SL - 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 carry a high voltage. You could get an electric shock and be seriously or even fatally injured if you touch the electric contacts on xenon bulbs. Therefore, never remove the cover from 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.

Overview

Front bulbs

	Bulb	Type
	Additional turn signal lamp	LEDs (These bulbs must be replaced at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre.)
	Turn signal lamp	PY 24 W
	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.)
	Main-beam headlamp	H7 55 W
	Side lamp/parking lamp	W 5 W (Blue Vision)
	Cornering light* (Vehicles with Intelligent Light System*.)	H7 55 W
	Front foglamp	H11 55 W

Rear bulbs

	Bulb	Type
	Rear foglamp	P 21 W
	Third brake lamp	LED
	Reversing lamp	P 21 W
	Brake/rear lamp	LED
	Licence plate lighting	C 5 W
	Turn signal lamp	PY 21 W

Before changing bulbs

You can replace the following bulbs:

Main-beam headlamps
Side lamp and parking lamp
Replacing the cornering light* (vehicles with Intelligent Light System*)
Reversing lamp
Rear foglamp
Turn signal (rear)
Licence plate lighting

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

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Housing cover for main-beam headlamps/side lamps/parking lamps/cornering light*

(Vehicles with Intelligent Light System*.)

Headlamps

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Bulb holder for side/parking lamps

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Bulb holder for main-beam headlamp

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Cable outlet for main-beam headlamp

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Bulb holder for cornering light*

Headlamps

Replacing the bulbs in the main-beam headlamps

	Switch off the lights.
	Open the bonnet.
	Turn housing cover anti-clockwise and remove it.
	Pull out bulb holder .
	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 .
	Insert bulb holder into the guide in the headlamp.
	Turn bulb holder clockwise until it engages.
	Left headlamp: cable duct of bulb holder must be pointing down and to the right. Right headlamp: cable duct of bulb holder must be pointing down and to the left.
	Pull out bulb holder .
	Align housing cover and turn it clockwise.

Changing the bulbs in the side lamps and parking lamps

	Switch off the lights.
	Open the bonnet.
	Turn housing cover anti-clockwise and remove it.
	Pull out bulb holder .
	Pull the bulb out of bulb holder .
	Insert the new bulb into bulb holder .
	Insert bulb holder .
	Align housing cover and turn it clockwise.

Replacing the cornering light* (vehicles with Intelligent Light System*)

	Switch off the lights.
	Open the bonnet.
	Turn housing cover anti-clockwise and remove it.
	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 .
	Insert bulb holder into the guide in the headlamp.
	Turn bulb holder clockwise until it engages.
	The handle of bulb holder must be horizontal.
	Align housing cover and turn it clockwise.

Changing the rear bulbs

Changing the tail lamps

Reversing lamp

Driver's side: rear foglamp

Front-passenger side: spare bulb

Turn signal lamp

Tail lamps

	Switch off the lights.
	Open the boot lid.
	Open the side trim panel more.
	Turn the bulb holder anti-clockwise and remove it.
	Turn the bulb anti-clockwise, applying slight pressure, and remove it from the bulb holder.
	Insert the new bulb into the bulb holder and turn it clockwise.
	Insert the bulb holder and turn it clockwise.
	Make sure that you hear the bulb holder engage.
	Close the side trim panel more.

Replacing the licence plate lamp

Screws

Licence plate lighting

	Switch off the lights.
	Open the boot lid.
	Remove screws .
	Remove licence plate lamp .
	Replace the bulb.
	Insert licence plate lamp .
	Replace and tighten the screws .