Headlight Leveling Sensors for BMW X Series E71 (2008-2014)

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Headlight leveling sensors can break and cause an error code and decreased functionality in your BMW. Replace your broken headlight leveling sensor with a replacement piece from Turner Motorsport.
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ECS - Corporate Logo
T#:55353606
Part#: 042121LA03KT
In Stock
New Item
$ 29.99 USD
Free Shipping
$ 29.99 USD
Free Shipping

Over time, road grime, salt, and moisture take a toll on the factory rear leveling rod. The original equipment often corrodes, seizes, and eventually snaps—or worse, binds up and breaks your expensive headlight leveling sensor. With this issue in mind, ECS has engineered a heavy-duty, bulletproof solution designed to outlast the car it’s installed on.

Instead of brittle OE plastic that degrades and snaps over time, this rod is constructed from high-strength, flexible polyurethane. Paired with corrosion-resistant stainless steel ball studs, it guarantees smooth articulation and prevents the binding that destroys expensive sensors. Precision-manufactured for a perfect, bolt-on fit, this upgrade requires zero modifications to replace your fragile OEM unit.

This is a direct-fit replacement for Genuine BMW part number 37146752797, restoring proper suspension-to-sensor geometry so your headlights adjust perfectly to changing loads and road conditions.

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Arnott - Corporate Logo
T#:45997510
Part#: RH-3710
Back Ordered
16% off MSRP $ 74.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 62.99 USD
Free Shipping on orders $49 and up
16% off MSRP
$ 74.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 62.99 USD
Free Shipping on orders $49 and up
Keep your BMW’s adaptive lighting system performing just as it should with this Arnott Headlight Level Sensor. Attached to the suspension, this vital component constantly measures ride height and relays it to the control module—keeping your headlights automatically leveled whether you’re driving alone or fully loaded. When the factory sensor fails, you may notice beams aimed incorrectly, warning lights on the dash, or headlights stuck too high or too low. Arnott’s replacement brings everything back to spec with OE-quality design, direct-fit construction, and simple plug-and-play installation. Why Arnott? Restores lighting precision – Maintains correct beam level and clear road visibility. Exact OE fit – Installs easily without modification. Engineered for durability – Built to handle constant suspension movement and harsh conditions. Don’t put up with poor night visibility or annoying warnings. Regain safety and peace of mind with Arnott’s dependable direct-fit solution.
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