Replacing bulbs

On the Mercedes E-Class (4th generation, W212, 2009–2016), replacing bulbs involves important safety information to avoid injury or damage. Especially for LED and Intelligent Light System lamps, it is recommended to have the bulb replaced by a specialist workshop. This keeps the lighting system in perfect condition.

Important Safety Notes

WARNING

Bulbs, lamps and connectors can become very hot during operation. When you replace a bulb, you can burn yourself on these components. Risk of injury!

Let these components cool down before replacing the bulb.

Vehicles with static LED headlights:

Do not use a bulb that has been dropped or whose glass envelope is scratched.

The bulb may burst if

• you touch it
• it is hot
• you drop it
• you scratch or score it.

Operate bulbs only in closed lamps designed for them. Use only replacement bulbs of the same type and with the specified voltage.

Stains on the glass envelope reduce bulb life. Do not touch the glass envelope with bare hands. If necessary, clean the glass envelope with alcohol or methylated spirits when cold and wipe it with a lint-free cloth.

Protect bulbs from moisture during operation. Do not allow bulbs to come into contact with liquids.

Only replace the specified bulbs.

Have bulbs that you cannot replace yourself replaced at a qualified workshop.

If you need assistance replacing bulbs, contact a qualified workshop.

If the new bulb also does not light, visit a qualified workshop.

Lamps and lighting units are an essential part of vehicle safety. Make sure they always work. Have the headlight aim checked regularly.

Vehicles with Intelligent Light System:

The front and rear lighting units of your vehicle are equipped with LED light sources. Do not replace the light sources of your vehicle yourself. Contact a qualified workshop that has the necessary expertise and tools to carry out the required work.

The lighting units are an essential part of vehicle safety. Make sure they always work. Have the headlight aim checked regularly.

Bulb replacement overview – bulb types

You can replace the following bulbs. The bulb types are listed in the legend.

Static LED headlight

	High beam: H7 55 W
	Turn signal: PSY 24 W

Replacing front bulbs

High beam (static LED headlight)

Switch off the lighting system.

Open the hood.

Fit the housing coverturn counterclockwise and remove.

On the grip extension, turn the socketcounterclockwise and pull it out.

Remove the bulb from the socketpull.

Insert the new bulb into the socket.

The socketinsert and turn clockwise.

Fit the housing coverand turn it clockwise.

Turn signal (static LED headlight)

Switch off the lighting system.

Open the hood.

Fit the housing coverturn counterclockwise and remove.

The socketcounterclockwise and pull it out.

Remove the bulb from the socketpull.

Insert the new bulb into the socket.

The socketinsert and turn clockwise.

Fit the housing coverand turn it clockwise.

The Mercedes E-Class W212 (model years 2009–2016) places great emphasis on safety when replacing bulbs. Detailed instructions and safety warnings help prevent injury and damage to the vehicle.

Thanks to well-designed solutions, many bulbs can be replaced easily, while for more complex systems such as the Intelligent Light System, a qualified workshop should be consulted.

Question: Why should LED lights not be replaced by the owner?

Answer: Because special expertise and tools are required and the system is part of vehicle safety.

Question: What should be observed when handling bulbs?

Answer: Do not touch the glass envelope with bare hands, and clean any contamination before installation.