Dealing with warning issues on your own can be stressful– especially when they don’t disappear by restarting your Audi Q2 SQ2 GA Pre-Facelift. In this guide, we’ll help you identify the root cause,  potential symptoms, and the next steps you’ll need to take to remove the error from your dashboard. 

To address the error, one needs to understand the inner workings of their vehicle. 

Introduction to Audi Q2 & SQ2 GA 

Audi introduced two subcompact luxury SUVs that rapidly became trendsetters for their unique exterior and spacious design. Both Audis share the same MQB platform but bring distinct characteristics to the table, including unique lighting system features. 

The Audi Q2 employs an ambient LED lighting system that projects differently colored light into the car depending on the time of day. Whereas the SQ2 (GA) is equipped with standard LED headlights that have distinctive DRLs and LED rear lights, but upgrades to advanced Matrix LED headlights. This standardized version is to highlight the efficiency of LED bulbs, which last longer and emit a brighter, whiter light than traditional halogen bulbs. 

Their efficiency has set them as a standard in automotive lighting, making them an asset for Audi models. However, these advanced components are also responsible for common warning errors like: “Left/Right Dipped Headlight Defective.” 

What Does “Left/Right Dipped Headlight Defective” Mean?

When the warning error, “Left/Right Dipped Headlight Defective” comes on, it indicates that the affected headlight is experiencing a fault. To verify which side, you’ll need to conduct a visual inspection of the failed side, as the warning message fails to specify precisely which side has failed. 

You may also see these common Audi Q2 SQ2 GA Pre-Facelift warning messages

  • Left dipped headlight defective. See Owner's Manual
  • Right dipped headlight defective. See Owner's Manual

When either of these warning messages appears, both the headlights and dipped beams won’t work properly or flicker spontaneously. This can significantly compromise your safety and reduce your visibility, making it difficult for oncoming traffic and pedestrians to see you. 

Reason Behind Malfunction 

The main culprit behind the “Left/Right Dipped Headlight Defective Malfunction” is a faulty LED headlight control unit. This often occurs due to moisture ingress or when the module has reached the end of its life. 

Other potential causes include:

  • Lifespan degradation, such as burnt-out bulbs.
  • External damages due to accidents. 

Irrespective of the reason behind the warning, you may experience common symptoms that will persist until the error is resolved. 

Potential Symptoms You May Experience 

When you come across the warning error on your Audi Q2/SQ2, you may experience the following symptoms: 

  • The affected side beam lights won’t work 
  • Warning messages on the dashboard
  • Interconnected components may also fail to work 

These symptoms will continue to persist until the error is resolved, making it crucial to address the situation promptly. 

How To Fix “Left/Right Dipped Headlight” Warning Message 

Follow these steps to effectively remove the warning message from your dashboard. 

First, you’ll need to perform a visual inspection of the front of the headlights. Look for burnt-out filaments and charred bulbs. In this case, all you’ll need to do is replace the bulb to get your headlight back in working order. If you see no physical signs of damage, it’s advised to take a deeper look. 

The next step involves taking a look at the LED control module, typically behind the headlight, to check for any signs of corrosion. Leave either side of the module in and verify if the warning message continues to illuminate. If it does, a replacement of the faulty LED module is due. Our Mitsubishi Electric W003T30571 7PP941572AF LED Module is a power module and is factory fitted to Audi, VW, and Porsche cars with Matrix Leimo LED headlights.

After replacement, diagnostic coding is required to resolve the error and prevent it from appearing on the dashboard. Without it, the computerized system will fail to recognize whether the error has been resolved. 

Parts & Compatibility List 

This module is compatible with a range of vehicles: 

  • VW Ag part numbers:
    • 7PP.941.572.AF
    • 7PP941572AF
  • Mitsubishi Electric part number:
    • W003T30571
  • Compatible Audi Q2 SQ2 Pre-Facelift Full LED headlamps
    • 81A941034A 90083601
    • 81A941033A 90083600
    • 81A941034B 90083597
    • 90083603v
  • Compatibility list:
    • Audi Q2 SQ2 GA 2017-
    • Audi Audi Q5 FY 2017
    • Audi Audi Q5 FY Sportback 2018 -
    • Audi Audi RS3 Sportback 8V 2017 -
    • Volkswagen Volkswagen Arteon 3H 2017-