2018 MERCEDES-BENZ AMG GT ROADSTER Owners Manual

Display messages
Possible causes/consequences and M
MSolutions
Without changing gear,
consult workshop *T
he transmission is malfunctioning. The transmission position can no longer be shif ted. #
When the transmission is in position h, consult aqualified specialist workshop and do not change the trans‐
mission position. #
For all other transmission positions, park theve hicle safely. #
Consult a qualified specialist workshop.
Reversing not poss. Con-
sult workshop *T
he transmission is malfunctioning. Reversege ar can no lon ger be engaged. #
Consult a qualified specialist workshop.
Only select Park (P) when
vehicle is stationary *
The transmission can only be shif tedto position jwhen theve hicle is stationar y.
Risk of vehicle rolling
Driver door open and trans-
mission not in P *
The driver's door is not fully closed and the transmission is in position k,iorh. #
Shift the transmission toposition jwhen you park theve hicle.
Apply brake to select R *
You ha vetried toswitch totransmission position k. #
Dep ress the brake pedal. #
Shift the transmission toposition k.
Auxiliary battery malfunc-
tion *T
he auxiliary batteryforth e transmission is no longer being charge d. #
Consult a qualified specialist workshop. #
Untilthen, manually set the transmission toposition jbefore you swit choff the engine. 342
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Before leaving theve hicle, apply the electric parking brake.
d
Trans. oil overheated Drive
on with care *T
ransmission position Mand thete mp orary manual driving program are no longer available. The engine po wer is
re duced depending on theove rheating. #
Let the transmission oil cool down bydriving defensively until the display message goes out. Ty
res Display messages
Possible causes/consequences and M MSolutions
h Warning tyre defect *T
he tyre pressure in one or more tyres has dropped suddenly. The wheel position is displa yed. &
WARNING Risk of an accident from driving wi thaflat tyre
Flat tyres are dangerous in thefo llowing ways:
R The tyres can overheat and cause a fire.
R ‑ The driving characteristics, steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Do not drive with a flat tyre. #
Obse rveth e no tes on flat tyres. Display messages and
warning/indicator lamps 343

Display messages
Possible causes/consequences and M
MSolutions
No tes on flat tyres (/ page 266). #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tyres.
h Check tyre(s) *T
he tyre pressure in one or more tyres has dropped significantl y.The wheel position is displa yed. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tyre pressure (/ page 286) andthe tyres. 344
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
h Rectify tyre pressure *T
he tyre pressure is too low in at least one of the tyres, or the tyre pressure dif fere nce between the wheels is too
great. #
Check the tyre pressure and add air, if necessar y. #
When the tyre pressure is cor rect, restart the tyre pressure monitoring sy stem (/ page 289).
h Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source. As a result, no signals from the tyre pressure sensors are
re cei ved. The tyre pressure monitoring sy stem is temp orarily una vailable. #
Drive on.
The tyre pressure monitoring sy stem restarts automatically as soon as the cause has been rectified.
h
Wheel sensor(s) missing *T
he tyre pressure sensor signal is missing from one or more tyre(s). The pressure of the af fected tyre is not dis‐
pl ay ed. #
Have thefa ulty tyre pressure sensor replaced at a qualified specialist workshop.
h Tyre press. monitor inoper-
ative No wheel sensors *T
he wheels fitted do not ha vesuitable tyre pressure sensors. The tyre pressure monitoring sy stem is deactivated. #
Fit wheels with suitable tyre pressure sensors. Display messages and
warning/indicator lamps 345

Display messages
Possible causes/consequences and M
MSolutions
h Tyre press. monitor inoper-
ative *T
he tyre pressure monitoring sy stem is faulty. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
If th e tyre pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure
loss in one or more of the tyres.
Ty res with insuf ficient tyre pressure ma y,forex ample, af fect theve hicle's handling characteristics, steering and
braking. ‑ #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. #
Consult a qualified specialist workshop.
Tyre(s) overheated *A
t least one tyre is overheating. The af fected tyres are displ ayed in red. At temp eratures close tothe limit value,
th e tyres are displa yed in yello w. #
Drive more sl owly.
Reduce speed *A
t least one tyre is overheating. The af fected tyres are displ ayed in red. At temp eratures close tothe limit value,
th e tyres are displa yed in yello w. &
WARNING Risk of an accident from driving wi thove rheated tyres
Overheated tyres may bur st, particularly at high speeds. #
Reduce speed so that the tyres cool down. #
Reduce speed so that the tyres cool down. 346
Displaymessa ges 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 347

Display messages
Possible causes/consequences and M
MSolutions
Á Key not detected (white
display message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, start the engine with theke y in the slot (/ page113).
Á Cha nge key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page 58).Ve
hicle Display messages
Possible causes/consequences and M
MSolutions Traction Control inopera-
tive See Owner's Manual
*T
he traction contro l is malfunctioning. #
Consult a qualified specialist workshop. 348
Displaymessa ges and warning/indicator lamps

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 349