coolant temperature MERCEDES-BENZ B-CLASS HATCHBACK 2008 Owners Manual

5
Central unlocking
Key................................................... 60
Centre console
Lower section. .................................. 32
Upper section. .................................. 31
Changing a wheel
see Flat tyre
Child-proof locks
Rear doors. ....................................... 54
Children
Fastening seat belts.......................... 51
In the vehicle. ................................... 42
Restraint systems. ............................ 43
Child seat
Automatic recognition ......................45
Automatic recognition (malfunc-
tion). ............................................... 223
Integrated ......................................... 50
ISOFIX............................................... 48
Recommendations. ...........................47
Suitable positions. ............................ 46
Cigarette lighter................................. 162
Cleaning the windscreen ..................194
Cockpit Overview. .......................................... 22
COMAND............................................. 100
On-board computer. .......................100
see separate operating instructions
Constant headlamp mode
Setting (on-board computer).......... .108 Consumption statistics (on-board
computer)...........................................
111
Convenience closing ............................85
Convenience opening ........................... 84
Coolant ................................................ 175
Checking the level. .........................175
Display message ............213, 214, 215
Mixture ratio ................................... 297
Temperature gauge ...........................97
Cornering lights
Display message ............................. 216
Cruise control..................................... 114
Cup holder.......................................... 143 D
Dashboard see Instrument cluster
Date
Setting (on-board computer).......... .108
Daytime driving lights
see Constant headlamp mode
Delayed switch-off
Exterior lighting (on-board com-
puter). ............................................. 109
Interior lighting (on-board com-
puter). ............................................. 109
Diesel
Low outside temperatures. .............170Diesel engine
Winter driving. ................................ 170
Digital speedometer.......................... 102
Dipped-beam headlamps Display message ............................. 216
Symmetrical. .................................. 185
Display message................................ 202
Display messages Service interval display. ..................191
Symbol messages. ..........................212
Text messages. ............................... 203
Distance recorder
see Total distance recorder
see Trip meter
Door
Automatic locking ............................. 61
Display message ............................. 212
Emergency locking .........................242
Emergency unlocking...................... 241
Opening (from the inside). ................61
Door control panel
Overview. .......................................... 34
Drinks holder
see Cup holder
Driver's airbag...................................... 40
Driver's seat position........................... 75
Driving abroad.................................... 185
Driving information Fording .......................................... 185 Index
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12Boxes under the driver's seat/
front-passenger seat....................... 159
Centre console. .............................. 159
Glove compartment. .......................158
Luggage compartment. ...................160
Stowage compartments
Cup holder ...................................... 143
Rear. ............................................... 160
Submenu (on-board computer)......... 106
Convenience ................................... 107
Instrument cluster .......................... 106
Lighting........................................... 107
Time/date. ..................................... 106
Vehicle............................................ 107
Summer opening
see Convenience opening
Sun visor............................................. 161
Supplemental Restraint System see SRS
Surround lighting
Switching on/off (on-board com-
puter). ............................................. 109
Switching off the alarm
ATA. .................................................. 57 T
Tailgate Display message ............................. 212
Opening/closing. .............................. 62
Tail lamp
Display message ............................. 219
Tail lamps
changing. ........................................ 249
Display message ............................. 219
Tank
see Fuel tank
Tank capacity ..................................... 291
Technical data Acceleration. .................................. 280
Engine............................................ .278
Speed. ............................................ 280
Trailer loads .................................... 290
Tyres. .............................................. 283
Vehicle dimensions. ........................286
Vehicle weights............................... 286
Wheels. ........................................... 283
Telephone
see Mobile phone
Telephone compartment ...................159
Temperature Coolant. ............................................ 97
Outside temperature......................... 98
Thermotronic
Malfunction indicator lamp. ............222Third brake lamp
Display message ............................. 218
Through-loading ................................. 147
Tightening torque............................... 261
Time Setting (on-board computer).......... .108
Setting the time (on-board com-
