CL - Interactive Owner's Manual [In depth | Practical advice

Changing the bulbs

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Notes on changing bulbs

Bulbs and lamps are an important aspect of vehicle safety. You must therefore make sure that all bulbs function correctly at all times.

Risk of injury

Bulbs and lamps can be very hot. You should therefore allow them to cool down before you change them. Otherwise, you could be burned if you touch them.

Keep bulbs out of the reach of children. Otherwise, they could damage them, for example, and injure themselves.

Never use a bulb which has been dropped. Such a bulb may explode and injure you.

H7 bulbs are pressurised and could explode when you change them, particularly if they are very hot. You should therefore wear eye protection and gloves when you are changing them.

Risk of injury

Xenon bulbs are under high voltage. You could get an electric shock and be seriously or even fatally injured if you touch the electric contacts on xenon bulbs. Do not, therefore, remove the cover on xenon bulbs.

Do not change xenon bulbs yourself, but have them replaced at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required.

Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this purpose. In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop.

Risk of injury

HiP bulbs are pressurised and may explode when you change them, thereby injuring you.

Do not change HiP bulbs yourself; have them replaced at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required.


Do not change the LEDs yourself. You could otherwise damage the LEDs or parts of the vehicle.

Overview

Front bulbs

	Bulb	Type
	Dipped-beam headlamp	D1S 35 W (Vehicles with bi-xenon headlamps: always have these bulbs changed at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre.)
	Additional turn signal lamp	LEDs (These bulbs must be replaced at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre.)
	Side lamp/parking lamp	W 5 W
	Main-beam headlamp/motorway spot lamp or	H7 55 W
	IR projector* (with Night View Assist*)	H11 55 W
	Cornering light	H7 55 W
	Front foglamp	H11 55 W
	Turn signal lamp	PY 24 W

Rear bulbs

	Bulb	Type
	Third brake lamp	LED
	Rear foglamp	HiP 19 W
	Brake/tail lamp	LED
	Licence plate lamp	W 5 W
	Reversing lamp	HiP 16 W
	Turn signal lamp	HiP 16 W

Before changing bulbs

You can replace the following bulbs:

Replacing the bulb in the main-beam headlamps and the motorway spot lamp
Changing the IR projector*
Cornering light

Observe the following points:

Use only the bulb types specified here.
To prevent a short-circuit, switch off the lights before changing a bulb.
Only hold bulbs with a clean, lint-free cloth.
Do not work with wet or greasy fingers.
If the new bulb still does not light up, consult a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre.


Have the headlamp setting checked regularly at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre.

Changing the front bulbs

resources/font_symbols/mbsymb5/mbsymb5_0031.png

Housing cover

resources/font_symbols/mbsymb5/mbsymb5_0032.png

Retaining lug

Headlamps

Replacing the bulb in the main-beam headlamps and the motorway spot lamp

	Switch off the lights.
	Open the bonnet.
	Pull housing cover by retaining lug in the direction of the arrow and remove it more.

Fitting aid

Headlamps

Left-hand headlamp: pull fitting aid resources/font_symbols/mbsymb5/mbsymb5_0031.png up and remove the bulb from headlamp with fitting aid .

Right-hand headlamp: pull fitting aid resources/font_symbols/mbsymb5/mbsymb5_0031.png down and remove the bulb from headlamp with fitting aid .

Bulb

Fitting aid

	Take bulb out of the bulb holder.
	Insert new bulb into the bulb holder.


Make sure that the bulb is inserted securely in the bulb holder. The bulb must be level in the bulb holder.

Left-hand headlamp: insert fitting aid resources/font_symbols/mbsymb5/mbsymb5_0032.png so that the handle of fitting aid faces upwards.

Right-hand headlamp: replace fitting aid resources/font_symbols/mbsymb5/mbsymb5_0032.png so that the handle of fitting aid faces downwards.

Left headlamp: pull fitting aid resources/font_symbols/mbsymb5/mbsymb5_0032.png down until it engages.

Right headlamp: pull fitting aid resources/font_symbols/mbsymb5/mbsymb5_0032.png up until it engages.

Align housing cover resources/font_symbols/mbsymb5/mbsymb5_0031.png and tighten it until it engages audibly more.

Replacing the bulbs in the IR projectors*

Bulb holder, IR projector

Cable duct, IR projector

Headlamps

	Switch off the lights.
	Open the bonnet.
	Pull housing cover by retaining lug in the direction of the arrow and remove it more.
	Turn bulb holder anti-clockwise until it is released.
	Remove bulb holder .
	Push the two detents on the right and left of bulb holder and pull the bulb from bulb holder .
	Insert the new bulb into bulb holder until it engages.
	Insert bulb holder into the guide in the headlamp.
	Lead output must point down and to the right.
	Turn bulb holder clockwise until it engages.
	Cable duct must point down and to the left.
	Align housing cover and tighten it until it engages audibly more.

Replacing the cornering lamp bulbs

Bulb holder for cornering light

Cable duct for cornering light

Headlamps

	Switch off the lights.
	Open the bonnet.
	Pull housing cover in the direction of the arrow by retaining lug and remove it more.
	Turn bulb holder anti-clockwise until it is released.
	Remove bulb holder .
	Pull the bulb out of bulb holder .
	Insert the new bulb into bulb holder and push it down as far as it will go.
	Insert bulb holder into the guide in the headlamp.
	Left headlamp: cable duct of the bulb holder must be pointing down and to the left. Right headlamp: cable duct of the bulb holder must be pointing up and to the right.
	Turn bulb holder clockwise until it engages.
	Replace housing cover and tighten it until it engages audibly more.