check engine light MERCEDES-BENZ GLE SUV 2021 Owners Manual

If
th e indicator/warning lamps in the instrument
clus ter do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has fro‐
zen. In this case you may neither jump-s tart the
ve hicle nor charge the batter y.
The service life of a battery that has been
th awe d may be dramatically shor tened. The
st arting characteristics may be impaired, espe‐
cially at low temp eratures.
It is recommended that you ha veathaw ed bat‐
te ry checked at a qualified specialist workshop.
Plug-in hybrid: be sure toobser vethe no tes in
th e Supplement. You could otherwise failto rec‐
ognise dangers.
All vehicles
* NO
TEDama gecaused bynumerous or
ex tended attempt sto start the engine Nume
rous or extended attempt sto start the
engine may damage the catalytic con verter
due tonon-combu sted fuel. #
Avoid numerous and extended attem pts
to start the engine. Obser
vethefo llowing points during starting
assis tance and when charging the battery:
R Only use undamaged jump lead/charging
cables with a suf ficient cross-section and
insula tedte rm inal clamps.
R Non- insulated parts of thete rm inal clamps
must not come into con tact wi thother me tal
parts while the jump lead/charging cable is
connected tothe battery/jump-s tart connec‐
tion point.
R The jump lead/charging cable must not
come into contact wi thany parts which may
mo vewhen the engine is running.
R Alw ays make sure that nei ther you nor the
battery is elect rostatically charge d.
R Keep away from fire and naked flames.
R Do not lean overth e batter y.
Obser vethe additional following points when
ch arging the battery:
R Only use battery charge rs tested and
appr oved for Mercedes-Benz.
R Read the battery charge r's operating instruc‐
tions before charging the batter y. Obser
vethe additional following points during
st arting assis tance:
R Starting assis tance may only be pr ovided
using vehicles, batteries or other jump start
devices with a nominal voltage of 12V.
R The vehicles must not touch.
R Vehicles with a petrol engine: jump-start
th eve hicle only when the engine and exhaust
sy stem are cold. St
arting assi stance and charging the12 V
battery Requ
irements:
R The vehicle is secured with the electric park‐
ing brake.
R Vehicles with automatic transmission: the
transmission is in position 005D.
R The ignition and all electrical consumers are
switched off.
R The bonnet is open. Breakdown assi
stance 377

Wa
rning/indicator lamp
Possible causes/consequences and 0050 0050Solutions
00B9 Engine diagnosis warning
lamp *T
he yellow engine diagno stics warning lamp is lit while the engine is running.
A malfunction has occu rred in the engine, theex haust sy stem or the fuel sy stem.
The emissions limit value may ha vebeen exceeded and the engine may be running in emergency operation mode. #
Have theve hicle checked as soon as possible at a qualified specialist workshop.
Ve hicles with a diesel engine: the fuel tank may ha vebeen run dr y. #
Start the engine thre eto four times af terre fuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency operation mode is cancelled. The vehicle need
not be checked.
003D
Elect rical fault warning
lamp *T
hered elect rical fault warning lamp is lit.
There is a fault in the electrics. #
Notethe messages on the multifunction displa y.
00B6
Fu elreser vewarning lamp
lights up *T
he yellow fuel reser ve wa rning lamp lights up while the engine is running.
The fuel supp lyhas dropped into there ser verange. #
Refuel. Displ
aymessa ges and warning/indicator lamps 493

00D7
48 V battery See Owner's Man‐
ual......................................................... 477
: Active Light Sy stem inoperative... 432
0099 AdBlue sy stem fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km ................................................ .484
0099 AdBlue sy stem fault Emer‐
ge ncy op. in XXX miles See Owner's
Manual.................................................. 483
0099 AdBlue sy stem fault Engine
st art not possible................................. .484
0099 AdBlue sy stem fault See Own‐
er's Manual .......................................... .483
00B3 Add 1 litre engine oil when
next refuelling....................................... 485
é ATTENTION ASSIST inoperative ....454
é ATTENTION ASSIS T:Take a
break!....................................................4 55
: Automatic driving lights inoper‐
ative...................................................... 431 006F
Cannot fold 2nd seat rowfor‐
wa rds See Owner's Manual................... 442
Á Changekey bat teries ...................4 29
004D Checkbrake fluid le vel................. 453
ï Check trailer hitch lo ck................ 436
0077 Check tyre(s)................................ 479
003A Clean the fuel filter ...................... 446
00C4 Compressor is cooling .................469
ÿ Coolant Stop vehicle Switch
engine off..............................................4 45
á Currently unavailable Camera
view restricted....................................... 465
¸ Currently unavailable Radar
sensors dirty.........................................4 64
0025 currently una vailable See Own‐
er's Manual .......................................... .470
00E5 currently una vailable See Own‐
er's Manual ............................................ 471
00B3 Engine oil le vel cannot be
measured .............................................. 486 00B3
Engine oil le velRe duce oil le vel.... 485
00B3 Engine oil le velSt op vehicle
Switch engine off.................................. 485
00B3 Engine oil pressure Stop
Switch off engine.................................. 486
ä Fault Drive at max. 80 km/h
...................................................... 466, 467
ä Fault Stop.....................................4 67
0075 Front left malfunction Consult
wo rkshop (e xample).............................. 426
003B inoperative Battery low................ 435
003B inoperative Refuel vehicle ............ 435
003B inoperative See Owner's Man...... 434
0025 inoperative See Owner's Manual. .471
00E5 inoperative See Owner's Man‐
ual......................................................... 472
007A inoperative See Owner's Man‐
ual......................................................... 473
0053 Inoperative................................... 474
î inoperative................................... 459 51 0
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