SLK - Interactive Owner's Manual

Changing the bulbs

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.)

Main-beam headlamp

H7 55 W

Turn signal lamp

PY 21 W

Dipped-beam headlamp

H7 55 W

(Vehicles with halogen headlamps)

or

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.)

Front foglamp

or

Cornering light*

HB4 55 W

or

H7 55 W

Side lamp/parking lamp

W 5 W

Rear bulbs

 

Bulb

Type

Turn signal lamp

PY 21 W

Brake/rear lamp

LED

Licence plate lighting

C 5 W

Reversing lamp

P 21 W

Rear foglamp

P 21 W

Third brake lamp

LED

Before changing bulbs

You can replace the following bulbs:

  • Dipped-beam headlamps (vehicles with halogen headlamps)

  • Main-beam headlamps (vehicles with halogen headlamps)

  • Side lamp and parking lamp

  • Turn signal lamp (front)

  • 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

Housing cover for dipped-beam headlamp (halogen/bi-xenon headlamps)
Bulb holder for turn signal
Bulb holder for main-beam headlamp
Bulb holder for side/parking lamps

Halogen or bi-xenon* headlamps

Bulb holder for dipped-beam headlamp

Halogen headlamps

Replacing dipped-beam headlamps (vehicles with halogen headlamps)

  

Switch off the lights.

  

Open the bonnet.

  

Turn housing cover  anti-clockwise and remove it.

  

Turn bulb holder anti-clockwise and remove it.

  

Pull the bulb out of bulb holder .

  

Insert the new bulb into bulb holder .

  

Insert bulb holder  into the lamp and turn it clockwise.

  

Align housing cover  and turn it clockwise.

Replacing main-beam headlamps (vehicles with halogen headlamps)

  

Switch off the lights.

  

Open the bonnet.

  

Turn bulb holder anti-clockwise and remove it.

  

Pull the bulb out of bulb holder .

  

Insert the new bulb into bulb holder .

  

Insert bulb holder  into the headlamp and turn it clockwise.

Changing the bulbs in the side lamps and parking lamps

  

Switch off the lights.

  

Open the bonnet.

  

Pull out bulb holder with the bulb.

  

Pull the bulb out of bulb holder .

  

Insert the new bulb into bulb holder .

  

Insert bulb holder  into the lamp.

Replacing the turn signal lamps

  

Switch off the lights.

  

Open the bonnet.

  

Turn bulb holder  anti-clockwise and remove it together with the bulb.

  

Unscrew the bulb from bulb holder

  

Insert the new bulb into bulb holder .

  

Insert bulb holder  into the headlamp and turn it clockwise.

 

Changing the rear bulbs

Changing the tail lamps

Rear foglamp
Turn signal lamp
Reversing lamp

Tail lamps

  

Switch off the lights.

  

Open the boot lid.

  

Open the cover of the tail lamps to the side.

  

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.

  

Close the cover of the tail lamps.

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 .