2022-2024 BMW iX Hood Open Warning SIB 61 21 24

Owners of 2022-2024 BMW iX models may encounter an erroneous "811 – Stop carefully. Hood open" message displayed on their Check Control System (CCM), even when the vehicle's hood is fully closed. This false indication can be accompanied by a specific fault code, signaling an issue with the engine compartment lid contact switch.

BMW has released Service Information Bulletin SIB 61 21 24 to address this concern, providing a detailed procedure for diagnosis and repair. If you are experiencing this BMW iX hood open warning, it's important to understand the underlying cause and the recommended solution.

Symptoms

The primary symptom is the persistent display of the Check Control message: "811 – Stop carefully. Hood open". This message appears despite the hood being properly latched and closed, indicating a malfunction rather than an actual open hood.

Fault Codes / DTCs

Technicians investigating this BMW iX hood open warning will likely find the following diagnostic trouble code (DTC) stored in the Body Domain Controller (BCP) module:

Code	Description
80415B	Engine compartment lid contact switch: Line fault or faulty

Cause

The root cause of the false hood open warning and fault code 80415B is corrosion. Specifically, corrosion affects the pin contacts within connector X149*1B. This corrosion can lead to fluid ingress, disrupting the electrical signals from the engine compartment lid contact switch.

Repair Procedure Summary

To resolve the BMW iX hood open warning and associated fault code, BMW Service Information Bulletin SIB 61 21 24 outlines a specific repair procedure:

1. Initial Check: Verify that the hood is completely closed and that there are no obstructions in the engine compartment that might prevent it from latching correctly.
2. Message Confirmation: Confirm if the "811 – Stop carefully. Hood open" message is still displayed. If the message persists, proceed with further diagnostics. If it is no longer present, a road test is recommended to ensure the issue is resolved.
3. Corrosion Inspection: Technicians will inspect the wire harness plug connector X149*1B, the washer fluid level sensor (B17), and, if equipped, the Control electronics of washer pumps (A666) for any signs of corrosion.
4. Component Replacement: If corrosion is identified, any leaking components and those saturated or corroded by washer fluid must be replaced. The wiring harness may also require repair.

This repair is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks, using Repair Code 6166014800.

Required Parts

Depending on the specific vehicle equipment and the extent of the corrosion, the following parts may be required for the repair. Technicians will use the VIN/chassis number with ETK or AIR systems to determine the exact part numbers needed.

Part Number	Description	Quantity
61 66 5 A0A A58	Washer fluid reservoir	1
12 52 7 590 358	X149*1b Connector housing (BUCHSENGEH. 15-POL MCON1,2/2,8 ELA KOD.B)	1
Refer to ETK/AIR	Wiring harness front end	1
61 35 5 A32 0C2	Control unit sensor cleaning (Washer Pump control Unit)	1

Owner Action

If your 2022-2024 BMW iX is displaying the "811 – Stop carefully. Hood open" message, it is recommended to schedule an appointment with an authorized BMW service center. They have the necessary tools and expertise to diagnose the issue, confirm fault code 80415B, and perform the repair as outlined in SIB 61 21 24. This repair is typically covered under warranty.

NHTSA ID: 11008117