Inspecting and replenishing
164
Oil level within range
–You must top up the oil. It is sufficient, once th is is done, to keep the oil level within
range .
It is normal for the engine to consume oil. The oil consumption may be as much as 0.5
l/1 000 km depending on your style of driving and the conditions under which you
operate your vehicle. The oil consumption may be slightly hi gher than this during the
first 5 000 kilometres.
One should therefore check the oil level at regular intervals, preferably every time after
the fuel tank is filled or after driving for long stretches.
We recommend maintaining the oil level within the range if the engine has been
operating at high loads, for example duri ng a lengthy motorway trip during the
summer months, towing a trailer or negotiating a high mountain pass, but not above
this .
The warning light in the instrument cluster* will indicate page 28 whether the oil
level is too low. In this case, check the oil level as soon as possible. Top up with an
appropriate quantity of oil.
WARNING
Read and observe the warning notes page 162, “Working in the engine
compartment” before working in the engine compartment.
Caution
The oil level must on no account extend beyond the range . Danger of damaging
the catalytic converter.
Do not continue your journey if for some reason it is not possible under the
conditions prevailing to top up with oil. Switch the engine off and obtain professional
assistance from a specialist garage, otherwise it could lead to severe engine damage.
Replenishing engine oil– Inspect the oil level page 163.
– Unscrew the cap of the engine oil filler opening. – Wipe off the oil from the sealing surface of the cover and on the counterpart using
a clean cloth.
– Pour in a suitable grade of oi l in portions of 0.5 litres page 208.
– Inspect the oil level page 163.
– Carefully screw on the cap of the filler opening and push the dipstick in fully.
WARNING
Avoid dripping oil onto hot parts of the engine when topping up will oil - a
risk of fire!
Read and observe the warning notes page 162, “Working in the engine
compartment” before working in the engine compartment.For the sake of the environment
The oil level must on no account be above the range page 163. Oil will otherwise
be drawn in through the cr ankcase ventilation and may pass through the exhaust
system to atmosphere. The oil may combust in the catalytic converter and damage it.Changing engine oilThe engine oil must be changed at the intervals stated in the Service schedule or
according to the service interval indicator page 17.
WARNING
Only carry out the engine oil change, if you have the required professional
knowledge!
Read and observe the warning notes page 162, “Working in the engine
compartment” before working in the engine compartment.
First of all, let the engine cool down, we ar an eye protection and gloves - risk
of caustic burns due to hot oil.
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Inspecting and replenishing
166
Inspecting the coolant levelThe coolant expansion bottle is located in the engine compartment on the right.
– Switch the engine off.
– Open the bonnet in “Working in the engine compartment” on page 162.
– Check the level of coolant in the coolant expansion bottle fig. 138 . The coolant
level when the engine is cold must lie between the “MIN” and “MAX” mark-
ings. The level may also rise slightly above the “MAX” marking when the engine is
warm.
If the coolant level in the reservoir is too lo w, this is indicated by the warning light in
the instrument cluster
page 28. We nevertheless recommend inspecting the
coolant level directly at the reservoir from time to time.
Loss of coolant
A loss of coolant is first and foremost an indication of a leak in the system. You should
not merely top up the coolant in the reservoir. It is also important to have the cooling
system inspected without delay by a specialist garage.
Losses can only occur through the pressure relief in the cap of the coolant expansion
bottle which is completely free of leaks if the coolant boils as a result of overheating
and is forced out of the cooling system.
WARNING
Read and observe the warning notes page 162, “Working in the engine
compartment” before working in the engine compartment.
Caution
One should contact a specialist garage as s oon as possible if the source of overheating
itself cannot be determined and removed, since there may be grave damage to the
engine.Replenishing the coolant– Switch the engine off.
– Allow the engine to cool down.
– Place a cloth over the cap of the coolant expansion reservoir fig. 138 and
unscrew the cap carefully by turning it to the left .
–Top up the coolant.
– Screw the cap tight until it is heard to lock.
The coolant which you use for replenishing the system, must comply with one specific
specification page 165, “Coolant”. Do not use an al ternative additive if the coolant
additive G12 PLUS - PLUS is not available in exceptional cases. Just top up the system
with water and as soon as possible arrange adjustment to correct the mixing ratio of
water and coolant additive again by a specialist garage.
Only use fresh coolant for topping up the system.
Do not fill up over the “MAX” marking! Excess coolant which is heated up is forced out
of the cooling system through the pressure relief valve in the cap of the coolant
compensation bottle.
Wait until the engine has cooled down for a system which has suffered a major loss of
coolant before pouring in coolant. This is necessary to avoid engine damage.
WARNING
The cooling system is pressurized! Do not open the cap of the coolant
expansion bottle if the engine is still hot - risk of scalding!
The coolant additive and thus all of the coolant is harmful to your health.
Avoid contact with the coolant. Coolant vapours are also harmful to the health.
