2018 MERCEDES-BENZ AMG GT R-ROADSTER lock

The proportion of cor
rosion inhibitor/antifreeze
concentrate in the engine cooling sy stem should
be:
R a minimum of 50% (antifreeze pr otection
down toappr oximately -37 °C)
R a maximum of 55% (antifreeze pr otection
down to-45 °C) Note
s on windscreen washer fluid Obser
vethe no tes on operating fluids
(/ page 366). &
WARNING ‑ Risk of fire and injury due to
windscreen washer concentrate
Wi ndsc reen washer concentrate is highly
fl ammable. It could ignite if it comes into
con tact wi thhot engine component parts or
th eex haust sy stem. #
Make sure that no windsc reen washer
concentrate spills out next tothefiller
opening. *
NO
TEDama getotheex terior lighting
due tounsuitable windsc reen washer
fl uid Uns
uitable windsc reen washer fluids may
damage the plastic sur face of theex terior
lighting. #
Only use windscreen washer fluids
which are also suitable for use on plas‐
tic sur faces, e.g. MB SummerFit or MB
Wi nterFit. *
NO
TEBlocked spr aynozzles caused by
mixing windscreen washer fluids #
Do not mix MB SummerFit and MB Win‐
te rFit with other windscreen washer flu‐
ids. Do not use distilled or de-ionised
water asthefill
le ve l sensor may be triggered er roneously.
Re commended windscreen washer fluid:
R Abo vefreezing point: e.g. MB SummerFit
R Below freezing point: e.g. MB WinterFit Fo
rth e cor rect mixing ratio, referto the informa‐
tion on the antif reeze conta iner.
Mix thewa sher fluid with the windscreen washer
fl uid all year round. Ve
hicle data Ve
hicle dimensions The heights speci
fied may vary as a result of the:
R tyres
R load
R condition of the suspension
R optional equipment 372
Tech nical da ta

Display messages
Possible causes/consequences and M
MSolutions
R You are per form ing emer gency braking using the electric parking brake (/ page134). #
Che ckthat the conditions for auto matic release of the electric parking brake are fulfilled. #
Release the electric parking brake manually.
T
!
÷
inoperative See Owner's
Manual *
EBD, ABS and ESP ®
are malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be malfunctioning. &
WARNING Risk of skidding if EBD, ABS and ESP ®
are malfunctioning
If EBD, ABS and ESP ®
are malfunctioning, the wheels can lock when braking and ESP ®
cann otcar ryout vehicle
st abilisation.
The steering capability and braking characteristics are thus se verely impaired. The br aking distance may
increase in an eme rgency braking situation. In addition, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Drive on carefully. #
Consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 37 9

Display messages
Possible causes/consequences and M
MSolutions
Once the cause of the problem is no longer present, driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: #
Pull over and stop theve hicle, paying attention toroad and traf fic conditions. #
Clean all senso rs (/ page 320). #
Restart the engine.
!
÷
currently unavailable See
Owner's Manual *
ABS and ESP ®
are temp orarily una vailable.
Other driving sy stems and driving saf ety sy stems may also be temp orarily una vailable.
The brake sy stem continues tooperate normally. The braking dis tance may increase in an emergency braking situa‐
tion. &
WARNING Risk of skidding if ABS and ESP ®
are malfunctioning
If ABS and ESP ®
are malfunctioning, the wheels could lock when braking and ESP ®
cann otcar ryout vehicle
st abilisation.
The steering capability and braking characteristics are thus se verely impaired. The br aking distance may
increase in an emergency braking situation. In addition, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have ABS and ESP ®
ch ecked immediately at a qualified specialist workshop. Display messages and
warning/indicator lamps 381

