2017 MERCEDES-BENZ CLA bulb

Display messages
Possible causes/consequences and P Solutions
If th e condition s are no t fulfilled , th e system is no t operating correctly.X
Visit a qualified specialist workshop immediately.
Fo r further information about th e Occupant Classification System, see
( Y
page 47).
Lights
i Vehicles wit h LE D bulbs in th e ligh t clusters :
The display message for th e correspondin g lamp only appear s when all of th e LEDs in th e lamp
hav e failed.
Display messages
Possible causes/consequences and P Solutions
I Check Lef t Corner ‐
ing Light or Check
Right Cornering
Light The lef t or right-hand cornering ligh t is defective.X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Check Lef t Low Bea m
or Check Right Low
Bea m The lef t or right-hand low-beam headlamp is defective. X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Check Rea r Lef t
Tur n Signal or
Check Rea r Right
Tur n Signal The rear left-han d or rear right-hand tur n signal is defective.X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Check Front Lef t
Tur n Signal or
Check Front Right
Tur n Signal The fron t left-han d or fron t right-hand tur n signal is defective.X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Check Lef t Mirror
Tur n Signal or
Check Right Mirror
Tur n Signal The tur n signal in th e left-han d or right-hand exterio r mirror is defec -
tive. X
Visit a qualified specialist workshop .
I Check Center Brake
Lam p The high-mounte d brak e lamp is faulty.X
Visit a qualified specialist workshop .Display messages 19 9
On-board computer and displays Z

Display messages
Possible causes/consequences and P Solutions
I Check Lef t Brake
Lam p or Check Right
Brake Lam p The lef t or right-hand brak e lamp is defective.X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Check Lef t Tai l and
Brake Lamps or
Check Right Tai l
and Brake Lamps The lef t or right-hand tai l lamp/brake lamp is defective.X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Check Lef t Hig h
Bea m or Check Right
Hig h Bea m The lef t or right-hand high beam is defective. X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Licens e Plate Lam p The lef t or right-hand license plat e lamp is faulty.X
Visit a qualified specialist workshop .
I Rea r Fog Lam p The rear fog lamp is faulty. X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Check Front Lef t
Parkin g Lam p or
Check Front Right
Parkin g Lam p The fron t lef t or fron t right parking or standing lamp is defective.X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Backup Light The backup lamp is defective. X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Check Lef t Tai l
Lam p or Check Right
Tai l Lam p The lef t or right-hand tai l lamp is defective.X
Visit a qualified specialist workshop .200
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
I Check Front Lef t
Sidemarke r Lam p or
Check Front Right
Sidemarke r Lam p The fron t left-han d or fron t right-hand side marke r lamp is faulty.X
Visit a qualified specialist workshop .
I Check Rea r Lef t
Sidemarke r Lam p or
Check Rea r Right
Sidemarke r Lam p The rear left-han d or rear right-hand side marke r lamp is faulty.X
Visit a qualified specialist workshop .
I Check Lef t Daytim e
Runnin g Light or
Check Right Daytim e
Runnin g Light The lef t or right-hand daytime runnin g lamp is faulty.X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 103).
or X
Visit a qualified specialist workshop .
I Active Headlamps
Inoperative The active ligh t function is faulty.X
Visit a qualified specialist workshop .
I Malfunction See
Operator' s Manual The exterio r lighting is malfunctioning .X
Visit a qualified specialist workshop .
I Aut o Lam p Function
Inoperative The ligh t sensor is defective. X
Visit a qualified specialist workshop .
I Switch Off Lights The lights are still switched on when you leav e th e vehicle. A warning
tone also sounds. X
Turn th e ligh t switch to th e X position .
I Switch On Headlamps You are drivin g wit h low-beam headlamp s switched off .X
Turn th e ligh t switch to th e X or X position .Display messages 20 1
On-board computer and displays Z