2008 MERCEDES-BENZ CLS COUPE low oil pressure

On-board computer
116
Instead of outside temperature
1, you can
opt to display the digital speedome-
ter 14
(Y page 124).
You can select the following functions in the
Basic display menu by pressing the j or
k button:
R digital speedometer 15
R ASSYST PLUS service display
(Y page 209)
R outside temperature 15
R tyre pressure loss warning system
(Y page 201) or tyre pressure moni-
tor* (Y page 202)
Displaying the digital speedometer or
outside temperature You can use the
Basic display submenu
(Y page 124) to select whether the first func-
tion listed in the Basic display menu is the
digital speedometer or the outside tempera-
ture.
X Press the j or k button to select the
digital speedometer or the outside temper-
ature. Example illustration showing the digital speedom-
eter displayed
1
Digital speedometer
2 Status line with outside temperature
3 Trip meter AMG* menu
These functions are only available on AMG
vehicles.
i Menu overview: see ( Y page 114).
Use the buttons on the multi-function steer-
ing wheel.
X Press the è or · button to select the
AMG menu. 1
Gear indicator
2 Upshift instruction
3 Engine oil temperature
In the manual gearshift program, the menu is
displayed in red when the engine reaches the
overrevving range. You will also see shift up
instruction 2. The shift up instruction is the
only thing shown in the multi-function display
until you shift gear.
The engine oil temperature gauge flashes if
the engine oil temperature has not reached
80 †. Avoid driving at full engine output dur-
ing this time.
Displaying the on-board voltage X
Press the j button repeatedly until the
on-board voltage appears.
14 Vehicles for the United Kingdom: the outside temperature is always displayed.
15 The sequence of the digital speedometer and the outside temperature display depends on the settings in the "Basic display" submenu. Controls
* optional
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Refuelling
190 Running-in notes
The first 1,500 km
If you treat the engine with sufficient care
from the very start, it will reward you with
excellent performance for a very long period
afterwards.
R You should therefore drive at varying road
and engine speeds for the first 1,500 km
.
R Avoid heavy loads, e.g. driving at full throt-
tle, during this time. Do not exceed 2
/ 3 of
the maximum permissible engine speed for
each gear.
R Change gear in good time.
R Do not shift down a gear manually in order
to brake.
R Try to avoid depressing the accelerator
pedal beyond the pressure point (kick-
down).
R Only use ranges 3, 2 or 1 for slow driving,
e.g. in mountainous terrain.
After 1,500 km you may gradually bring the
vehicle up to full road and engine speeds.
Additional driving tips for AMG vehicles: R
Do not drive faster than
140 km/h for the
first 1,500 km.
R Only bring the engine up to a maximum
speed of 4,500 rpm for a brief period.
i You should also observe these notes if the
engine or rear axle transmission on your
vehicle has been replaced. AMG vehicles with a rear axle differ-
ential lock*
Your vehicle is equipped with a self-locking
differential

on the rear axle. To better protect
the differential gear on the rear axle, you
should perform an oil change after a running-
in phase of 3,000 km. This oil change will
increase the service life of your differential.
Have the oil change performed at a qualified
specialist workshop. Mercedes-Benz recom-
mends that you use a Mercedes-Benz Service
Centre for this purpose. Refuelling
Refuelling
G
Risk of explosion
Fuel is highly flammable. Fire, naked flames
and
smoking are therefore prohibited when
handling fuels.
Before refuelling, turn off the engine and
the auxiliary heating*. G
Risk of injury
Avoid any contact with fuels.
You can damage your health if your skin
comes

into direct contact with fuel or if you
inhale the vapour. G
Risk of fire
Do not use petrol to refuel vehicles with a
diesel
engine. Never mix diesel with petrol.
This would damage the fuel system and
engine and could result in a vehicle fire.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Even small
amounts of the wrong fuel will damage the
injection system. Damage resulting from
adding the wrong fuel is not covered by the
warranty. Operation
* optional
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Engine compartment
196Example of a vehicle with a diesel engine (CLS 320
CDI)
1
Cover
X Unscrew cap 1 and remove it.
X Top up by the amount of oil required.
! Do not add too much oil. If too much oil
is added, there is a risk of damage to the
engine or the catalytic converter.
X Screw cap 1 onto the filler neck.
H 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.
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 levelThe expansion tank is located in the engine
compartment on the left when viewed in the
direction of travel.
1
Cover
2 Expansion tank
3 Marker bar
X Slowly turn cap 1 by half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap 1 further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank 2 if the coolant is level with marker
bar 3 in the filler neck when cold or
approximately 1.5 cm higher when hot.
Operation
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Display messages
237Display messages Possible cause/consequence Possible solution
N Check engine oil
level when next
refuelling The engine oil level has dropped to a crit-
ical level. X
Check the engine oil level (Y page 195) and top
up the engine oil if necessary.
X Have the engine checked for leaks if the engine
oil needs topping up more often than usual. ± Display malfunc-
tion Consult work-
shop One or more electronic systems are
unable to deliver information to the on-
board computer. The following systems
may have failed:
R
Coolant temperature gauge
R Rev counter
R Cruise control or Speedtronic display X
Visit a qualified specialist workshop. H Tyre pressure Cau-
tion Tyre defect One or more tyres are losing air rapidly.
The affected wheel is highlighted in the
tyre pressure display of the tyre pressure
monitor*. X
Stop the vehicle without making any sudden
steering

or braking manoeuvres. Pay attention
to the traffic conditions as you do so.
X Repair or change the tyre (Y page 276). Practical advice
* optional
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