It is important, therefore, to always safely store any coolant additive in its orig-
inal container out of the reach of children - risk of poisoning!
Fig. 138 Engine compartment: Coolant
expansion bottle
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Breakdown assistance183
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Praktik
Technical Data
Changing a wheelPreliminary workThe following steps should be carried ou t before actually changing the wheel.
– If it is necessary to change a wheel, park the vehicle as far away as possible from
the traffic flow. The place you choose should be level.
– Have all the occupants get out. While changing a wheel, the occupants of the
vehicle should not stand on the road (e.g. behind a crash barrier).
– Apply the handbrake firmly.
–Engage 1st gear or if your vehicle is fitted with an automatic gearbox, position the
selector lever into position P .
– If a trailer is coupled, uncouple it.
– Take the vehicle tool kit and the spare wheel page 181 out of the luggage
compartment.
WARNING
If you find yourself in flowing traffic switch on the hazard warning lights
system and place the warning triangle on the side of the road at the prescribed
distance from your vehicle while observing all national legal provisions. In this
way you are protecting not only yourself but also other road users.
Never start the engine with the vehicle si tting on the raised jack - danger of
suffering injury.Caution
If you have to change a wheel on a slope first block the opposite wheel with a stone or
similar object in order to secure the vehicle from unexpectedly rolling away.
Note
Comply with the national legal regulations.
Always change a wheel on a level surface as far as possible.
– Take off the full wheel trim* page 184 or the caps page 184.
– Slacken the wheel bolts page 185.
– Jack up the vehicle until the wheel to be changed is clear of the ground
page 185.
– Unscrew the wheel bolts and place them on a clean surface (cloth, paper etc.).
– Take off the wheel.
– Fit on the spare wheel* and tighten the wheel bolts slightly.
– Lower the car.
– Tighten the wheel bolts firmly, alternatel y and diagonally using the wrench (cross-
wise) page 185.
– Mount the full wheel trim/wheel trim cap or the caps.
Note
All bolts must be clean and must turn easily.
You must never grease or oil the wheel bolts!
When fitting on unidirectiona l tyres, ensure that the tyres rotate in the correct
direction page 173.
Subsequent stepsAfter changing the wheel, you mu st perform the following steps.
– Stow the vehicle tool kit in the space provided.
– Stow the replaced wheel in the luggage compartment.
– Check the tyre pressure on the spare wheel just mounted as soon as possible.
– Have the tightening torque of the wheel bolts checked with a torque wrench as
soon as possible. Steel and light alloy wheels must be tightened to a tightening
torque of 120 Nm.
s16g.4.book Page 183 Wednesda y, February 10, 2010 3:53 PM
Breakdown assistance
186
Not positioning the lifting jack at the specified points can result in damage
to the vehicle. The jack can also slip off if it does not have sufficient grip - risk of
injury!
Never start the engine if the vehicle is lifted - risk of accident.
Never lie under the vehicle if the vehicle is only lifted with the vehicle lifting
jack.
It is important to support the vehicle with suitable supporting blocks if you
wish to work under the lifted vehicle - risk of injury!
Securing wheels against being stolen*
You need a special adapter for sl ackening the safety wheel bolts.– Pull off the full wheel trim/cap from the wheel hub or cap from the safety wheel
bolt.
– Insert the adapter with its toothed side fully into the inner toothing of the safety wheel bolt right down in such a way th at only the outer hexagon is jutting out
fig. 152 .
– Insert the wheel wrench fully onto the adapter .
– Slacken the wheel bolt, or tighten it firmly page 185.
– Reinstall the full wheel trim/wheel cap afte r removing the adapter or place the cap
onto the safety wheel bolt. – Have the
tightening torque checked with a torque wrench as soon as possible.
Steel and light alloy wheels must be tightened to a tightening torque of 120 Nm.
The safety wheel bolts on vehicles fitted with them (one safety wheel bolt per wheel)
can only be loosened or tighten up by using the adapter provided.
It is meaningful to note th e code number hammered into the rear side of the adapter
or the rear side of the safety wheel bolts. You can purchase a replacement adapter from
a specialist garage, if necessary, by quoting this number.
We recommend that you always carry the ad apter for the wheel bolts with you in the
vehicle. It should be stow ed in the vehicle tool kit.
Caution
Damage can occur to the adapter and safety wheel bolt if the safety wheel bolt is
tightened up too much.
On steel wheels, the theft-deterrent wheel bolt must always be installed in the
hole, which is close to the valve. Otherwise the full wheel trim cannot be mounted and
the full wheel trim can be damaged during the assembly.Note
The set of safety wheel bolts can be obtained from a specialist garage.Jump-startingInitial stepsYou can use the battery of another vehicle fo r jump-starting yours if the engine does
not start because the battery on your vehicle is flat. You will require jump-start cables
for this purpose.
Both batteries must have a rated voltage of 12 V. The capacity (Ah) of the battery
supplying the power must not be significantly less than the capacity of the discharged
battery in your vehicle.
