headlamp MERCEDES-BENZ METRIS 2020 MY20 Operator’s Manual

Lights
Display messages
Possible causes/consequences and
M Solutionsb
Check Left Low Beam
or
Check Right Low
Beam The left or right-hand low-beam headlamp is faulty.
X
Change the bulb ( Y page 105).b
Chk. Trailer L.
Turn Sig.

or Chk.
Trailer R. Turn
Sig. The left or right-hand trailer turn signal lamp is faulty.
X
Change the bulb (see the trailer manufacturer's operating instruc-
tions). b
Chk. Trailer Brake
Lamp The trailer brake lamp is faulty.
X Change the bulb (see the trailer manufacturer's operating instruc-
tions). b
Chk. Trailer L.
Tail Lamp

or Chk.
Trailer R. Tail
Lamp The left or right-hand trailer tail lamp is faulty.
X Change the bulb (see the trailer manufacturer's operating instruc-
tions). b
Auto Lamps Inopera‐
tive The light sensor is faulty. The automatic headlamp feature is mal-
functioning.
X
Switch the light functions on/off manually (Y page
99).
X Visit a qualified specialist workshop. b
Chk. Rear L. Turn
Signal

or Chk.
Rear R. Turn Signal The rear left-hand or rear right-hand turn signal is faulty.
X Change the bulb (Y page 105).b
Chk. Front L. Turn
Signal

or Chk.
Front R. Turn Sig‐
nal The front left-hand or front right-hand turn signal is faulty.
X Change the bulb (Y page 105).b
Chk. Center Brake
Lamp The high-mounted brake lamp is faulty.
X
Visit a qualified specialist workshop. b
Chk. L. Tail/
Brake Lamp

or Chk.
R. Tail/ Brake Lamp The left or right-hand tail lamp/brake lamp is faulty.
X Change the bulb (Y page 105).202
Display messages (vehicles without steering wheel buttons)
On-board computer and displays

Display messages
Possible causes/consequences and
M Solutionsb
Check Left High
Beam
or Check
Right High Beam The left or right-hand high-beam headlamp is faulty.
X
Change the bulb ( Y page 105).b
License Plate Lamp The left or right-hand license plate lamp is faulty.
X Visit a qualified specialist workshop. b
Switch Off Lights The lights are still switched on when you leave the vehicle. An addi-
tional warning tone sounds.
X Turn the light switch to à or $.b
Check Left Fog Lamp
or
Check Right Fog
Lamp The left-hand or right-hand front fog lamp is faulty.
X Visit a qualified specialist workshop. b
Rear Fog Lamp The rear fog lamp is faulty.
X Change the bulb (Y page
105).b
Chk. Front L. Park‐
ing Lamp

or Chk.
Front R. Parking
Lamp The front left or front right parking lamp or standing lamp is faulty.
X Change the bulb ( Y page 105).b
Backup Light The left or right-hand backup lamp is faulty.
X Change the bulb (Y page
105).b
Check Left Tail
Lamp

or Check
Right Tail Lamp The left or right-hand tail lamp is faulty.
X Change the bulb (Y page 105).b
Malfunction The exterior lighting is faulty.
X Visit a qualified specialist workshop. Vehicles with trailer tow hitch: a fuse may be defective.
X Check the fuses and if necessary replace any blown fuses (see
the "Fuse allocation" supplement).
X If the display message does not disappear, consult a qualified
specialist workshop. b
Chk. L. Day Run‐
ning Lgt.

or Chk.
R. Day Running Lgt. The left or right-hand daytime running lamp is faulty.
X Change the bulb (Y page 105).Display messages (vehicles without steering wheel buttons)
203
On-board computer and displays Z

Lights
Display messages
Possible causes/consequences and
M Solutionsb
Check Left Low Beam
or
Check Right Low
Beam The left or right-hand low-beam headlamp is faulty.
X
Change the bulb ( Y page 105).b
Check Trailer Left
Turn Signal

or
Check Trailer
Right Turn Signal The left or right-hand trailer turn signal lamp is faulty.
X
Change the bulb (see the trailer manufacturer's operating instruc-
tions). b
Check Trailer
Brake Lamp The trailer brake lamp is faulty.
X Change the bulb (see the trailer manufacturer's operating instruc-
tions). b
Check Trailer Left
Tail Lamp

or Check
Trailer Right Tail
Lamp The left or right-hand trailer tail lamp is faulty.
X Change the bulb (see the trailer manufacturer's operating instruc-
tions). b
Auto Lamp Function
Inoperative The light sensor is faulty. The automatic headlamp feature is mal-
functioning.
X
Switch the light functions on/off manually (Y page
99).
X Visit a qualified specialist workshop. b
Check Rear Left
Turn Signal

or
Check Rear Right
Turn Signal The rear left-hand or rear right-hand turn signal is faulty.
X Change the bulb (Y page 105).b
Check Front Left
Turn Signal

or
Check Front Right
Turn Signal The front left-hand or front right-hand turn signal is faulty.
X Change the bulb (Y page 105).b
Check Center Brake
Lamp The high-mounted brake lamp is faulty.
X
Visit a qualified specialist workshop.216
Display messages (vehicles with steering wheel buttons)
On-board computer and displays

