How to turn on daytime running lights (DHO) on the ŠKODA Octavia A5: 3 proven ways

Daytime running lights (DRL) on ŠKODA Octavia A5 Not just a style element, but also an important safety component. According to the traffic rules of the Russian Federation (paragraph 19.5), the use of DRL or passing beam headlights is mandatory in daylight hours. However, on some versions Octavia A5 (especially pre-facelift or basic trim levels) this feature may be disabled by default or work incorrectly. In this article, we will discuss all possible ways to activate DHO - from simple settings in the onboard computer to deep encoding through a diagnostic scanner.

It is important to understand that the method of inclusion depends on the year of issue and the complete set of your car. For example, on models since 2009 (facelift), DHOs are often implemented through LED modules in block headlights, whereas on earlier versions (2004–2008) dimensions or low-brightness passing light can be used. We will look at universal solutions, as well as nuances for specific modifications, including: Octavia A5 FL and Scout.

1. Checking the presence of DRLs on your Octavia A5

Before you try to turn on daytime running lights, make sure they are installed on your car at all. Nana ŠKODA Octavia A5 DHO can be implemented in three ways:

• 🔦 LED modules Built into block lights (typical for restyled versions after 2009). Visually, they look like thin stripes or dots under the main optics.
• 💡 Side lights In early models, DHOs are often emulated through front dimensions (incandescent lamps or LEDs).
• 🌟 Lower brightness near-light Some versions use ambient light at 30-50% of the power (implemented software).

To determine the type of DHO:

1. Stop the engine and turn on the ignition (position ON).
2. Check if small lights in the front optics are lit when the near-light is off.
3. If the lights light up only when you turn on the dimensions - you have an emulation through the dimensions. If individual LEDs are burning, these are regular DHOs.

Note: On Octavia A5 xenon headlamps DRLs are often integrated into the block headlamp and activated automatically when the ignition is turned on. If you have xenon, but DHOs do not work, the problem is more likely in the settings or wiring.

2. Turning on DRL via the on-board computer (the easiest way)

If your Octavia A5 computer-equipped MAXIDOT or Columbus (depending on the year of release), try activating DRL through the settings menu. This method works on most models after 2008.

Instructions:

1. Turn on the ignition (no need to start the engine).
2. Click the button MENU on the steering switch or on the panel of the onboard computer.
3. Go to section Settings → Lighting (or Lighting on English firmware).
4. Find an item Daytime running lights (Daytime Running Lights) and set the value On (ON).
5. Save the settings and check the DHO work.

Make sure ignition is on (ON)| Check the current version of the firmware BC| Record the current lighting settings (in case of reset)| Check DRL with the near light off-->

If item Daytime running lights No menu, that means one of two things:

• ⚡ Your on-board computer does not support DHO management (typical for the base versions before 2007).
• 🔧 DRLs are down at level control unit coding (diagnostic scanner required).

⚠️ Attention: On some Octavia A5 after activation of the DRL through the menu, conflicts may arise with automatic turning on the passing beam (function) Coming Home/Leaving Home). If after setting the DRL, the passing light is turned on spontaneously - an adjustment is required through VCDS or ODIS.

3. Activation of DRL via diagnostic scanner (VCDS, OBDeleven, Carista)

If the standard settings do not allow to include DHO, you will need to lighting-coding (09 – Cent. Elect.). This requires a diagnostic adapter and software:

• 🖥️ VCDS (VAG-COM) - official diagnostic software VW Group (paid, but most reliable).
• 📱 OBDeleven - mobile application for Android / iOS (there is a free version with restrictions).
• 🔧 Carista - an alternative for iOS / Android (supports basic settings DHO).

Step-by-step instructions for VCDS:

1. Connect the adapter to the diagnostic connector OBD-II (located under the steering wheel, to the left of the brake pedal).
2. Run the program VCDS and select a model ŠKODA Octavia A5.
3. Go to block 09 – Cent. Elect. (Central Electronics).
4. Select Coding – 07 (Coding)
5. In the field Long Coding Helper Find the byte responsible for DHO (usually) Byte 18 or Byte 20).
6. Activate the bit responsible for Daytime Running Lights (The exact bit number depends on the version of the software - see WEB ) (see table below).
7. Save the changes and restart the control unit (turn off/turn on the ignition).

