Mercedes Sprinter Rear Brake Pad Wear Sensor – Sadeca | NCV3 | #9065401317 (2007–2018)

A failed or missing rear brake pad wear sensor on a Mercedes Sprinter removes the electronic warning that tells the driver when rear pads are approaching the end of their service life — leaving the van running on worn pads without any dashboard indication until brake performance and rotor condition are already compromised. This is the Sadeca rear brake pad wear sensor for NCV3 Sprinters, a direct replacement that restores accurate rear pad wear monitoring and dashboard warning function.

What This Part Does

The brake pad wear sensor is a resistive wire element embedded in a plastic housing that clips into the brake pad backing plate at the rear axle. As the pad material wears down, the sensor element eventually contacts the spinning brake rotor. That contact erodes the wire, changing its resistance and triggering the brake pad warning light in the instrument cluster. This gives the driver advance notice that pads need replacement before metal-to-metal contact occurs. The sensor is a single-use component — once it has triggered the warning by contacting the rotor, the wire is damaged and the sensor must be replaced along with the brake pads.

Common Symptoms of a Failing or Missing Brake Pad Wear Sensor

• Brake pad warning light illuminated on the dashboard with no other brake system fault
• Warning light that stays on after new pads were installed but the sensor was not replaced
• No warning light when pads are known to be at or near minimum thickness — a sign the sensor has been bypassed or is missing
• Visible damage to the sensor wire or housing during brake pad inspection

When to Replace

Replace at every rear brake pad change — the sensor is a single-use component that must be renewed with every pad replacement. Never reinstall a used sensor; a triggered sensor will illuminate the warning light immediately even with new pads installed, and an old sensor that has not yet triggered provides no guarantee of remaining service life.

NCV3 Specific — VIN Verification Required

This sensor fits NCV3 Sprinters (W906). Always verify by VIN before ordering — brake pad sensor part numbers vary by axle configuration and model year. Contact us and we'll confirm fitment before you buy.

Fitment

• 2007–2018 Mercedes-Benz Sprinter 2500 – Rear axle (NCV3/W906)
• 2007–2018 Mercedes-Benz Sprinter 3500 – Rear axle (NCV3/W906)

✔ Replace at every brake pad service — single-use component
✔ Always verify by VIN before ordering

Part Numbers

• Mercedes OEM: 9065401317 / A9065401317 / 906-540-13-17
• Cross-reference: 2E0906206B
• Manufacturer: Sadeca — BS 1070.01
• SKU: 9065401317S