Service Bulletin

2022 BMW i4 Electrical System Fuse Issue

A manufacturer communication for the 2022 BMW i4 addresses an incorrect fuse assignment in the compressor circuit. The vehicle may have a 30A fuse (F227) where a 40A fuse (F229) is required for proper protection.

Byeditor sarah mitchell2022 BMW i4
2022 BMW i4 — 2022 BMW i4 manufacturer_communication
Editorial illustration generated for this article.
102149862022 BMW i4BMW i4 electrical systemBMW i4 compressor circuitBMW i4 fuse slot F227BMW i4 fuse slot F229BMW i4 incorrect fuseBMW i4 30A fuseBMW i4 40A fuseBMW i4 manufacturer communication

What's the Issue?

Owners of the 2022 BMW i4 should be aware of a specific electrical system concern identified in NHTSA Manufacturer Communication 10214986. This communication highlights an incorrect terminal assignment within the vehicle's electrical system. Specifically, the compressor circuit, which is crucial for various vehicle functions, is protected by a 30A fuse located in slot F227.

However, the correct and required fuse for this circuit is a 40A fuse, which should be assigned to slot F229. This discrepancy means the compressor circuit may not have the appropriate level of electrical protection.

Why This Matters

An incorrectly sized fuse, particularly one that is undersized, can lead to several problems. A 30A fuse protecting a circuit designed for a 40A fuse may blow prematurely under normal operating conditions, leading to unexpected loss of function for components connected to the compressor circuit. While a blown fuse prevents potential damage to the wiring, it can also cause inconvenience and unexpected vehicle behavior. This 2022 BMW i4 manufacturer_communication addresses a fundamental safety and operational concern.

Repair Procedure Summary

The resolution for this issue involves correcting the fuse assignment. Technicians need to ensure that the compressor circuit is properly protected with the correct 40A fuse in slot F229, replacing the incorrectly assigned 30A fuse in slot F227. This procedure ensures the electrical system operates as intended, providing reliable protection for the compressor circuit and related components.

Important Information for Owners

This information comes from a manufacturer communication, not a recall notice. While BMW is not directly notifying consumers about this specific 2022 BMW i4 manufacturer_communication, it is an important detail for vehicle maintenance. If you own a 2022 BMW i4 and have concerns about your vehicle's electrical system or experience any related issues, it is advisable to contact your authorized BMW service center. They can check for applicable service bulletins and ensure your vehicle has the correct fuse configuration.

NHTSA Citation

This information is based on NHTSA Manufacturer Communication 10214986.

Frequently Asked Questions

What is the problem with the 2022 BMW i4's electrical system?
The 2022 BMW i4 may have an incorrect 30A fuse (slot F227) protecting its compressor circuit, when a 40A fuse (slot F229) is actually required for proper circuit protection.
What are the potential consequences of the incorrect fuse in my BMW i4?
An undersized 30A fuse in the compressor circuit could blow prematurely, leading to unexpected loss of function for components connected to that circuit. This could cause inconvenience or affect vehicle operation.
How is the compressor circuit fuse issue resolved for the 2022 BMW i4?
The resolution involves replacing the incorrect 30A fuse in slot F227 with the correct 40A fuse in slot F229, ensuring the compressor circuit has suitable electrical protection.
Will BMW notify me about this manufacturer communication?
Typically, manufacturers do not send direct consumer notifications for manufacturer communications like NHTSA ID 10214986. It's recommended to discuss this with your BMW service center during your next visit if you have concerns.

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