Rear Suspension Height Level Sensors (Pair) for Audi A3, Q3, VW Golf MK7, Tiguan, Passat | OEM 5Q0512521G, 5Q0512522F

Rear Suspension Height Level Sensors (Pair) – OEM 5Q0512521G are designed to accurately monitor rear ride height on a wide range of Audi, Volkswagen, SEAT and Škoda vehicles. These sensors measure the position of the rear suspension relative to the vehicle body and transmit real-time data to systems such as automatic headlight leveling, chassis control and stability management. Correctly functioning rear height sensors are essential for maintaining proper ride comfort, safe handling and correct headlight alignment, especially on vehicles equipped with adaptive lighting or advanced suspension systems.

OEM Number: 5Q0512522F, 5Q0512521G

Placement on Vehicle : Rear Left and Right, Driver Side and PAssenger Side

Number of Pins : 4 Pin Connector

Operating Mode : Electric

Voltage : 12V

Quantity : 2

Our SKU: TVW5Q0512522F-12521GPAIR_94

All our Rear pairs of Air Suspension Height Level Sensors are OEM quality and reliable after-market car parts. This Rear Pair Of Air Suspension Height Level Sensors is specifically compatible with Audi: A3, Q2, Q3, Seat: Ateca, Leon, Tarraco, Skoda: Karoq, Kodiaq, Octavia, Superb, VW: Arteon, Golf, Passat, T-Roc, Tiguan, Tiguan Allspace, .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit before purchasing.

If you are still unsure about whether this part is compatible with your vehicle, please supply us with the VIN or Reg number in our live chat or contact form! You can also find details on our purchasing and shipping guide here.

Key Benefits

• OEM Reference Fit: Designed to meet OEM part number 5Q0512521G (often paired with 5Q0512522F), ensuring a direct-fit replacement for compatible VW Group vehicles without modifications.

• Paired Set for Balanced Performance: Supplied as a matching left and right sensor pair, which is ideal when both sides show wear or fault codes.

• Restores Ride Height Feedback: Helps the vehicle’s chassis control and headlight leveling systems receive accurate rear suspension height data, improving stability, comfort and visibility.

• Reduces Fault Codes & Warnings: A worn or failed sensor can trigger dashboard warnings or adaptive system errors — new sensors help eliminate those faults.

• Durable Design: Built to withstand road vibration, suspension movement and environmental exposure typical of rear undercarriage components.

Frequently Asked Questions (FAQs)

Q1: What does a rear suspension height level sensor do?
A: It measures the height of the rear suspension relative to the body and sends this information to vehicle control units — used by air suspension systems and headlight leveling systems to adjust ride height and beam angles correctly.

Q2: Why replace both sensors at once?
A: Replacing both left and right sensors together ensures consistent and balanced feedback, preventing unequal suspension data that can confuse control systems and degrade ride quality.

Q3: Which vehicles use part number 5Q0512521G?
A: This sensor pair fits a range of Volkswagen Group vehicles with rear suspension height control or Xenon/adaptive headlights — including Audi A3, Audi Q3, VW Golf (Mk7), VW Tiguan, VW Passat and many others where 5Q0512521G/5Q0512522F is specified.

Q4: What are symptoms of a failed ride height sensor?
A: Common signs include suspension warning lights, headlight auto-level errors, uneven ride height, loss of air suspension function and diagnostic fault codes.

Q5: Is installation difficult?
A: Sensor replacement involves accessing the rear suspension control arms or mounting points; while doable for experienced DIYers, many owners prefer professional installation to ensure proper sensor calibration and secure connections.