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68 Instruments and warning/control lamps
Normal temperature
If in normal operations, the diodes light up until the central zone, it means
that the engine has reached operating temperature. At high outside temper-
atures and when making the engine work hard, the diodes may continue
lighting up and reach the upper zone. This is no cause for concern, provided
the control lamp does not light up on the instrument panel digital dis-
play.
Heat range
When the diodes light up in the upper area of the display and the control
lamp appears on the instrument panel display, the coolant temperature
is excessive ⇒ page 215.
CAUTION
● To ensure a long useful life for the engine, avoid high revs, driving at
high speed and making the engine work hard for approx. the first 15 mi-
nutes when the engine is cold. The phase until the engine is warm also de-
pends on the outside temperature. If necessary, use the engine oil tempera-
ture* as a guide ⇒ page 77
● Additional lights and other accessories in front of the air inlet reduce the
cooling effect of the coolant. At high outside temperatures and high engine
loads, there is a risk of the engine overheating.
● The front spoiler also ensures proper distribution of the cooling air when
the vehicle is moving. If the spoiler is damaged this can reduce the cooling
effect, which could cause the engine to overheat. Seek specialist assis-
tance.
Gear-change indicator
This additional indicator function can help to save fuel.
Fig. 39 Instrument pan-
el: Gear-change indicator
(manual gearbox)
To familiarise yourself with the gear-change indicator, we recommend driv-
ing in the normal way to start with. A gear change will be recommended if
the gear you are in is not the most economical choice.
If no gear-change is recommended, you are already in the most economical
gear.
Vehicles with a manual gearbox
The following display symbols
⇒
Fig. 39 mean:
● Change to a higher gear: The suggested gear appears to the right of
the current gear when a higher gear is recommended.
● Change to a lower gear: The suggested gear appears to the left of the
current gear when a lower gear is recommended.
The gear recommendation may occasionally skip a gear (2nd 4th).
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