Display messages
Possible causes/consequences and
M Solutionsb
Check Left Tail
and Brake Lamps
or
Check Right Tail
and Brake Lamps The left or right-hand tail lamp/brake lamp is faulty.
X Change the bulb (Y page 105).b
Check Left High
Beam

or Check
Right High Beam The left or right-hand high-beam headlamp is faulty.
X
Change the bulb ( Y page 105).b
License Plate Lamp The left or right-hand license plate lamp is faulty.
X Visit a qualified specialist workshop. b
Switch Off Lights The lights are still switched on when you leave the vehicle. An addi-
tional warning tone sounds.
X Turn the light switch to à or $.b
Check Left Fog Lamp
or
Check Right Fog
Lamp The left-hand or right-hand front fog lamp is faulty.
X Visit a qualified specialist workshop. b
Rear Fog Lamp The rear fog lamp is faulty.
X Change the bulb (Y page
105).b
Check Front Left
Parking Lamp or
Check Front Right
Parking Lamp The front left or front right parking lamp or standing lamp is faulty.
X Change the bulb ( Y page
105).b
Backup Light The left or right-hand back-up lamp is faulty.
X Change the bulb (Y page
105).b
Check Left Tail
Lamp

or Check
Right Tail Lamp The left or right-hand tail lamp is faulty.
X Change the bulb (Y page 105).b
Malfunction See
Operator's Manual The exterior lighting is faulty.
X Visit a qualified specialist workshop. Display messages (vehicles with steering wheel buttons)
217
On-board computer and displays Z

Have the brake fluid renewed every two years
at a qualified specialist workshop. Observe the
information regarding brake fluid in the "Ser-
vice products and capacities" section
(Y page
310).Check the brake fluid level regularly, e.g.
weekly or when refueling.
Checking the brake fluid level
X Stop your vehicle as far away from traffic as
possible on level ground.
X Switch off the engine.
X Secure the vehicle to prevent it from rolling
away.
X Open the hood (Y page
251).
X Check the brake fluid level.
The brake fluid level is adequate if the level
is between the MIN mark and MAX mark on
brake fluid reservoir :.
X Close the hood. Washer fluid
G
WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department. G
WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts of the exhaust system, can become very
hot. Working in the engine compartment
poses a risk of injury.
Where possible, let the engine cool down
and touch only the components described in
the following. G
WARNING
Windshield washer concentrate is highly
flammable. If windshield washer concentrate
gets onto hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure that windshield washer concen-
trate is not spilled in the vicinity of the filler
neck.
! Only use washer fluid which is suitable for
lamp lenses, e.g. MB SummerFit or MB Win-
terFit. Unsuitable washer fluid may damage
the lamp lenses of the headlamps. Example: washer fluid reservoir
Add windshield washer concentrate to the
washer fluid all year round. Observe the infor-
mation regarding washer fluid under "Service
Products and Capacities"

(Y page 312).
Adding washer fluid
X Mix the washer fluid to the appropriate mix-
ing ratio in a container beforehand.
X Open the hood ( Y page
251).
X Pull cap : on the washer fluid reservoir
upwards at the tab.
X Add the premixed washer fluid.
X Press cap : onto the filler neck until it
engages audibly.
X Close the hood.256
Engine compartment
Maintenance and care

Capacities
Front-compartment
air-conditioning
system Capacity
Refrigerant
21.2 oz
(600 g) PAG oil
2.8 oz
( 79 g) Rear-compartment
air-conditioning
system Capacity
Refrigerant
33.5 oz
(950 g) PAG oil
4.9 oz
(139 g) Washer fluid
Important safety notes G
WARNING
Windshield washer concentrate is highly
flammable. If windshield washer concentrate
gets onto hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure that windshield washer concen-
trate is not spilled in the vicinity of the filler
neck.
! Only use washer fluid which is suitable for
lamp lenses, e.g. MB SummerFit or MB Win-
terFit. Unsuitable washer fluid may damage
the lamp lenses of the headlamps.
When handling washer fluid, observe the
important safety notes on service products
(Y page

305).
Mixing ratio Add windshield washer concentrate to the
washer fluid all year round. Adapt the mixing
ratio to the ambient temperature. At temperatures above freezing:
X Fill up the washer fluid reservoir with a mix-
ture of water and windshield washer con-
centrate, e.g. Summerwash to prevent
smearing.
At temperatures below freezing:
X Fill up the washer fluid reservoir with a mix-
ture of water and windshield washer con-
centrate, e.g. Winterwash if there is a dan-
ger of frost.
This prevents washer fluid from freezing on
the windshield.
Capacities Windshield washer system with/without
heating
Washer fluid reser-
voir Washer fluid
Unheated Approx. 3.7 US qt
(3.5 l) Heated Approx. 6.3 US qt
(6.0 l) Vehicle data
General notes
The following section contains important tech-
nical data for your vehicle. Additional vehicle-
specific and equipment-dependent technical
data, such as vehicle weights, can be found in
your vehicle registration papers. 312
Vehicle data
Technical data