How do daytime running lights (DRL) work in the Golf 7?

The History of Daytime Running Lights (DRL)

Daytime running lights (DRL) were introduced to increase vehicle visibility on the road. The first country to make them mandatory was Sweden in the 1970s. In the following decades, other European countries gradually began introducing similar regulations. In the European Union, the requirement to install DRL on new vehicles came into effect on February 7, 2011.

Principle of operation of DRL lights

Daytime running lights are special vehicle lighting that automatically turns on when the engine is started. They are brighter than sidelights but less intense than low beams. Their primary purpose is to improve vehicle visibility during the day, which translates into increased road safety.

Types of daytime running lights in the Golf 7

The Volkswagen Golf 7 can be equipped with different types of DRL lights, depending on the equipment version:

• Traditional halogen bulbs – an older solution that offers good visibility but is less energy efficient.

• LED lights – modern technology used in higher equipment versions, characterized by longer life and lower energy consumption.

• Dynamic lights – option available in versions with adaptive headlights, changing the intensity and angle of illumination depending on road conditions.

Advantages of using DRL lights

• Improving safety – increased vehicle visibility reduces the risk of collision.

• Lower energy consumption – especially in the case of LED lights, which consume less power than low beam lights.

• Automatic activation – DRL lights operate independently of the driver, eliminating the risk of forgetting to turn them on.

• Modern look – vehicles equipped with LED DRLs look more modern.

How to activate and deactivate DRL in Golf 7?

In the Volkswagen Golf 7, daytime running lights are usually enabled by default. You can turn them on or off by:

• Multimedia system menu – in newer models, DRL can be deactivated in the vehicle settings.

• Light switch – on some versions you can control the DRL using a manual switch.

• Computer coding – using the VCDS diagnostic interface you can change the light settings.

Comparison of LED and Halogen Technology in DRL

Technology	Energy consumption	Vitality	Brightness	Cost
Halogen	High	Short	Mean	Short
LED	Low	Long	High	Medium/High

The most common problems and how to solve them

1. Burnt out DRL bulbs – replace the bulb with a new one that complies with the vehicle specifications.

2. LED lights flickering – may be caused by a problem with the control module or a mismatched electrical installation.

3. Malfunction after software update – sometimes reconfiguration via the diagnostic interface is necessary.

Replacing and modernizing DRL lights in the Golf 7

Replacing the DRLs on your Golf 7 depends on the vehicle model and the headlight technology used. The upgrade may include:

• Replacing halogens with LEDs – requires the purchase of compatible LED bulbs and possible system coding.

• Installation of dynamic lights – requires advanced modification of the lighting system.

• Software change – some functions can be activated by coding the controller.

Legal regulations regarding DRL lights in Poland

In Poland, the obligation to use daytime running lights was introduced in 2007. The key regulations are:

• Mandatory use of lights 24 hours a day – drivers can use low beam or DRL.

• Homologation conditions – DRLs must meet the technical standards specified in EU regulations.

• Ban on using DRL at night – these lights do not replace dipped beam headlights and cannot be used after dark.

Summary

Daytime running lights (DRL) in the Golf 7 are a crucial element in improving driving safety and comfort. The choice between halogen and LED depends on user preference and budget. Thanks to automatic activation, drivers don't have to worry about turning the lights on, and modern LED solutions allow for energy savings and a longer lifespan. It's also worth remembering applicable regulations and regularly checking the lighting's efficiency.