Sale

Ignitions and Electrical Wiring Components

BMW Genuine Parts

Rear Axle Level Sensor

$217.15 $158.59 Save $58.56

SKU: 37146754921

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The BMW Genuine Parts 37146754921 is a rear axle level sensor for adaptive xenon headlights.

This sensor is a critical component of the automatic headlight leveling system. It ensures proper road illumination by adjusting the headlight angle based on vehicle load and suspension height. Failure of this sensor can lead to improper headlight beam angles, pointing too high or too low, or headlights that do not level at all.
Show original supplier description
The BMW Genuine Parts 37146754921 is a rear axle level sensor specifically designed as an OEM replacement for adaptive xenon headlights. This component plays a crucial role in maintaining the correct vertical aim of your headlights, ensuring optimal road visibility. As part of the vehicle's automatic headlight leveling system, this sensor detects the suspension's vertical position and adjusts the headlight angle accordingly. This dynamic adjustment is vital for proper illumination, preventing headlights from shining too high and blinding oncoming traffic, or too low, reducing visibility. Symptoms of a failing sensor include improper headlight beam angles or a complete lack of leveling functionality. This genuine BMW part is confirmed to fit various BMW X5 models from 2000 through 2006, including the 3.0i, 4.4i, and 4.8is trims. Crucially, it is only compatible with vehicles equipped with 2-axle self-leveling suspension (S221A).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBMW Genuine Parts
Part Number37146754921
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy