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OE Numbers: 650451
About SONAX
Direct Fit: OE-style design for easy installation
5L6 BMW 325Ci 2001–2006 2
0L6 BMW 335i xDrive 2009–2010 3
HELLA Front Brake Pad Wear Sensor camshaft OE Numbers: 650451HELLA front brake pad wear sensor for Audi A8 models. Provides early warning when pads are worn. Replaces OEM part 4H0615121B. Key Features & Benefits OE Replacement: Direct fit for Audi A8 D4. Warning Light: Alerts driver before rotor damage occurs. Single Use: One sensor needed per axle. Cross Reference: Replaces 4H0615121B, 355252471, MWI0551. Vehicle Fitment Make Model Years Audi A8 20102018 Technical Specifications OEM Cross Reference 4H0615121B,