(SR/02106/25)

Date: April 14, 2025 (Effective Date) Subject: Safety Recall of DS3 Crossback Passenger Cars due to EBS Valve Block Defect Source: Safety Gate Alert (SR/02106/25) - Notifying Country: France

1. Executive Summary:

This briefing details a safety recall initiated by France concerning specific DS3 Crossback passenger cars manufactured between May 25, 2024, and June 6, 2024. The recall, identified by company code NS9, addresses a critical defect in the Electronic Braking System (EBS) valve block. This defect, stemming from incomplete aluminum casting around the valves, poses a significant risk of injury due to potential brake fluid leaks, deactivation of stability control, and complete loss of brake control functions. The product fails to comply with EU regulations on motor vehicle approval and market surveillance. The manufacturer has initiated a recall of the product from end users.

2. Key Information and Facts:

• Alert Number: SR/02106/25
• Notifying Country: France
• Product Category: Motor vehicles
• Product Type: Passenger car
• Brand: DS automobiles
• Model: DS3 Crossback
• EC-type approval/model: e22007/460639*31
• Production Dates of Affected Vehicles: May 25, 2024 - June 6, 2024
• Company Recall Code: NS9
• Country of Origin: France
• Date of Entry into Force (Recall): April 14, 2025

3. Risk Description - Nature of the Defect and Potential Consequences:

The core issue lies within the EBS valve block, specifically concerning its construction:

• Manufacturing Defect: "The aluminium of the EBS valve block may not fully cast around the valves." This indicates a fundamental flaw in the manufacturing process of a critical braking component.
• Internal Brake Fluid Leak: This incomplete casting can lead to "an internal leak of brake fluid (from one or more of the 12 valve seats)." This internal leakage is the root cause of subsequent system failures.
• Reduction of Fluid Level and Stability Control Deactivation: The leak results in "a reduction of the fluid level and the deactivation of stability control due to damage to the pressure sensor." A compromised fluid level directly impacts braking performance, and the deactivation of stability control significantly reduces vehicle handling and safety, especially in adverse conditions.
• Complete Loss of Control Functions: Critically, the leaked brake fluid can "come into contact with the printed circuit board and result in the deactivation of all control functions (including the anti-lock system and electronic brake force distribution)." This outcome is severe, as it implies a complete failure of modern braking assistance systems, potentially leading to a total loss of braking effectiveness and control for the driver.
• Risk Type: Injuries. The described failures directly increase the risk of accidents and, consequently, injuries to vehicle occupants and others.