection of the environment
Economic and environmentally
aware driving
H
Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner Introduction
29 Z

longer withstand the strain they are designed
for.
If the underbody paneling is damaged, flamma-
ble material, such as leaves, grass or twigs,
could collect between the underbody and
underbody paneling. If these materials come in
contact with hot parts of the exhaust system
for an extended period, they can catch fire.
G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact
with hot parts of the exhaust system. There
is a risk of fire.
When driving on an unpaved road or off-
road, check the vehicle underside regularly.
In particular, remove trapped plant parts or
other flammable material. Contact a quali-
fied specialist workshop immediately if dam-
age is detected.
Have the vehicle checked and repaired imme-
diately at a qualified specialist workshop. If, on
continuing your journey, you notice that driv-
ing safety is impaired, pull over and stop the
vehicle immediately, paying attention to road
and traffic conditions. In such cases, consult a
qualified specialist workshop. Declarations of conformity
Vehicle components which receive
and/or transmit radio waves USA: "The wireless devices of this vehicle
comply with Part 15 of the FCC Rules. Opera-
tion is subject to the following two conditions:
1) These devices may not cause harmful inter-
ference, and 2) These devices must accept any
interference received, including interference
that may cause undesired operation. Changes
or modifications not expressly approved by the
party responsible for compliance could void
the user's authority to operate the equip-
ment".
Canada: "The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the
following two conditions: (1) These devices
may not cause interference, and (2) These
devices must accept any interference, includ- ing interference that may cause undesired
operation of the device".
Diagnostics connection
The diagnostics connection is used for con-
necting diagnostic equipment at a qualified
specialist workshop. G
WARNING
If you connect equipment to a diagnostics
connection in the vehicle, it may affect the
operation of vehicle systems. As a result,
the operating safety of the vehicle could be
affected. There is a risk of an accident.
Only connect equipment to a diagnostics
connection in the vehicle, which is approved
for your vehicle by Mercedes-Benz. G
WARNING
Make sure that there is sufficient clearance
around the pedals when floormats are used,
and that the floormats are properly secured.
The floormats must be correctly secured at
all times using the securing knob and retain-
ers.
Before you drive off, check the floormats
and secure them if necessary. A floormat
which is not properly secured can slip and
thereby interfere with the movement of the
pedals.
Do not place floormats on top of one
another.
! Draining the battery through using devices
on the diagnostics connection.
Using devices at the diagnostics connection
places a load on the battery.
R Check the battery charge status.
R Charge the battery if the charge status is
low. Introduction
31 Z

vehicle. This also includes labeling and docu-
mentation affected by their modifications.
It is their responsibility to certify that:
R the altered vehicle conforms to all applica-
ble standards and regulations affected by
the vehicle alteration
R the altered vehicle continues to comply with
the motor vehicle safety standards and
emissions regulations
R the changes or installation of accessories do
not impair the safety of the vehicle
We are not responsible for any final certifica-
tion or claims regarding product liability or
warranty claims that arise as a result of such
changes. This applies to:
R components, assemblies or systems which
have been altered
R non-compliance with emissions laws and
regulations or with vehicle safety standards
arising as a result of the alterations
R all consequences resulting form the
changed, less safe or even defective vehicle
We do not assume responsibility as the final
stage manufacturer or the consequential prod-
uct liability.
Notes on the engine radiator Even seemingly small changes to the vehicle,
such as attaching a radiator trim for winter
driving or as protection against insects, are
not permitted. Do not cover the radiator. Do
not use thermal mats, insect protection covers
or anything similar.
Doing so can cause the diagnostics system to
display inaccurate values. Some of these val-
ues are legally required and must always be
correct.
Notes for commercial vehicles without
partitions Vehicles, which are approved as commercial
vehicles (N1), do not comply with the
ISO 27956
standard in the respective current
valid version unless equipped with a partition.
The ISO 27956 Standard details the equip-
ment for correct load securing in delivery vehi-
cles. Retrofitting the partition is strongly rec-
ommended when using the vehicle for the
transport of goods, as correct load securing in
vehicles without the partition is difficult to
achieve. Genuine Mercedes-Benz parts
! Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for
these restraint systems, may be installed in
the following areas of your vehicle:
R doors
R door pillars
R door sills
R seats
R cockpit
R instrument cluster
R center console
Do not install accessories such as audio sys-
tems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficiency of the restraint sys-
tems.
Have aftermarket accessories installed at a
qualified specialist workshop. H
Environmental note
We supply reconditioned assemblies and
parts which are of the same quality as new
parts. The same New Vehicle Limited War-
ranty applies as for new parts.
The operating safety of the vehicle could be
jeopardized if you use parts, tires and wheels
as well as accessories relevant to safety which
have not been approved by Mercedes-Benz.
This could lead to malfunctions in safety-rele-
vant systems, e.g. the brake system. Only use
genuine Mercedes-Benz parts or parts of equal
quality. Only use tires, wheels and accessories
that have been specifically approved for your
vehicle.
Mercedes-Benz tests genuine Mercedes-Benz
parts, conversion parts and accessories that
have been specifically approved for the type of
vehicle for:
R Reliability
R Safety
R Suitability
Despite ongoing market research, Mercedes-
Benz is unable to assess other parts. Even if
an independent or official approval has been
provided in exceptional cases, Mercedes-Benz
accepts no responsibility for the use of such
parts in Mercedes-Benz vehicles. 34
Introduction

