alternator MERCEDES-BENZ V-CLASS MPV 2021 Owners Manual

#
Make sure that the positive term inal of
th e connected battery does not come
into contact with vehicle parts. #
Never place me tal objects or tools on a
batter y. #
The described order of the battery
clamps must be obser ved when con‐
necting and disconnecting the batter y. #
When giving starting assistance, alw ays
make sure that you on lyconnect battery
te rm inals with identical polarity. #
During starting assis tance, you must
obse rveth e described order for con‐
necting and disconnecting the jump
lead. #
Do not connect or disconnect the bat‐
te ry cla mp s while the engine is running. &
WARNING Danger of chemical burns
from the battery acid
Battery acid is caustic. #
Avoid contact with the skin, eyes or
clo thing. #
Do not lean overth e batter y. #
Do not inhale battery gases. #
Keep children away from the batter y. #
Immedia tely rinse battery acid off thor‐
oughly with plenty of clean water and
seek medical attention immediately. *
NO
TEDama getoelectronic components
due towo rkcar ried out incor rectly on the
battery If
th est ar ter battery is disconnected before
th eke y is remo ved from the ignition loc k,
electronic components or assemblies, such
as the alternator, can be damaged. #
Switch off the engine and remo vethe
ke y from the ignition loc k. #
Check tosee that there are no indicator
lamps lit in the instrument clus ter. #
Alwaysre mo vethe negative term inal
clamp firs t and then the positive term i‐
nal clamp. #
Do not inter change the battery clamps. Alw
ays ha vewo rkon the battery car ried out at a
qu alified specialist workshop. If, in
exceptional circums tances, you must dis‐
connect the battery yourself, pay attention tothe
fo llowing:
R Obser vethe no tes on the12 V battery
(/ page 235).
R Secure theve hicle toprev ent it from rolling
aw ay.
R Afterth e battery has been disconnected, the
parking brake is automatically applied. Yo u
can then no longer mo vetheve hicle.
R Forve hicles with an automatic transmission,
th e transmission is loc ked in position 005Dafter
disconnecting the batter y.Yo u can then no
longer mo vetheve hicle.
R The battery and the co ver of the positive ter‐
minal clamp must be fitted securely du ring
ope ration. Seat base (e
xamp le:right-hand front seat)
The following description on connecting and fit‐
ting the battery uses theex ample of thest ar ter
battery in the seat base of theright-hand front
seat. #
Switch off all electrical consumers. #
Switch off the engine and remo vethekey
from the ignition loc k. #
Open the front right-hand door. #
Press bo thcatch springs 1down and
re mo vecover2 upwards from the seat
base. #
Remo vecover2 bypulling upwards at an
angle from the seat base. 240
Breakdown assis tance

Display messages
Possible causes/consequences and 0050 0050Solutions #
Ifyo u hear sc raping sounds, pull over and stop theve hicle
in accordance with the traf fic conditions, and set a higher
ve hicle le vel if possible. #
Drive in a manner appropriate forth e cur rent le vel, but do not
exc eed 80 km/h. #
Consult a qualified specialist workshop. Engine
Display messages
Possible causes/consequences and 0050 0050Solutions
003D
See Owner's Manual *A
warning tone also sounds.
The battery is no longer being charge dfo r one of thefo llowing rea‐
sons:
R defective alternator
R torn poly -Vbelt
R malfunction in the electronics #
Stop immediately in accordance with the traf fic conditions and
switch off the engine.
Do not continue driving. If you do, the engine may overheat. #
Secure theve hicle against rolling away. #
Consult a qualified specialist workshop.
003A
Clean the fuel filter *T
here is water inthe fuel filter. The water must be drained off. #
Consult a qualified specialist workshop.
00AC
Coolant Stop vehicle
Switch engine off *A
warning tone also sounds. The coolant is too hot. &
WARNING Risk of burn s when opening the bonn et
If yo u open the bonn etwhen the engine has overheated or when
th ere is a fire inthe engine compartment, thefo llowing situa‐
tions may occur:
R You could come into con tact with hotgases.
R You could come into con tact with other hot, escaping oper‐
ating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the
bonn etclosed and call thefire service. &
WARNING Risk of scalding from hot coolant
If yo u open the cap, you could be scalded. #
Letthe mo tor cool down before opening the cap. Display messages and
warning and indicator lamps 293