puter). ............................................. 108
TIREFIT kit
Using. ............................................. 253
TopTether .............................................. 49
Total distance recorder................. 26, 99
Tow-away protection........................... 58
Towing................................................. 269
Towing eye Fitting ............................................. 268
Removing....................................... .270
Tow-starting ........................................ 269
Trailer 7-pin connector .............................. 191
Display message..................... 216, 217
Power supply. ................................. 190
Trailer loads
Technical data. ............................... 290
Trailer tow hitch
Notes on care ................................. 196
Trailer towing
Active parking assist .......................126
Driving tips ..................................... 188
Malfunction..................................... 240 Index
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Instrument cluster
27Function Page
1
LIM indicator lamp* 114
2
ESP
®
(Electronic Stability
Program) warning lamp 226
3
Speedometer
4
Turn signal indicator lamp 78
5
Multi-function display,
upper section
99
6
Trip distance 97
7
Total distance 102
8
Turn signal indicator lamp 78
9
ABS (anti-lock braking sys-
tem) warning lamp
224
a
Diesel engine: preglow indi-
cator lamp
87
b
Rev counter
97 Function Page
c
SRS (Supplemental
Restraint System) warning
lamp
226
d
Engine diagnostics warning
lamp
227
e
Reserve fuel warning lamp 229
f
Fuel filler cap location: the
fuel filter cap is to the rear
on the right
g
Fuel gauge
h
Main-beam indicator lamp 78
j
Dipped-beam indicator
lamp
77
k
Seat belt warning lamp
228 Function Page
l
Clock 98
Speedtronic*: stored limit
speed
116
m
Depending on the setting in
the on-board computer:
107
• Outside temperature
1 • Digital speedometer
n
Rear window wiper
switched on
82
o
Multi-function display,
lower section
99
p
AUTOTRONIC*: drive pro-
gram display
92
q
AUTOTRONIC*: selector
lever position display
93
r
Brake system warning lamp 226
s
Reset button 97
t
Coolant temperature gauge 97
1
Vehicles for United Kingdom: the speed in km/h is always shown instead of the outside temperature. At a glance
* optional
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Instrument cluster
29Function Page
1
LIM indicator lamp* 114
2
ESP
®
warning lamp 226
3
Speedometer
4
Turn signal indicator lamp 78
5
Multi-function display,
upper section
99
6
Trip distance 97
7
Total distance 102
8
Turn signal indicator lamp 78
9
ABS warning lamp 224
a
Diesel engine: preglow indi-
cator lamp
87
b
Rev counter 97
c
SRS warning lamp
226 Function Page
d
Engine diagnostics warning
lamp
227
e
Reserve fuel warning lamp 229
f
Fuel filler cap location: the
fuel filter cap is to the rear
on the right
g
Fuel gauge
h
Main-beam indicator lamp 78
j
Dipped-beam indicator
lamp
77
k
Seat belt warning lamp 228
l
Clock 98
Speedtronic*: stored limit
speed
116 Function Page
m
Depending on the setting in
the on-board computer:
107
• Outside temperature
2 • Digital speedometer
n
Rear window wiper
switched on
82
o
Multi-function display,
lower section
99
p
AUTOTRONIC*: drive pro-
gram display
92
q
AUTOTRONIC*: selector
lever position display
93
r
Brake system warning lamp 226
s
Reset button 97
t
Coolant temperature gauge 97
2
Vehicles for United Kingdom: the speed in km/h is always shown instead of the outside temperature. At a glance
* optional
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Instrument cluster
97Activating the multi-function display
X Switch on the ignition. The multi-function display is also activated
when you:
R switch on the lights
R press reset button 1
R open the driver's door Adjusting the instrument cluster
lighting
X Brighter or dimmer: briefly turn reset but-
ton 1clockwise or anti-clockwise to the
stop and release.
The brightness of the instrument cluster
lighting changes by one level. There are
several possible levels. Coolant temperature gauge
The coolant temperature gauge is in the
instrument cluster on the left-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 120 †. The coolant tem-
perature may rise to the top end of the scale
at high outside temperatures and on long
uphill stretches. Resetting the trip meter
X Select the Standard display menu
(Y page 102).
X Press and hold the reset button on the left-
hand side of the instrument cluster until the
trip meter is reset. Rev counter
The red band in the rev counter indicates the
engine's overrevving range. The fuel supply is
interrupted to protect the engine when the
red band is reached.
! Do not drive in the overrevving range.
Doing so will damage the engine. H
Environmental note
Avoid driving at high engine speeds, as this
increases your vehicle's consumption
unnecessarily and pollutes the environ-
ment through increased emissions. Controls
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Engine compartment
175H
Environmental note
When topping up the oil, take care not to
spill any. Oil must not be allowed to escape
into the soil or waterways. You would oth-
erwise be damaging the environment.
For further information on engine oil
(Y page 295). Coolant
G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew the cap once the engine
has cooled down. The coolant temperature
gauge must display less than 70 °C. You
could otherwise be scalded by escaping hot
coolant.
Coolant consists of water and antifreeze/cor-
rosion inhibitor. Only check the coolant level
when the vehicle is on a level surface and the
engine has cooled down. Checking the coolant level The coolant expansion tank is located in the
engine compartment on the right when
viewed in the direction of travel.
