2021 BMW 430i Headlight Condensation TSB SIB 63 02 22

BMW has released Service Information Bulletin SIB 63 02 22 (Revision 2), which supersedes the previous SI B63 02 22 dated September 2022. This bulletin details a common issue of excessive condensation in the headlights of certain BMW models, including the 2021 BMW 430i. The update provides revised information regarding the affected models, production dates, cause, correction, procedure, and parts.

This repair is classified as both mobile-friendly and remote software upgrade (RSU) friendly, indicating flexibility in how the service can be performed.

Symptoms

Owners of affected vehicles may observe "Excessive condensation in one or both headlights." This 2021 BMW 430i headlight condensation can be a persistent issue.

Important Warnings

BMW emphasizes that condensation can be a normal characteristic of headlights under certain environmental conditions. Technicians are advised to familiarize themselves with SI B63 05 16, which provides guidance on assessing headlight condensation. Crucially, "Do not make repairs to vehicles which do not have excessive condensation per SI B63 05 16." This prevents unnecessary repairs on vehicles where condensation is within normal operating parameters.

Cause

The root cause of the excessive 2021 BMW 430i headlight condensation has been identified as faulty headlight ventilation grommets. These grommets may allow excessive moisture to enter the headlight assembly, leading to the condensation issue.

Repair Procedure Summary

To correct the excessive 2021 BMW 430i headlight condensation, the repair involves replacing both headlight ventilation grommets with an updated part. The general procedure is as follows:

1. Verify the Concern: The technician will first confirm the customer's complaint regarding headlight condensation.
2. Access Headlights: The wheel arch trim panel must be removed from both sides of the vehicle. This step follows repair instructions found in ISTA/AIR document 51 71 038.
3. Remove Old Grommets: Using a suitable tool, the outer ventilation grommets are removed from both headlights.
4. Install New Grommets: Updated plugs (ventilation grommets) are then installed on both headlights. It is critical to ensure that these new grommets are fully seated onto the headlight assembly.

Required Parts

For this repair, the following part is required:

• Part Number: 63 17 6 938 430
• Description: Ventilation grommet
• Quantity: 2 (one for each headlight)

Warranty Information

This repair for headlight condensation, identified by defect code 6312365000, which is labeled as "Headlight fitting Water ingress / condensate," is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. Labor operations for diagnosis include 63 00 009* and 00 58 500*. Repair labor operations include 51 71 038, 51 71 538, 51 99 000, and 63 99 000. Technicians should refer to SI B01 01 20 or B01 07 20 for applicable procedures regarding documenting and claiming work time.

Affected Models and Production Dates

This Service Information Bulletin applies to various BMW models produced prior to March 1, 2022. These include 4 Series Coupe (G22), 4 Series Convertible (G23), 4 Series Gran Coupe (G26), M3 Sedan (G80), M4 Coupe (G82), and M4 Convertible (G83). Newer or later LCI (Life Cycle Impulse) models are not affected by this particular issue.

What Owners Should Do

If you own a 2021 BMW 430i and are experiencing excessive headlight condensation, it is recommended to contact your authorized BMW dealership. They can diagnose the issue according to SIB 63 02 22 and perform the necessary repair under warranty.

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Source: NHTSA ID 11017571