Year of issue	Byte encoding	Bit for DHO	Value (HEX)
2004–2007 (pre-facelift)	Byte 18	Beat 4	Add +10 current-value
2008–2010 (restyle)	Byte 20	Bit 0	Add +01 current-value
2011–2013 (FL)	Byte 20	Bit 1	Add +02 current-value

Critical! On Octavia A5 with control units 1K0 937 08x (early versions) activation of DHO through encoding may lead to conflict with the function Automatic Light Control (automatic lighting of the headlamps). In this case, additional byte configuration is required. Byte 17 (Responsible for lighting priorities)

4. Manual connection of DRLs (if they are not included in the package)

If your Octavia A5 It is not equipped with regular DHOs, they can be installed independently. This will require:

• 💡 LED modules DHO (for example, Hella LEDayFlex or Osram LEDriving).
• 🔌 Switching relay 4- or 5-pin, depending on the scheme.
• 🔧 Wires of 0.75-1.5 mm2 cross-section and shrink tubes.
• 🛠️ Fuse on 5-10 A (depends on the power of the LEDs).

Connection diagram:

1. Connect +12V from the battery through the fuse to contact 87 relay
2. Contact 85 Connect the relay to the mass (GND).
3. Contact 86 connect to +12V from the ignition lock (so that the DHOs work only when the ignition is turned on).
4. Contact 30 Connect the relay with the plus wire DHO, minus - on the weight of the body.

For automation (enabled DRL at engine start-up), you can use a signal with contact 15 (ignition) or 50 (starter) Connection scheme through pin 15:

Battery (+) → Safety → Contact 87 relay
Relay pin 85 → Ground
Contact 86 relay → Contact 15 (ignition)
Contact 30 relay → DHO (+)
DRL (–) → Body weight

⚠️ Attention: When installing LED DHO power more than 10 W be sure to use cooling radiators Overheating of LEDs leads to their degradation and fire danger. Also check that the DHO is consistent. GOST R 41.48-2004 (Brightness 400-800 candelas, color temperature 5000-6500 K).

5. Common problems and their solutions

After activation or installation of the DRL on Octavia A5 The following failures may occur:

Problem	Possible reason	Solution
DRLs won't turn on	Incorrect block encoding 09	Check the bytes 18 and 20 in VCDS
DRLs are dim	Low voltage or poor mass contact	Check the voltage at the DRL terminals (should be 12-14 V)
DRLs flash or flicker	Poor contact or faulty relay	Replace relay, check connections
Conflict with low beam	Incorrect setting Coming Home	Disable Coming Home in the block 09 or adjust your priorities

If after coding the DRLs work, but a warning lamp on the instrument panel indicates an error, follow these steps:

1. Connect VCDS and go to the block 09 – Cent. Elect..
2. Select Fault Codes – 02 (Error codes).
3. Remove any lighting related errors (eg Bulb for Daytime Running Light).
4. If the error appears again, check the DRL power supply circuit or return the original coding.

What should I do if the dimensions stop working after coding?

If, after activating the DRLs, the side lights stop working, most likely the byte responsible for their priority has been changed. Return the original byte value 18 or 20 (depending on the model) and repeat the coding, activating only the bit for the DRL. On some versions Octavia A5 Dimensions and DRLs cannot work simultaneously - this is a limitation of the control unit firmware.

6. Legal aspects of using DRLs in Russia

According to Traffic rules of the Russian Federation (clause 19.5), during daylight hours all moving vehicles must have the following on:

• 🔆 Daytime running lights (DRL), or
• 💡 Low beam headlights, or
• 🌍 Fog lights (only instead of DRLs or low beams).

