Page 137 of 153

11-5Service and maintenance
Additional servicing
Additional operations ⊕
Additional work is work that is not
required every service but can be
performed in conjunction with a
regular service.
Time allowances for such work are
not included in the scope of regular
services and will be charged for
additionally. It is more economic if
these operations are performed as
part of a scheduled service than
having them performed separately.
Severe operating conditions o
Operating conditions are classified as
severe when one or more of the
following occurs frequently:
„cold starts,
„stop and go,
„trailer/caravan towing,
„gradients and/or high altitudes,
„poor road surfaces,
„sand and dust,
„extreme temperature fluctuations. Police vehicles, taxis and driving
school vehicles are also classified as
operating under severe conditions.
Under severe operating conditions, it
may be necessary to have certain
scheduled service work done more
frequently than the scheduled
intervals.
For example, if fuel is used that does
not comply with required standards,
the fuel filter may need more frequent
draining or replacement and it may
also be necessary to change other
components more often (e.g. spark
plugs).
It is recommended to seek technical
advice on the servicing requirements
dependent on the specific operating
conditions of your vehicle.
Recommended fluids
and lubricants
Only use products that have been
tested and approved. Damage
resulting from the use of non-
approved materials will not be
covered by the warranty.
Checking and topping up fluids
3 10-3.
9 Warning
Operating materials are
hazardous and must be handled
with the appropriate level of care.
If consumed, seek medical
attention immediately. Do not
inhale fumes and avoid skin
contact. Keep out of reach of
children. Do not allow operating
materials to contaminate the
sewage system, surface water,
ground water or soil. Dispose of
empty containers properly.
Always bear in mind that
operating materials are
hazardous to your health.
Page 139 of 153

11-7Service and maintenance
The system is factory-filled with
coolant designed for frost protection
down to approx. -28 °C. This
concentration should be maintained
all year-round.
Coolant additives intended to give
additional corrosion protection or seal
against minor leaks can cause
function problems. Liability for
consequences resulting from the use
of coolant additives will be rejected.
Brake and clutch fluid
Only use DOT4 brake fluid.
Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified
interval.
Brake fluid should be stored in a
sealed container to avoid water
absorption. Ensure it does not become
contaminated with fluids containing
mineral oil (oil, petrol, cleaner) as this
can damage the seals and sleeves of
the brake system.Transmission fluid
Use fluid meeting specification
Grade: API GL-4
Viscosity: 75W-85 or 75W-90.
Automatic transmission fluid
Use fluid meeting specification
ATF3309.
9 Warning
Brake fluid is poisonous!
Caution
Due to its corrosive nature, it must
not come in contact with the
paintwork. Flush any escaped
brake fluid with plenty of water.
Page 152 of 153

13-5 Index
Central locking system .... 2-1, 2-3
RDS (Radio Data System) ......... 7-7
Rear fog lamp
............................ 6-3
Bulb replacement
................. 10-9
Rear lamps
Bulb replacement
................. 10-9
Rear seats
................................. 3-3
Folding seatbacks .................. 3-3
Restoring rear seatbacks
....... 3-5
Rear window
washer system
.................. 5-3, 10-5
Antifreeze protection
............ 10-5
Capacities
............................ 12-5
Washer fluid reservoir .......... 10-5
Rear window wiper
........... 5-3, 10-6
Refuelling
................................. 9-12
Fuel filler cap ........................ 9-12
Remote control
Central locking system
.... 2-1, 2-3
Replacement keys ..................... 2-1
Reversing lamps
........................ 6-3
Bulb replacement
................. 10-9
Ride control systems ............... 9-10
Roof rack
............................ 4-4, 4-6
Running-in
................................. 9-1
Brakes .................................... 9-9
S
Safeguard against
unauthorised use
................ 7-3, 9-1Safety
...................................... 10-1
Safety accessories ............. 3-9, 4-5
Safety locks
............................... 2-4
Seat adjustment
......................... 3-2
Seat belt reminder ..................... 5-9
Seat belts
........................ 3-5, 10-29
Driver’s seat belt reminder
3-7, 5-9
Height adjustment .................. 3-8
Seat height adjustment
.............. 3-3
Seat position
.............................. 3-2
Seats ......................................... 3-2
Adjustment
............................. 3-2
Selector lever
............................. 9-4
Self-help
Automatic transmission
.......... 9-5
Remote control
....................... 2-2
Service ..................................... 11-1
Service interval display
............ 5-14
Service intervals
............. 11-1, 11-2
Additional operations ............ 11-5
Interim service
...................... 11-1
Main service
......................... 11-1
Severe operating conditions .11-5
Side airbags
............................. 3-15
Sidemarker lamps
Bulb replacement
............... 10-10
Spare keys
................................. 2-1
Spare wheel
........................... 10-24
Speedometer ............................. 5-5Starting the engine
.................... 9-2
Steam-jet cleaners ...... 10-30, 10-31
Steering column lock
................. 9-1
Steering wheel adjustment
........ 5-1
Steering wheel
remote control
..................... 5-1, 7-2
Storage compartments
.............. 4-1
Sun visors ................................ 2-11
Sunglasses storage
compartment
.............................. 4-3
T
Tachometer
............................... 5-6
Tail lamps
Bulb replacement
................. 10-9
Tailgate
...................................... 2-5
Tank
Fuel gauge
............................. 5-7
Technical data
......................... 12-1
Telephone, see
Mobile telephones
................... 7-10
Temperature
.............................. 8-1
Temporary spare wheel
......... 10-24
The first 1000 km ....................... 9-1
Tightening torque
................... 10-24
Tools
...................................... 10-25
Top-Tether ............................... 3-11
Towing
........................ 10-28, 10-29
Traction Control Support
System (TCSS)
........................ 9-11