2024 BMW Daytime Running Lights Dim or Discolored SIB 63 04 18

BMW has released Service Information Bulletin (SIB) 63 04 18, Revision 7, which supersedes the previous SI B63 04 18 dated March 2024. This bulletin addresses a common issue where the LED daytime running lights (DRLs) on several 2024 BMW models, including the BMW X5, appear dim or discolored. The update includes new models added to the affected vehicle list.

Symptoms

Owners may notice that "One or more of the LED daytime running lights are dim or discolored." This visual defect can impact the vehicle's appearance and potentially its visibility to other drivers.

Cause

The root cause of the dim or discolored daytime running lights is identified as a damaged connection between the LED module and the light tube located inside the headlight assembly. This internal damage prevents the DRLs from illuminating properly.

Diagnosis and Trigger Conditions

To diagnose the issue, technicians will first remove the affected LED modules from the headlight assembly, following specific ISTA repair instructions for the vehicle model. The LED module is then inspected for signs of discoloration. If discoloration is present on the LED module, the light tube within the headlight will also be inspected for similar damage.

Repair Procedure Summary

The repair procedure outlined in SIB 63 04 18 depends on the extent of the damage:

• If discoloration is present only on the LED module: The affected LED module will be replaced. This is done according to ISTA/AIR repair instructions specific to the vehicle model.
• If discoloration is present on both the LED module AND the light tube: Both the complete headlight assembly and the LED module will be replaced. This comprehensive replacement also follows ISTA/AIR repair instructions.

Required Tools or Parts

Specific part numbers for replacement components are determined by entering the vehicle's VIN or chassis number into BMW's ETK or AIR systems. These systems identify the exact parts needed based on the vehicle's equipment and options. Key components that may need replacement include the "LED module, daytime driving lights" and, if necessary, the "Headlight LED AHL high left or right."

It is important to note that for some models, certain components like the Control unit Frontal Light Electronics, LED turn signal module, and LED module daytime driving lights (the item addressed in this SIB) may not be included with a replacement headlight assembly. These items may need to be swapped over from the original assembly or replaced separately if required.

Defect Codes

The defect code associated with this issue is 6312356700, which is labeled as "Daytime running lights LED discoloration." This code is used for claiming warranty repairs related to this specific problem.

Warranty Information

This repair for the dim or discolored daytime running lights is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. Owners should contact their authorized BMW dealer for diagnosis and repair.

Owner Action

If you observe that your 2024 BMW X5 daytime running lights dim or are discolored, you should schedule an appointment with your local authorized BMW dealer. The dealer will perform the necessary inspection and repair as per BMW Service Information Bulletin SIB 63 04 18. This issue is covered under warranty, so there should be no cost to the owner for the repair.

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Source: NHTSA ID: 11017572