This data can be saved locally in the vehicle or
is located on a device that you have connected
to the vehicle (e.g. smartphone, USB flash
drive or MP3 player). If this data is saved in
the vehicle, you can delete it at any time.
Transfer of this data to third parties is only
possible at your request, predominantly while
using online services and in accordance with
the settings you have selected.
You can save convenience settings/customi-
zations in the vehicle and change them at any
time.
Depending on the piece of equipment in ques-
tion, these can include:
R settings for the seat and steering wheel
positions
R suspension and air-conditioning settings
R customizations such as interior lighting
If your vehicle is equipped appropriately, you
can connect your smartphone or another
mobile end device to the vehicle. You can
operate this device using the integrated con-
trols in the vehicle. This allows images and
sound from the smartphone to be output
through the multimedia system. Simultane-
ously, certain information is transferred to
your smartphone.
Depending on the type of integration, this can
include:
R general vehicle status
R position data
This allows the use of selected smartphone
apps, such as navigation or music player apps.
No further interaction between smartphone
and vehicle takes place and, in particular, it is
not possible to actively access vehicle data.
The type of additional data processing is deter-
mined by the provider of the app being used.
Which settings can be made, if at all, depend
on the respective app and the operating sys-
tem of your smartphone. Online services
Wireless network connection If your vehicle has a wireless network connec-
tion, data can be exchanged between your
vehicle and other systems. The wireless net-
work connection is made possible by the vehi-
cle's own transceiver or by mobile end devices
that you have brought into the vehicle (e.g. smartphones). This wireless network connec-
tion can be used to access online functions.
This includes online services and apps provi-
ded by the manufacturer or other providers.
Services provided by the manufacturer In the case of the manufacturer's online serv-
ices, the manufacturer describes the functions
in a suitable place (e.g. manufacturer's operat-
ing instructions, website) and provides the
associated information subject to data protec-
tion legislation. Personal data may be used
when providing online services. The data
exchange for this takes place via a secure con-
nection, e.g. with the manufacturer's IT sys-
tems intended for the purpose. The collection,
the processing and the use of personal data
above and beyond the provision of services is
only permitted on the basis of a legal permit or
the consent of the person involved.
In most cases, you can enable or disable the
services and functions, some of which are sub-
ject to a charge. In some cases it will also
apply to the entire data connection of the vehi-
cle. There are exceptions to this; in particular,
legally prescribed functions and services such
as the "E-Call" traffic emergency call system.
Services provided by third parties If it is possible to use online services from
other providers, these services are the respon-
sibility of the provider in question and subject
to that provider's data protection conditions
and terms of use. The manufacturer has no
influence over the content exchanged in this
connection.
Please ask the respective service provider for
information on the type, extent and purpose of
the collection and use of personal data in the
context of services provided by third parties.36
Introduction