2021-2024 BMW X5 Daytime Running Light Dim or Discolored TSB

BMW has released Service Information Bulletin SIB 63 04 18, Revision 6, to address concerns regarding dim or discolored LED daytime running lights in various models, including the 2021-2024 BMW X5. This bulletin, which supersedes SI B63 04 18 dated March 2023, provides updated information on the correction, parts, and claim procedures for this issue.

Symptoms

Owners may observe that one or more of their LED daytime running lights are dim or discolored. This can affect the vehicle's appearance and potentially its visibility to other drivers. If you notice your BMW X5 daytime running light dim, this bulletin likely applies to your vehicle.

Cause

The root cause of the "DAYTIME RUNNING LIGHT IS DIM OR DISCOLORED" issue is a damaged connection between the LED module and the light tube located inside the headlight assembly. This internal damage prevents the LED module from illuminating the light tube effectively, leading to the dimness or discoloration.

Diagnosis

To diagnose the problem, technicians will first remove the affected LED modules from the headlight assembly, following ISTA repair instructions specific to the vehicle model. The LED module will then be 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 signs.

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

BMW emphasizes that only the affected LED module should be replaced if the internal damage is confined to the light tube. The defect code associated with this issue is 6312356700, labeled as "Daytime running lights LED discoloration."

Important Warnings

Technicians are advised that they should only replace the headlight assembly if internal damage is found to the light tube. Replacing the entire assembly when only the LED module is faulty will not resolve the underlying issue and is an unnecessary repair. Additionally, certain components like the Control unit Frontal Light Electronics, LED turn signal module, and LED module daytime driving lights are not included with a replacement headlight assembly and must be swapped over or replaced separately if needed.

Warranty Information

This repair is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. Labor operations for diagnosis include 63 99 000 (Inspecting the LED modules) and 00 58 500 (Diagnosis Worktime Flat Rate). Specific labor operations for replacing LED modules (e.g., 63 11 730, 63 11 734) and headlight assemblies are also provided in the bulletin. For proper documentation and claiming, centers should refer to SI B01 01 20 or B01 07 20.

Required Tools or Parts

Specific part numbers for the LED module, daytime driving lights, and headlight LED AHL high left or right are determined by entering the VIN/chassis number into BMW's ETK or AIR systems. This ensures the correct parts are ordered based on the vehicle's specific equipment and options. This is crucial if your BMW X5 daytime running light dim issue requires parts replacement.

---

NHTSA ID: 10252031