2019 MERCEDES-BENZ CLA COUPE run flat

at
the nearest qualified specialist work‐
shop. The new wheel must ha vethe
cor rect dimensions. Check
the tyre pressure of the emer gency spa re
wheel fitted. Co rrect the pressure as necessar y.
The maximum permissible speed with an emer‐
ge ncy spa rewheel fitted is 80 km/h.
Do not fit th e emer gency spa rewheel with sn ow
ch ains.
Re place the emer gency spa rewheel af ter six
ye ars at the latest, rega rdless of wear.
% Ve
hicles with a tyre pressure loss warn‐
ing sy stem: if an emer gency spa rewheel is
fi tted the tyre pressure loss warning sy stem
cann otfunction reliabl y.Only restart the sys‐
te m again when the emer gency spa rewheel
has been replaced with a new wheel.
Ve hicles with a tyre pressure monitoring
sy stem: if an emer gency spa rewheel is fit‐
te dth e tyre pressure monitoring sy stem can‐
not function reliabl y.Fo r a few minutes af ter
an emer gency spa rewheel is fitted, the sys‐
te m may still display the tyre pressure of there
mo ved wheel. Only restart the sy stem
again when the emer gency spa rewheel has
been replaced with a new wheel.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 486)
R Tyre pressure table (/ page 487) Re
moving the eme rgency spa rewheel The deflated eme
rgency spare wheel is secured
in the emer gency spa rewheel bag in the boot. #
Obser vethe information on mounting tyres
(/ page 495). #
Open the boot. #
Detach thefast ening stra ps. #
Unhook there taining spring hooks of thefa s‐
te ning stra ps from the brac kets. #
Remo vethe emer gency spa rewheel bag with
th e emer gency spa rewheel. #
Open the emer gency spa rewheel bag and
re mo vethe emer gency spa rewheel. Inflating
the emer gency spare wheel *
NO
TEOverheating due tothe tyre infla‐
tion compressor running too long #
Do not runth e tyre inflation compres‐
sor for longer than ten minu tes without
inter ruption. Re
quirements:
R Comply with the manufacturer's saf ety no tes
on thest icke r of the emer gency spa rewheel
and on the tyre inflation compressor.
R Remo vethe tyre inflation compressor from
th estow age space under the boot floor
(/ page 466). Wheels and tyres
505

Re
moving the collapsible spare wheel The collapsible spare wheel is secured in
the col‐
lapsible spare wheel bag in the boot. #
Obser vethe information on mounting tyres
(/ page 495). #
Open the boot. #
Detach the securing stra ps. #
Unhook there taining spring hooks of the
securing stra ps from the brac kets. #
Remo vethe collapsible spare wheel bag
to ge ther with the collapsible spare wheel. #
Open the collapsible spare wheel bag and
re mo vethe collapsible spare wheel. Inflating
the collapsible spa rewheel Re
quirements:
R Mount the collapsible spare wheel as descri‐
bed. (/ page 503)
R Remo vethe tyre inflation compressor from
th estow age space under the boot floor.
(/ page 466) *
NO
TEDama getothe collapsible spare
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously
inflating the collapsible spare wheel can
damage its rim. #
Inflate the collapsible spare wheel using
th e tyre inflation compressor before
lo we ring theve hicle. *
NO
TEOverheating due tothe tyre infla‐
tion compressor running too long #
Do not runth e tyre inflation compres‐
sor for longer than ten minu tes without
inter ruption. #
Pull connec tor4 and the hose out of the
housing. #
Unscr ew the cap from theva lve on the col‐
lapsible spare wheel. #
Screw union nut 1ofthe hose onto the
va lve.
Make sure on and off switch 3ofthe tyre
inflation compressor is set to0. #
Insert plug 4into the cigar ette lighter
soc ket (/ page 121) or into a 12V soc ket
( / page 121) in your vehicle. #
Switch on the po wer supp ly (/ page 156). 508
Wheels and tyres

Ty
res Display messages
Possible causes/consequences and M
MSolutions
Tyre pressure Check tyres *T
he tyre pressure loss warning sy stem has de tected a significant loss in pressure. &
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 486) andthe tyres. #
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (/ page 494).
Check tyre pressures then
restart Run Flat Indicator *T
he tyre pressure loss warning sy stem generated a displ aymessa geand has not been restar ted since. #
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (/ page 494). Display messages and
warning/indicator lamps 565

Display messages
Possible causes/consequences and M
MSolutions
Run Flat Indicator inopera-
tive *T
he tyre pressure loss warning sy stem is malfunctioning. #
Consult a qualified specialist workshop.
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
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. 566
Display messages and warning/indicator lamps

æRe
servefuel le vel........................ 553
6Re stra int sys. malfunction Con‐
sult workshop ...................................... 536
Re versing not poss. Consult work‐
shop ..................................................... 561
Risk of vehicle rolling away Apply
pa rking brake See Owner's Manual .....5 62
Risk of vehicle rolling away Parking
brake not applied See Owner's Man‐
ual ...................................................... .535
Risk of vehicle rolling Driver door
open and transmission not in P ...........560
Ru n Flat Indicator inope rative ............. 566
#See Owner's Manual .................... 551
Speed limit (winter tyres) XXX km/h ... 550
Speed Limit Assi stinope rative ........... .546
ÙSt eering malfunction Incre ased
ph ysical ef fort See Owner's Manual ....574
Ù Steering malfunction See Own‐
er's Manual ......................................... 563 ÙSt
eering malfunction Stop
immediately See Owner's Manual ........575
# Stop vehicle Lea veengine run‐
ning ..................................................... 553
#St opvehicle See Owner's Man‐
ual .......................................................5 52
çsuspended .................................. 548
b Switch off lights .......................... 579
b Switch on headlamps ..................579
Te aching in transmission comple te..... 563
Te aching in transmission Operate
selec tor le ver Brake for XX seconds
Risk of vehicle rolling .......................... 562
To shift out of P or N,depress brake
and start engine .................................. 560
ÚTo p upAdBlue Perf.re duced in
XXX miles See Owner's Manual ...........557
Ú Top up AdBlue Perf.re duced:
XXX km/h Nostart in XXX km ............ 558
To p up coolant See Owner ’sManual ....551 ¥
Top up washer fluid .................... .577
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ......................545
Tr af fic Sign Assi stinope rative ............. 545
ï Trailer coupling extending… .........572
Tr ans. oil overheated Drive on with
care ..................................................... 562
Tr ansmission Malfunction .................... 561
Tr ansmission Malfunction Stop ............ 561
Tr ansmission Malfunction Visit work‐
shop ....................................................5 63
!Tu rnon the ignition torelease
th e parking brake ................................ 531
hTy repress. monitor cur rently
una vailable .......................................... 566
hTy repress. monitor inoperative
No wheel sensors ................................ 567
hTy repress. monitor inoperative ...566
Ty re pressure Check tyres ...................565
Ty re(s) ove rheated ...............................5 69 Index
609