Hella 355250501 Rear Disc Brake Pad Wear Sensor

The Hella 355250501 is a rear disc brake pad wear sensor engineered as a direct OE-replacement component for the BMW M3 (E46 chassis, 2001–2006). Manufactured in Germany, this sensor replaces BMW OE part number 34352229780 and is designed to deliver precise, reliable low-pad alerts consistent with original factory performance.

Disc brake pad wear sensors are a critical safety component. When brake pad friction material wears down to the minimum safe threshold, the sensor's embedded contact wire is exposed to the rotor surface, triggering the brake pad warning light on the dashboard. The sensor must be replaced whenever the brake pads are changed or whenever the warning light has been activated.

Key Features:

• Rear axle position — sold as a single sensor
• OE replacement for BMW part number 34352229780
• Country of origin: Germany (DE)
• Engineered to meet or exceed original equipment specifications
• Activates the brake lining warning light at the correct pad wear threshold
• Single-use component — must be replaced with every brake pad service

Hella is a globally recognized OE supplier to major European automakers, and their brake wear sensor program covers a broad range of BMW, Mercedes-Benz, Volkswagen, and other European vehicle applications. The 355250501 is part of Hella's dedicated wear sensor product line, designed to precisely match the requirements of specific brake systems and driving profiles.