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Electronic Damper Control
By OE Match
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- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
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This Headlight Level Sensor is a replacement electronic sensor engineered to replicate the original Porsche ride height/level sensing component used in the headlight levelling system. It is designed for direct installation in compatible Porsche 911 (991), Boxster (982) and Cayman (982) models to work with automatic headlight levelling systems.
Fits:
Porsche 718 Boxster - 2017 Onwards
Porsche 718 Cayman - 2017 Onwards
Porsche 991.1 / 991.2 - 2012 to 2019
Porsche 991 turbo - 2017 to 2020
Diagram ref no 17
The headlight level sensor detects changes in the vehicle’s suspension height and sends accurate position data to the headlight control module. This enables the automatic headlight levelling function, allowing the headlights to adjust their beam angle based on load and vehicle pitch - helping maintain optimal illumination and preventing glare to other road users.
Mounted to the front suspension/ride height linkage, the sensor reads positional changes and converts them into electronic signals. The control module uses this data to raise or lower the headlight beam dynamically, ensuring consistent light alignment regardless of load, acceleration, or inclination. It supports safer night driving by keeping beams properly aligned.
A faulty headlight level sensor can lead to inconsistent beam aim, poor night visibility, dashboard warnings, or disabled levelling functions. Replacing a worn or failed sensor restores correct feedback to the headlight control system, maintaining proper beam alignment and ensuring safe, predictable nighttime lighting performance.
When to replace:
• Headlights won’t auto-adjust when load changes
• Levelling warning or fault codes on the instrument cluster
• Beam angle appears too high or low under load
• After suspension work / sensor linkage removal
• As preventive maintenance when replacing related sensors or heads
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99134302101
The product you are viewing cross references to these numbers
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The OE MATCH Rear Axle Level Sensor is a genuine suspension monitoring component designed to measure rear suspension position and vehicle ride height. This sensor provides critical data to the vehicle's suspension, chassis control and headlamp levelling systems.
Fits:
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
Diagram Ref No 18
Mounted to the rear suspension assembly, the level sensor continuously monitors suspension movement and transmits real-time ride height information to the vehicle's control modules. This data allows systems such as air suspension, adaptive chassis control and automatic headlamp levelling to make precise adjustments, ensuring optimum vehicle balance, handling stability and driving comfort.
What This Product Does:
- Monitors rear axle ride height and suspension position.
- Provides real-time data to chassis and suspension control systems.
- Supports air suspension and ride height adjustment functions.
- Assists automatic vehicle levelling systems.
- Provides input for automatic headlamp levelling.
- Helps maintain correct vehicle stance and balance.
- Contributes to ride comfort and handling stability.
- Supports the operation of advanced electronic suspension systems.
Symptoms Of Wear Or Failure:
- Suspension warning lights illuminated on the dashboard.
- Air suspension fault messages.
- Uneven vehicle ride height.
- Rear of the vehicle sitting too high or too low.
- Vehicle leaning to one side.
- Incorrect headlamp alignment.
- Suspension failing to adjust ride height correctly.
- Fault codes relating to level sensors or chassis systems.
- Reduced ride comfort and handling performance.
- Physical damage or corrosion of the sensor linkage.
Why Replacement Matters:
- Rear axle level sensors operate in a harsh environment where they are exposed to water, dirt, road salt, vibration and constant suspension movement. Over time, the sensor mechanism, linkage arms and electrical connections can become worn, corroded or damaged, resulting in inaccurate ride height measurements.
- A faulty level sensor can prevent the suspension system from maintaining the correct vehicle height and balance, affecting handling, ride quality and tyre wear. It may also compromise automatic headlamp levelling and place additional strain on air suspension compressors and control components.
- Replacing a worn or defective rear axle level sensor restores accurate ride height monitoring and ensures proper operation of the vehicle's suspension and levelling systems.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99133303
The product you are viewing cross references to these numbers
OEMatch Electronic Damper Control — Control, Stability, Comfort
Electronic damper control systems adjust damping characteristics in real time to match road surface, speed and load. This collection of replacement actuators, control modules, valves and sensors is prepared for Porsche applications and intended to restore adaptive suspension responsiveness, improve ride quality and maintain predictable chassis behaviour.
Available Types
- Actuators
- Control modules (damping ECUs)
- Valves and hydraulic components
- Sensors and wiring connectors
Understanding OEMatch Electronic Damper Control
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original electronic damper control.
OE (Original Equipment) refers to parts matching original specifications for the electronic damper control and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM electronic damper control engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Electronic damper control coordinates sensors, actuators and a control unit to vary damping force across the chassis. Sensors monitor wheel movement, body acceleration and steering inputs and the control unit commands valves or actuators to change damping rates, reducing body motion while preserving handling balance. Correct component condition is essential to sustain intended performance and vehicle safety.
Benefits Include
- Restores adaptive suspension function and more consistent ride comfort
- Improves handling stability and steering response
- Reduces inconsistent damping and the likelihood of system fault warnings
Why Electronic Damper Control Wear and Fail
- Corroded or damaged actuator connections and terminals
- Sensor failure from moisture, vibration or contamination
- Hydraulic leaks, worn valves or internal damper wear
- ECU faults, wiring degradation or intermittent communication errors
The Importance of Replacing with OEMatch Electronic Damper Control
Replacing worn or faulty electronic damper control components helps retain consistent damping response and reduces the risk of fault indications or degraded handling. For Porsche models, correct components support the intended chassis dynamics and passenger comfort; timely inspection and replacement also limit secondary wear to mounts, tyres and other suspension items.
Advantages
- Direct-fit alternatives engineered to match original dimensions and tolerances
- Selected for Porsche applications to align with factory sensor interfaces and mounting points
- Suitable for maintenance, restoration and selected tuning tasks