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Activating
The ESP is automati cally act ivated when the engine is st arted and it
performs a self-tes t . You can act ivate a deactivated ASR if required by
press ing the => page 1 70, fig. 129 butto n. When it is activated, the
message
ESP/ ASR on
appea rs briefly in the display .
Deactivating
You can deact ivate the ASR if requ ired by press ing the button (for less
than 3 seconds) => page 170, fig. 129. With the ASR deactivated , the
ESP check light comes on, see=> page 13. The message
ASR off
appea rs in the display as wel l. The ASR ca n be deactivated at any
speed.
The ASR should normally be activated a ll the t ime. Only in certain
except io nal sit uations w hen some slip is desira ble does it make se nse
to deactivate the ASR. Examp les:
• when driving wit h tire chains
• when driving in deep snow or on loose ground and
• when rocking the vehicle loose after it has become st uck.
When the abnormal s ituation is over, you sho uld activate the ASR
agai n.
&
WARNING
The increased safety afforded by ASR does not mean that you can
take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[ i )
Tips
To ensure t hat t he ASR works properly, a ll fou r whee ls mus t be fitted
with ide nt ica l t ires . Any d iffe rences in rolli ng radius of the t ires can
cause the system to red uce engine power when th is is not desired.
See a lso=> page 231, " New t ires and rep lacing t ires and whee ls" .
~ear
sp
il~r
-------------------
The rear spoiler improves vehicle handling and enh anc es
driver control .
Fig. 130 Swit ch fo r
rear spoiler
The rear spoi ler deploys and retracts. Spoiler operation can be set for
au t oma t ic or manual opera t ion.
Automat
ic mode
(normal
operation)
• Aut om at ic de ploymen t : At a speed of abou t 75 mp h (120 km/ h),
the rear spoiler deploys automatica lly.
• Aut oma t ic ret ract io n: W he n speed dro ps below abou t SO mp h (80
km/h), the rear spoi le r retracts automat ically .
Manual
mode
•
Man ua l dep loyment: Tapping br iefly on the switch => fig. 130
deploys the rea r spo iler.
•
Manua l retraction: At speeds up to about 10 mph (20 km/h),
retract t he rea r spoiler by pressing a nd holding the sw itch=> fig . 130.
At speeds between 10 mp h (20 km/h) and 75 mph (120 km/h) ,
retract the rear spoiler by t apping on the switch=> fig. 13 0.
After 15 cycles (dep loy and retract), manua l operation is suspended
for up t o 2 .5 minu t es . Above 7 5 mph (12 0 km/h), operation switches
to automatic mode .
Vehicle care
Do-it-yourselt service
iTechnical data
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