Warnings like “Please Check Right Headlight” can often leave you feeling confused as you look for solutions on what to do next. In this guide, we’ll walk you through options to remove the error, starting with a little background about your specific car. 

The Volkswagen Passat B8 3G Pre-Facelift falls under the eighth generation of the Passat, which was generally well-received by the public. All thanks to its spacious interior, different equipment variants, and new lighting upgrades following the facelift. With its multiple accessories, the Passat is a trusty companion on the road that you can rely on– but with common errors like “Please Check Right Headlight,” it can be hard to do so.

Here, we take a closer look at the affected component from the error code “Please Check Right Headlight.”

What Are LED Headlights?

LED (light-emitting diode) headlights use semiconductors to emit a white, bright light, which is usually preferred for its high visibility on the road. Unlike traditional headlights, LEDs are known for their energy-saving and low-power characteristics. Approximately 80% more efficient than traditional headlights, LEDs lower the strain on the car’s electrical system, which boosts fuel economy. 

Despite their many advantages, LED headlights may stop working for one reason or another, resulting in the warning error, “Please Check Right Headlight.”

What Does “Please Check Right Headlight” Warning Mean?

The error code “Please Check Right Headlight” on your Volkswagen Passat B8 3G Pre-Facelift means that you are dealing with a potential malfunction with your right headlight. A malfunction with your right-side headlight can render it unable to stop working entirely or flicker spontaneously, indicating that it needs a closer look. 

You’ll also find that your dipped beam LED light doesn’t work anymore. With only one headlight working, visibility will be greatly reduced, which could have serious consequences when driving in rural areas with unlit roads. 

To combat this, drivers in the UK may risk a £100 fine by not carrying a spare headlight with them. This can seem like a quick fix, but the right solution begins by understanding the cause behind your headlight failure and how you can avoid it from happening on your next drive. 

Reasons Behind the Warning Message “Please Check Right Headlight”

The main cause behind “Please Check Right Headlight” headlight failure is: 

Faulty Headlight Control Unit: When the main control unit fails or malfunctions, it can prevent the internally linked headlight and other lighting components from functioning entirely. This may compromise road visibility and safety, which is why drivers should slow down or come to a final stop. 

Other potential reasons include a burnt-out bulb or damage to the headlight during an accident, which can be easily resolved with a headlight replacement. 

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Potential Symptoms You May Observe 

A malfunctioning headlight control unit can show potential signs, all of which you need to watch out for: 

Your Volkswagen Passat B8 3G Pre-Facelift may show one of the following warning messages on the dashboard:

  • Veuillez contrôler le projecteur gauche
  • Veuillez contrôler le projecteur droit
  • Check left dipped/main headlight beams!
  • Check right dipped/main headlight beams!
  • Please check left headlight
  • Please check right headlight

The most common VW Volkswagen Polo 6R 6C MK6 GTI warning messages

  • Check Left dipped headlight beam!
  • Check Right dipped headlight beam!

Depending on the malfunctioning control unit side, interconnected parts along with the faulty side headlight may stop working entirely or flicker spontaneously. When you begin to see these signs, a replacement of the faulty control unit is due. 

How To Fix: “Please Check Right Headlight” Warning

To remove the warning message on your dashboard, you’ll need to replace the defective main headlight control unit. Determine the faulty side by swapping between the two headlights and checking whether the error code shifts on the dashboard. If it doesn’t, you may be dealing with a faulty headlight control unit. 

You can also determine which part is faulty by using an OB2D scanner. Our control unit is designed to resolve the following diagnostic codes: If you see any of the following two codes

  • C108515 Left headlamp beam adjusting motor Open Circuit/short circuit to B+
  • B149B01 Right LED headlamp Power Output Stage-Electrical Error

For cases like these, we offer the Mitsubishi Electric W003T25175 VW Ag 7PP941571AC LED Module, which is a power module for main light electronics. Easily factory-fitted into many different Audi and Volkswagen cars with full LED headlamps. If you run into any complications during the installation process, contact our car specialists for professional advice. 

