Description
OEM part number 3449688 fits the BMW X3 E83 (2003–2010) as an LM II LWR Light Module with integrated headlight levelling control. LWR stands for Leuchtweitenregelung, the automatic headlight range regulation system. This is a genuine used unit, fully inspected and tested before dispatch.
The LM II LWR manages automatic headlight range adjustment, actuating levelling stepper motors in the headlight assemblies in response to vehicle load and pitch sensor signals. This ensures the headlight beam angle remains compliant and safe under varying load conditions. The module also handles general lighting switching functions.
A defective LM II LWR typically causes headlights to remain fixed at a single angle rather than adjusting automatically, and may trigger headlight range error messages in the instrument cluster. BMW diagnostic tools will log relevant fault codes.
Verify the OEM number against your vehicle before purchase. Professional installation is strongly recommended. BMW ISTA coding is required after fitting, and headlight levelling sensor calibration may also be necessary. Returns accepted within 14 days.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
