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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
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- 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
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
Restore accurate rear suspension position monitoring and dependable operation of associated vehicle systems with this OE Match Rear Axle Level Sensor. Designed for compatible Porsche applications, this sensor monitors the position of the rear axle and suspension relative to the vehicle body.
Fits:- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- 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
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
029 - Standard Chassis
601 - Xenon Lighting System
603 - Xenon Plus Dynamic Cornering Light
030 - Sports Suspension
031 - Sports Chassis With PASM And PDCC
352 - Electronic Damper Control For PASM And PDCC
475 - "PASM" Electronic Damper Control
477 - PASM W/O Lowering
Diagram Ref No 11
The sensor typically operates through a small mechanical linkage attached to the suspension. As the suspension moves or the vehicle's ride height changes due to passengers, luggage, acceleration, braking or road conditions, the linkage moves the sensor through its operating range. The sensor converts this movement into an electrical signal that can be used by the vehicle's relevant control systems.
Depending on vehicle specification, rear axle level information may be used by systems including automatic headlamp levelling and electronically controlled suspension functions. Accurate position information helps these systems respond correctly to changes in vehicle load and body attitude.
Mounted underneath the vehicle, the sensor and linkage are exposed to water, dirt, road salt, corrosion and continual suspension movement. Linkages can seize or break, while the sensor, wiring or electrical connector may eventually develop faults.
This OE Match Rear Axle Level Sensor provides a high-quality replacement for a damaged, seized, inaccurate or failed original sensor.
What This Product Does:
- Monitors rear suspension/axle position relative to the vehicle body.
- Detects changes in vehicle ride height.
- Converts suspension movement into an electrical signal.
- Sends position information to applicable vehicle control systems.
- Helps compensate for changes caused by passenger or luggage loads.
- Can support automatic headlamp levelling where equipped.
- Can provide information for applicable suspension control systems.
- Helps the vehicle determine changes in body attitude.
- Works through a mechanical linkage connected to the suspension.
- Supports correct operation of systems dependent on ride-height information.
- Replaces a damaged, seized, inaccurate or failed rear level sensor.
- Restores reliable rear axle position feedback when sensor failure is the cause.
Symptoms Of Wear Or Failure:
- Suspension-related warning message.
- Headlamp levelling warning or fault.
- Automatic headlamp levelling not operating correctly.
- Headlamps pointing unusually high or low.
- Headlamp aim failing to compensate for vehicle load.
- Suspension or chassis warning light.
- Ride-height system behaving unexpectedly where applicable.
- Incorrect suspension-height information during diagnostics.
- Implausible level-sensor readings.
- Intermittent level-sensor signal.
- Sensor-related diagnostic fault codes.
- Broken or disconnected sensor linkage.
- Seized linkage joints.
- Bent linkage arm.
- Corrosion around the sensor or linkage.
- Damaged electrical connector.
- Damaged wiring near the rear suspension.
- Physical damage caused by road debris or previous suspension work.
Why Replacement Matters:
- Modern Porsche systems rely on accurate sensor information to make automatic adjustments. If the rear axle level sensor sends an incorrect signal, the relevant control module may receive inaccurate information about the vehicle's suspension position.
- For vehicles equipped with automatic headlamp levelling, this can affect headlamp aim. A heavily loaded rear axle can change the angle of the vehicle body, potentially causing the headlights to point higher than intended. The levelling system uses suspension-position information to compensate for these changes.
- A faulty sensor can therefore contribute to headlights being aimed too high or too low. Incorrectly aimed headlights may reduce useful road illumination or create excessive glare for other road users.
- Where the sensor is also used by suspension or chassis systems, inaccurate ride-height information can interfere with the correct operation or diagnosis of those systems.
- Physical linkage problems are particularly important. A seized or broken linkage can prevent the sensor from following suspension movement even if the sensor electronics remain functional.
Related reference numbers
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99133302104
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