Compatibility List & Part Number

Our module offers a broad compatibility range: 

VW Ag part numbers:

  • 7PP.941.571.AC
  • 7PP941571AC
  • 7PP.941.571.A
  • 7PP941571A

Mitsubishi Electric part number

  • W003T25175

More compatible part numbers

  • 3G0998571 3G0 998 571 3G0998571A 3G0 998 571A
  • 561998571 561 998 571 561998571A 561 998 571A
  • 5NA998571 5NA 998 571 5TA998571 5TA 998 571
  • 5TA998571A 5TA 998 571A 5TA998571B 5TA 998 571B
  • 5TA998571C 5TA 998 571C 5TA998571D 5TA 998 571D
  • 5TA998571E 5TA 998 571E 6C0998571 6C0 998 571
  • 6C0998571A 6C0 998 571A 7E0998571 7E0 998 571
  • 7E0998571A 7E0 998 571A

More compatible Mitsubishi Electric part numbers

  • 7PP.941.571.AE  7PP941571AE W003T25173
  • 7PP.941.571.A 7PP941571A W003T25171
  • 7PP.941.571.AC 7PP941571AC W003T25175 W003T25171
  • 7PP.941.571.AF 7PP941571AF W003T30671
  • 7PP.941.571.AB 7PP941571AB W003T25173

Compatible Volkswagen VW Tiguan AD1 Full LED headlamps

  • 5NB 941 036 B 5NB941036B 030110123200
  • 5NB 941 035 B 5NB941035B 030110123100

Compatible Volkswagen VW Polo MK6 GTI 6R 6C Full LED headlamps

  • 6C2941773A 1LA012034-47
  • 6C2941035A 1LA012034-37
  • 6C2941036A 1LA012034-38
  • 6C2941035 1LA012034-33
  • 6C2941036 1LA012034-34

Compatible Volkswagen VW Crafter MAN TGE 7C Full LED headlamps

  • 7C1.941.035 7C1941035 1EX012830-05
  • 7C1.941.035.C 7C1941035C
  • 7C1.941.036.C 7C1941036C 1EX012830-06
  • 7C1.941.035.B 7C1941035B 1EX012830-05
  • 7C2.941.773.B 7C2941773B 1LX012830-11
  • 7C2.941.773.A 7C2941773A 1LX012830-11

Compatible Volkswagen VW Touran 5T Full LED headlamps

  • 5TB941081A 030129923300
  • 5TB941082A 030129923400

Compatible VW Volkswagen Transporter Caravelle T6 Pre-Facelift LED headlamps

  • 7E2.941.035 7E2941035 90079564
  • 7E2.941.036 7E2941036 90079565
  • 7E2.941.036.A 7E2941036A 90079565
  • 7E2.941.035.A 7E2941035A 90079564
  • 7E2941773
  • 7E2941774
  • Valeo 90085163

Compatible VW Volkswagen Passat B8 3G Pre-Facelift Full LED Headlamps

  • 3G2941036G 90049925

Compatibility list

  • Audi A8 D5 2017 2018 2019 2020 2021 with Matrix headlights
  • Skoda Kodiaq 2017 2018 2019 2020 2021
  • VW Crafter 7C Van 2016-
  • MAN TGE 7C
  • 2017 2018 2019 2020 2021 2022 2023
  • VW Touran MK2 II 2015-
  • VW Tiguan AD1 with Full LED headlights
  • 2016 2017 2018 2019 2020 2021
  • 2.0 TDI 4Motion diesel
  • R-Line
  • VW Polo 6R 6C 2014 2015 2016 2017
  • VW Polo MK6 VI GTI
  • VW Volkswagen Passat B8 3G Pre-Facelift with Static Full LED headlights
  • 2015 2016 2017 2018
  • VW T6 Multivan 2015-
  • VW Volkswagen Transporter Caravelle T6 Pre-Facelift
  • 2.0L 4MOTION
  • 2017 2018 2019 2020