
242Service and maintenanceRecommended fluids,lubricants and parts
Recommended fluids and lubricants
Only use products that meet the
recommended specifications.9 Warning
Operating materials are
hazardous and could be
poisonous. Handle with care. Pay
attention to information given on
the containers.
Engine oil
Engine oil is identified by its quality
and its viscosity. Quality is more
important than viscosity when
selecting which engine oil to use. The oil quality ensures e.g. engine
cleanliness, wear protection and oil
aging control, whereas viscosity
grade gives information on the oil's
thickness over a temperature range.
Dexos is the newest engine oil quality
that provides optimum protection for
petrol and diesel engines. If it is
unavailable, engine oils of other listed qualities must be used.
Recommendations for petrol engines
are also valid for Compressed Natural
Gas (CNG), Liquified Petroleum Gas
(LPG) and Ethanol (E85) fuelled
engines.
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 246.
Topping up engine oilCaution
In case of any spilled oil, wipe it up and dispose it properly.
Engine oils of different manufacturersand brands can be mixed as long as
they comply with the required engine
oil quality and viscosity.
Use of engine oils for all petrol
engines with only ACEA quality is
prohibited, since it can cause engine
damage under certain operating
conditions.
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 246.
Additional engine oil additives
The use of additional engine oil
additives could cause damage and
invalidate the warranty.
Engine oil viscosity grades
The SAE viscosity grade gives
information of the thickness of the oil.
Multigrade oil is indicated by two
figures, e.g. SAE 5W-30. The first
figure, followed by a W, indicates the
low temperature viscosity and the
second figure the high temperature viscosity.
Select the appropriate viscosity grade depending on the minimum ambient
temperature 3 246.

264Customer informationOperating data in the vehicleControl units process data for
operation of the vehicle.
This data includes, for example: ● vehicle status information (e.g. speed, movement delay, lateral
acceleration, wheel rotation rate, "seat belts fastened" display)
● ambient conditions (e.g. temperature, rain sensor,
distance sensor)
As a rule such data is transient and is
not stored for longer than an
operational cycle, and only processed on board the vehicle itself. Often
control units include data storage
(including the vehicle key). This is
used to allow information to be
documented temporarily or
permanently on vehicle condition,
component stress, maintenance
requirements and technical events
and errors.Depending on technical equipment
levels, the data stored is as follows:
● system component operating states (e.g. fill level, tyre
pressure, battery status)
● faults and defects in important system components (e.g. lights,
brakes)
● system reactions in special driving situations (e.g. triggering
of an airbag, actuation of the
stability control systems)
● information on events damaging the vehicle
● for electric vehicles the amount of
charge in the high-voltage
battery, estimated range
In special cases (e.g. if the vehicle
has detected a malfunction), it may be
necessary to save data that would
otherwise just be volatile.
When you use services (e.g. repairs,
maintenance), the operating data
saved can be read together with the
vehicle identification number and
used where necessary. Staff working
for the service network ( e.g. garages,
manufacturers) or third parties (e.g.breakdown services) can read the
data from the vehicle. The same
applies to warranty work and quality
assurance measures.
Data is generally read via the OBD
(On-Board Diagnostics) port
prescribed by law in the vehicle. The operating data read documents the
technical condition of the vehicle or
individual components and assists
with fault diagnosis, compliance with
warranty obligations and quality
improvement. This data, in particular
information on component stress,
technical events, operator errors and
other faults, is transmitted to the
manufacturer where appropriate,
together with the vehicle identification number. The manufacturer is also
subject to product liability. The
manufacturer potentially also uses
operating data from vehicles for
product recalls. This data can also be
used to check customer warranty and
guarantee claims.
Fault memories in the vehicle can be
reset by a service company when
carrying out servicing or repairs or at
your request.

269Collision damage repair..............260
Control indicators.......................... 91
Control of the vehicle .................134
Controls ........................................ 78
Convex shape .............................. 36
Coolant and antifreeze ...............242
Cruise control ...................... 98, 156
Cupholders .................................. 67
Curtain airbag system .................. 58
Curve lighting.............................. 114
D
Danger, Warnings and Cautions ...4
Daytime running lights ...............114
Declaration of conformity ............257
DEF ............................................ 143
Deflation detection system ...........96
Diesel exhaust fluid ....................143
Diesel fuel system bleeding .......207
Door open .................................... 99
Doors ............................................ 29
Driver alert .................................. 190
Driver assistance systems ..........156
Driver Information Centre .............99
Driving characteristics and towing tips .............................. 195
Driving hints ................................ 134
E
Electric adjustment ......................36
Electrical system......................... 214Electric parking brake ...........94, 150
Electric parking brake fault ...........94
Electronic climate control system 126
Electronic driving programmes ..148
Electronic key system ...................22
Electronic Stability Control and Traction Control system ....95, 153
End-of-life vehicle recovery .......202
Engine compartment fuse box ...215
Engine coolant ........................... 204
Engine coolant temperature ........95
Engine coolant temperature gauge ....................................... 90
Engine data ............................... 249
Engine exhaust .......................... 142
Engine identification ...................245
Engine oil ................... 203, 242, 246
Engine oil level monitor ................90
Engine oil pressure ......................96
Entry lighting .............................. 120
Event data recorders ..................263
Exhaust filter ......................... 96, 142
Exit lighting ................................ 121
Exterior care .............................. 235
Exterior light ................................. 97
Exterior lighting ....................12, 112
Exterior mirrors ............................. 36F
Fault ........................................... 148
First aid ......................................... 74
First aid kit ................................... 74
Fixed air vents ........................... 131
Folding mirrors ............................. 37
Forward collision alert................. 168
Front airbag system .....................57
Front fog lights .............98, 118, 209
Front pedestrian protection ........173
Front seats.................................... 44
Fuel............................................. 192
Fuel for diesel engines ..............192
Fuel for petrol engines ...............192
Fuel gauge ................................... 90
Fuses ......................................... 214
G
Gauges ......................................... 89
Gear shifting ................................. 95
General information ...................195
Glass panel .................................. 42
Glovebox ..................................... 67
Glovebox cooler ......................... 131
H Halogen headlights ....................208
Hazard warning flashers ............117
Headlight flash ........................... 113
Headlight range adjustment ......114
Headlights................................... 112