Window lifter for BMW E46 (1998–2005) — OEM part 51358212099 Key benefits Restores reliable up/down window operation so windows move smoothly and consistently. Direct-fit OEM replacement that installs at the original mounting points for a quick, hassle-free swap. Built to OEM specifications for durable performance and long service life in normal driving conditions. Reduces intermittent or unpredictable window behavior and protects regulator components from further wear. What it does Replaces the original window lifter to return stable glass movement and accurate control of the window position. Matches standard E46 lifter dimensions and interfaces with the factory wiring harness and regulator mounting points for plug-and-play fit. Compatibility and fit Fits BMW E46 sedans and coupes from model years 1998 through 2005 configured with the factory window regulator location. OEM part number: 51358212099 — ensures exact fit and correct mechanical/electrical connection when replacing the original unit. Materials and durability Manufactured to OEM specifications using robust components designed to withstand typical automotive conditions. Engineered for consistent performance and long-term reliability under normal use. Installation Designed for straightforward installation using the vehicle’s existing regulator harness and mounting points. Intended as a direct replacement; no modification to the regulator or door structure required when matched to compatible E46 models. Performance improvements Restores smooth, consistent window travel and reduces occurrences of binding, stalling, or intermittent movement. Improves driver and passenger control of the window and reduces the need for repeated repairs. Use scenarios Replace a failing driver or passenger window lifter on a 1998–2005 BMW E46 to regain full window function. Swap during window regulator service or repair to ensure both components are renewed and work reliably together. Preventive replacement on older E46 vehicles to maintain smooth window operation and avoid unexpected failures. Why choose OEM 51358212099 Exact OEM part number ensures precise compatibility and dependable, OEM-level performance without guesswork. Plug-and-play fit minimizes installation time and risk of fitment issues, restoring proper function quickly.