Automotive replacement part designed to restore accurate headlight levelling on compatible Audi and VW models. Confidence comes from a new, bench-tested unit that plugs into the original harness. Is the PEIUOK Ride Height Level Sensor the dependable front-left fit for your car?
⚡ At a Glance
- • Sensor Function: Detects suspension height changes and signals the headlight levelling system to adjust beam angle
- • Best for: Owners of Audi Q3 (2014-2018) and listed VW models needing a front-left headlight level sensor
- • Not ideal for: Vehicles outside the specified model years or users needing sensors for other mounting positions
Front-left ride height level sensor with a four-pin electrical connector for plug-in fitment. Compatible as a replacement for OE number 3C0412521B and supplied new, 100% tested.
Consistent beam alignment – with OE-compatible wiring and connector
Four-pin electrical interface matches factory harness and transmits precise position signals from the suspension linkage to the headlight levelling circuit. Electrical continuity and connector shape follow the original layout for front-left installation.
Correct beam angle is easier to restore after fitting, improving visibility when carrying passengers or luggage and reducing glare for oncoming drivers.
Straightforward replacement – thanks to matched mounting and part number
Designed as a direct replacement for part number 3C0412521B with mounting points and connector aligned to the original front-left location. Listed fitment covers specific Audi Q3 and several VW models across defined years.
Rapid swap into the existing bracket lowers workshop time and helps ensure the headlight assembly returns to factory alignment without extensive adaptations.
Lower risk of early failure – with new, 100% tested units
Each unit is supplied new and described as 100% tested, indicating pre-delivery verification of electrical function and connector integrity. Packaging quantity is one, intended for single-side replacement.
Greater confidence of reliable operation immediately after installation compared with used parts, reducing the chance of early rework.
✨ The 4 Key Reasons for PEIUOK Ride Height Level Sensor
- 4-pin Connector - Ensures direct plug-in with factory wiring harness and secure connection
- OE Replacement - Matches OE number 3C0412521B for correct headlight mounting and operation
- Front-left Fitment - Designed specifically for the left front headlight position
- Tested New Unit - Delivered new and 100% tested to reduce early failure risk
📋 Technical Details at a Glance
- Category: Ride height/headlight level sensor
- Position: Front left
- Compatible Models: Audi Q3 (2014-2018); VW EOS (2006-2015); VW Golf (2008-2013)
- Compatible Models (continued): VW Passat B6 (2005-2010); VW Passat B7 (2010-2014); Passat CC B6 (2008-2012)
- OE Number: Replacement for 3C0412521B
❓ Frequently Asked Questions
Q: Which vehicles is this sensor compatible with?
A: Compatibility includes Audi Q3 (2014-2018), VW EOS (2006-2015), VW Golf (2008-2013), VW Passat B6 (2005-2010), VW Passat B7 (2010-2014), and Passat CC B6 (2008-2012).
Q: What is the OE reference for this replacement?
A: The unit is listed as a replacement for OE number 3C0412521B.
Q: What are the connector and package details?
A: Front-left orientation with a four-pin electrical connector, supplied new and 100% tested; package quantity is one.
🏆 Our Verdict
Suitable for owners of the specified Audi and VW models who need a direct front-left headlight level sensor replacement. OE-number compatibility, a four-pin plug and a new, tested condition make it a practical choice for restoring headlight levelling. While final value depends on supplier options, the matched fit and pre-delivery testing suggest sensible long-term repair value.