Display messages
Possible causes/consequences and M
MSolutions #
Carefully drive on a suitable stre tch of road, making slight steering mo vements at a speed abo ve30 km/h. #
Ifth e display message does not disappear, consult a qualified specialist workshop immediately. Drive carefully.
!
÷
inoperative See Owner's
Manual *
ABS and ESP ®
are malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be malfunctioning.
The brake sy stem continues tooperate normally. The braking dis tance may increase in an emergency braking situa‐
tion. &
WARNING Risk of skidding if ABS and ESP ®
are malfunctioning
If ABS and ESP ®
are malfunctioning, the wheels could lock when braking and ESP ®
cann otcar ryout vehicle
st abilisation.
The steering capability and braking characteristics are thus se verely impaired. The br aking distance may
increase in an emergency braking situation. In addition, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have ABS and ESP ®
ch ecked immediately at a qualified specialist workshop. #
Drive on carefully. #
Consult a qualified specialist workshop immediatel y.382
Display messages and warning/indicator lamps

Key
Display messages
Possible causes/consequences and M
MSolutions
 Insert key *T
hekey is not de tected continuously.
De tection of theke y is temp orarily malfunctioning or faulty. A warning tone will also sound. #
Inse rttheke y in the ignition lock and turn tothe desired key position. #
Consult a qualified specialist workshop.
Á Key not detected (red dis‐
play message) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Place theke y in the slot forst arting the engine with theke y (/ page113).
Á
Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 407

Display messages
Possible causes/consequences and M
MSolutions
Electronic rear axle differ-
ential lock currently
unavailable *T
he mo tor of the electronic rear axle locking dif fere ntial is overheating. #
Let the electronic rear axle locking dif fere ntial cool down bydriving defensively.
Electronic rear axle differ-
ential lock inoperative *T
he electronic rear axle locking dif fere ntial is inope rative. #
Consult a qualified specialist workshop.
Ð Rear axle steering Malfunc-
tion Visit workshop *T
herear axle steering is malfunctioning.
The rear axle has no steering capability.
When driving in a stra ight line, thesteering wheel may tilt. #
Continue driving carefully at a changed speed. #
Consult a qualified specialist workshop immediatel y.
Ð
Rear axle steering cur-
rently unavailable *T
herear axle steering is temp orarily una vailable. The turning circle may enlar ge. #
Stop theve hicle, paying attention toroad and traf fic conditions, and restart the engine.
If th e display message does not disappear: #
Drive on carefull y. #
Consult a qualified specialist workshop.
Rear spoiler inoperative
Limit XXX mph *T
hevehicle's speed is limited totheva lue displa yed. Therefore, there ar wing cannot reach the end position during
ex tension and only extends as far as is possible.
If ex tension of there ar wing is bloc ked, e.g. byice: Display messages and
warning/indicator lamps 409

Display messages
Possible causes/consequences and M
MSolutions #
Ensure that the cause of the bloc kage has been remo ved. #
Switch off the engine and lock theve hicle. #
Start theve hicle af ter a few minutes.
The rear wing mo vesto the initial position.
If th e problem persists or the cause cann otbe de tected: #
Consult a qualified specialist workshop.
Rear spoiler control sys-
tem inoperative *T
herear wing cannot reach the end position during retraction and extends again if possible.
If re traction of there ar wing is bloc ked, e.g. byice: #
Ensure that the cause of the bloc kage has been remo ved. #
Switch off the engine and lock theve hicle. #
Start theve hicle af ter a few minutes.
The rear wing mo vesto the initial position.
If th e problem persists or the cause cann otbe de tected: #
Consult a qualified specialist workshop. 41 0
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions Spoilers extended Caution,
reduced ground clearance
*T
he active aerodynamic profile cannot reach the end position when retracting or extending and reve rses if possible.
If ex tending or retracting of the active aerodynamic profile is bloc ked: #
Ensure that the cause of the bloc kage has been remo ved. #
Switch off the engine and lock theve hicle. #
Start theve hicle af ter a few minutes.
The active aerodynamic profile mo vesto the original position.
If th e problem persists or the cause cann otbe de tected: #
Consult a qualified specialist workshop.
? *T
he bonnet is open. &
WARNING Risk of accident due todriving with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up when theve hicle is in motion and block your vie w. #
Never unlock the engine bonn etwhen driving. #
Before every trip, ensure that the engine bonn etis loc ked. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions. #
Close the bonn et.
C *A
t least one door is open. #
Close all doors. Displ
aymessa ges and warning/indicator lamps 411