Requirements for DRL are regulated by GOST R 41.48-2004:

• 📏 Location: no higher than 1.5 m and no lower than 0.25 m from the road level, no further than 0.4 m from the outer edge of the car.
• 🔦 Brightness: 400–800 candelas (for LED modules).
• 🎨 Color: white (color temperature 5000–6500 K).

Penalty for failure to use DRLs or low beams during daytime - 500 rubles (Part 1 of Article 12.20 of the Code of Administrative Offenses of the Russian Federation). However, in practice, traffic police inspectors often limit themselves to warnings if the lights do not work for a technical reason (for example, a lamp has burned out).

⚠️ Attention: If you installed the DRLs yourself, make sure they are certified and comply with GOST. When passing a technical inspection, the inspector may require documents for lighting devices. Uncertified DRLs (for example, Chinese modules without markings) may cause refusal to issue a diagnostic card.

7. Comparison of DRL activation methods: what to choose?

Method	Difficulty	Cost	Suitable for	Risks
Via on-board computer	⭐ (simple)	0 ₽	Octavia A5 with MAXIDOT/Columbus (2008–2013)	Doesn't work on earlier versions
Encoding via VCDS	⭐⭐ (average)	500–2000 rubles (adapter)	Any versions, including pre-facelift	Coding errors can damage block 09
Installation of external DRLs	⭐⭐⭐ (difficult)	2000–8000 rubles (set + work)	Cars without standard DRLs	Loss of headlight seal, risk of short circuit

Optimal choice depends on your Octavia A5 configuration:

• 🔹 If you have restyled version (2009–2013) with an on-board computer - start with the settings in the menu.
• 🔹 If DRL yes, but don't work - use VCDS for encoding.
• 🔹 If DRL physically absent — install LED modules with a certificate.

FAQ: Frequently asked questions about DRLs on the ŠKODA Octavia A5

❓ Is it possible to enable DRL on Octavia A5 2005 without VCDS?

On earlier versions (before 2007), standard activation of DRLs through the menu is not possible. Alternative ways:

1. Install external DRLs with connection to the ignition.
2. Use emulation through dimensions (but this does not comply with GOST).
3. Contact the service to flash the unit 09 (requires soldering work).

Without VCDS or similar scanner, software activation is not possible.

❓ Why did the turn signals stop working after turning on the DRL?

This is a typical problem on Octavia A5 with control units 1K0 937 08x. The reason is a conflict of priorities between the DRLs and the turn indicators, which often use the same circuits. Solutions:

• Return the original coding and activate the DRL via a separate relay.
• Update unit firmware 09 to a version that supports separate circuits.
• Install resistors (100–200 Ohms) in the turn signal circuit to stabilize the voltage.

❓ How to check that DRLs are working correctly?

To check:

1. Turn on the ignition (do not start the engine).
2. Make sure the DRLs are on and the low beams and headlights are off.
3. Measure the voltage at the DRL terminals (should be 12-14 V).
4. Check the brightness with a light meter or compare visually with other cars (should be brighter than the dimensions, but dimmer than the low beam).

If the DRLs flash while the engine is running, there is a problem with the voltage regulator or a bad ground.

❓ Can fog lights be used instead of DRLs?

According to traffic regulations, fog lights allowed use instead of DRLs or low beams in the daytime. However, there are nuances:

• 🔸 Fog lights must be turned on front only (rear PTF cannot be used).
• 🔸 Power and color must comply with GOST (white or yellow light, brightness not lower than 200 candelas).
• 🔸 In some regions, traffic police inspectors may interpret this as a violation if PTFs are not certified as DRLs.

It is better to use standard DRLs or low beams to avoid controversial situations.

❓ Why do the DRLs turn off when I turn on the low beam?

This normal behavior on most Octavia A5. DRLs are designed to work only in daytime conditions and automatically turn off when:

• 🔦 The low or high beam turns on.
• 🌃 The mode is activated Automatic Light Control (in low light conditions).
• 🚗 The fog lights turn on (on some versions).

If DRL don't turn off when you turn on the low beam - this is a sign of incorrect block coding 09. You need to return the original settings.