1
Cap
2 Coolant expansion tank
3 Marker bar
X Slowly turn cap 1half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap 1further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank 2if the coolant is level with marker
bar 3in the filler neck when cold or
approximately 1.5 cm higher when hot. X
Top up the coolant if necessary.
X Replace cap 1and tighten all the way to
the stop.
For further information on coolant see
(Y page 297) . Windscreen washer system/head-
lamp cleaning system*
The washer fluid reservoir is located in the
engine compartment on the left-hand side of
the vehicle when viewed in the direction of
travel. The headlamp cleaning system is also
supplied from the washer fluid reservoir. 1
Cap
X Add windscreen washer concentrate to the
washer fluid all year round. Operation
* optional
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Display
messages 212 Symbol messages
G
Risk of accident and injury
The operating safety of your vehicle could be compromised if service work is carried out improperly. You could lose control of the vehicle,
thereby causing an accident. Safety systems may also not be able to protect you or others as intended.
Always have maintenance work carried out at a qualified specialist workshop which has the necessary specialist knowledge and tools to
carry out the work required.
Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this purpose.
In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop. Display messages Possible cause/consequence Possible solution
< G
Risk of injury
If the symbol appears in the multi-function
display, a seat belt buckle has been
released on a rear seat during the journey. X
Ask occupants in the rear to fasten their seat
belts.
Further information on the status indicator for the
rear seat belts* (Y page 74). 1 The tailgate is open. X
Close the tailgate. 2 At least one door is open. X
Close the doors. ± Some electronic systems are unable to
send information to the on-board com-
puter. The following functions may be mal-
functioning:
R coolant temperature display
R rev counter
R cruise control *or Speedtronic* display X
Visit a qualified specialist workshop. Practical advice
* optional
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Display
messages 213Display messages Possible cause/consequence Possible solution
D The engine fan is faulty. X
If the coolant temperature is less than 120 †,
you can continue driving to the nearest quali-
fied specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g.
driving in mountainous terrain, and stop-and-
go driving. # The battery is not being charged. One (or
more) of the following could be the cause:
R
a faulty alternator
R a torn poly-V-belt
R a malfunction in the electronics X
Stop immediately and safely when traffic con-
ditions permit and switch off the engine.
X Check the poly-V-belt.
X If the poly-V-belt is torn: do not continue
driving. Consult a qualified specialist work-
shop.
X If the poly-V-belt is not damaged: have the
vehicle checked immediately at a qualified spe-
cialist workshop. The on-board voltage is too high. X
Have the alternator checked at a qualified spe-
cialist workshop. 2 Brake wear The brake pads/linings have reached
their wear limit. X
Visit a qualified specialist workshop. Practical advi
ce
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Display
messages 214 Display messages Possible cause/consequence Possible solution
3 Check brake fluid
level
G
Risk of accident
There is insufficient brake fluid in the
brake fluid reservoir. X
Pull over and stop the vehicle safely, paying
attention to road and traffic conditions. Do not
continue driving under any circumstances.
X Consult a qualified specialist workshop.
X Do not top up the brake fluid. This will not rec-
tify the fault. ! Release parking
brake You are driving with the parking brake
applied. X
Release the parking brake. [ Clean fuel filter There is water in the fuel filter. The water
must be drained off
27
. X
Visit a qualified specialist workshop. D Coolant Stop car,
turn eng. off The coolant is too hot. X
Pull over and stop the vehicle safely and switch
off the engine, paying attention to road and
traffic conditions.
X Make sure, that the air supply to the radiator
is not blocked, e.g. by slush.
X Restart the engine only when the display mes-
sage disappears. Otherwise, there is a risk of
engine damage.
X Pay attention to the coolant temperature dis-
play.
X If the temperature increases again, visit a quali-
fied specialist workshop immediately. 27
Only for certain countries. Practical advi
ce
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Troubleshooting
234 Problem Possible cause/consequence Suggested solutions
Vehicles with a petrol engine:
The engine is not running
smoothly and is misfiring. There is a malfunction in the
engine electronics or a mechani-
cal component of the engine con-
trol unit. X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist work-
shop.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it. A coolant temperature of over
120 °C is displayed. The coolant
warning lamp may also be on and
a warning tone may sound
(Y
page 97). The coolant level is too low. The
coolant is too hot and the engine
is no longer being cooled suffi-
ciently. X
Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 175). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct, the
radiator fan may be faulty. The
coolant is too hot and the engine
is no longer being cooled suffi-
ciently. X
If the coolant temperature is less than 120 °C, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop/start driving. Practical advice
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