WARNING (continued)
Fig. 152 Safety wheel bolt with adapter
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s16g.4.book Page 186 Wednesda y, February 10, 2010 3:53 PM
Index221
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Praktik
Technical Data
Index
AAbroad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Adjusting seats . . . . . . . . . . . . . . . . . . . . . . . 57, 61, 110
Adjusting the seat backrest . . . . . . . . . . . . . . . . . . . . 60
Adjusting the steering wheel . . . . . . . . . . . . . . . . . . . 87
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . 81
Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Front airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Head airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Side airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Alternator Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Antilock brake system . . . . . . . . . . . . . . . . . . . . . . . . 136
Antilock brake system (ABS) Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Anti-theft alarm system . . . . . . . . . . . . . . . . . . . . . . . 41
Ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Auto Check Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Auto Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Automatic gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Emergency programme . . . . . . . . . . . . . . . . . . . . 98
Kickdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Selector lever-emergency unlocking . . . . . . . . 98
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Automatic vehicle wash systems . . . . . . . . . . . . . . 151
Automatic wiper/washer system . . . . . . . . . . . . . . . 53
AUX-IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Avoiding damage to your vehicle . . . . . . . . . . . . . . 146
BBattery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27, 168 change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Inspecting the electrolyte level . . . . . . . . . . . . . 170
Operation in winter . . . . . . . . . . . . . . . . . . . . . . . 171
Before setting off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Belt tensioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Bicycle holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14, 161
Boot lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Brake Handbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Brake booster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 Brake system
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Button on the driver's door Central locking system . . . . . . . . . . . . . . . . . . . . . 38
Electrical power windows . . . . . . . . . . . . . . . . . . 43
CCar state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Central locking system . . . . . . . . . . . . . . . . . . . . . . . . . 36lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
unlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Changing wheels around . . . . . . . . . . . . . . . . . . . . 175
Charging the battery . . . . . . . . . . . . . . . . . . . . . . . . . 171 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Check engine oil level . . . . . . . . . . . . . . . . . . . . . . . 163
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Side airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Child safety lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Child safety seat on the front passenger seat . . . . . . . . . . . . . . . 127
Safety information . . . . . . . . . . . . . . . . . . . . . . . 126
Child seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Classification into groups . . . . . . . . . . . . . . . . . 128
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
s16g.4.book Page 221 Wednesda y, February 10, 2010 3:53 PM
Index
222
Children and safety . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Chrome parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Climatronic
Defrosting windows . . . . . . . . . . . . . . . . . . . . . . . . 86
Setting temperature . . . . . . . . . . . . . . . . . . . . . . . . 86
Climatronic (automat ic air conditioning) . . . . . . . . 84
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Clothes hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Cockpit General view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compartments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Convenience operation . . . . . . . . . . . . . . . . . . . . . . . . 44
Converting/masking over headlights . . . . . . . . . . 146
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 replenishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Coolant level Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Coolant quantity Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Coolant temperature gauge . . . . . . . . . . . . . . . . . . . . 16
Coolant temperature/coolant level Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Cornering light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Correct seated position . . . . . . . . . . . . . . . . . . . . . . 110
Counter for distance driven . . . . . . . . . . . . . . . . . . . . 17
Cruise control system . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Cup holder
front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
DDash panel insert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Daylight driving lights . . . . . . . . . . . . . . . . . . . . . 46, 198
Deactivating an airbag . . . . . . . . . . . . . . . . . . . . . . . 124
Defrosting rear window . . . . . . . . . . . . . . . . . . . . . . . 52
De-icing the windows . . . . . . . . . . . . . . . . . . . . . . . . 153
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Diesel enginesStarting the engine . . . . . . . . . . . . . . . . . . . . . . . . 89
Diesel particle filter . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Direction indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Distance driven . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Door Child safety lock . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Door, luggage compartment door and bonnet ajar warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Driving economically . . . . . . . . . . . . . . . . . . . . . . . . 142
Driving time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20EEDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Electrical power windows . . . . . . . . . . . . . . . . . . . . . 43
Electrically adjustable rear mirror . . . . . . . . . . . . . . 55
Electronic Differential Lock . . . . . . . . . . . . . . . . . . . 134
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Electronic Differential Lock (EDL) . . . . . . . . . . . . . 134
Electronic immobiliser . . . . . . . . . . . . . . . . . . . . . . . . 35
Electronic stability programme (ESP) . . . . . . . . . . 133 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Emergency locking of the door . . . . . . . . . . . . . . . . . 38
Engine starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Engine compartment Safety information . . . . . . . . . . . . . . . . . . . . . . . . 162
Engine electronics Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
replenishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Engine revolutions counter . . . . . . . . . . . . . . . . . . . . 15
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Environmental compatibility . . . . . . . . . . . . . 142, 145
ESP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Exhaust gas Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Exhaust gas inspection Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Explanations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Exterior mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
s16g.4.book Page 222 Wednesda y, February 10, 2010 3:53 PM