Porsche Boxster 986 911 996 Alarm Sun Light Movement Sensor 99665325100

Porsche Boxster 986 911 996 Alarm Sun Light Movement Sensor is an original security system component designed to work with the factory alarm system in Porsche models. This specialized motion sensor, classified under Lidar and radar sensors, allows for precise monitoring of the vehicle's interior and increases the level of protection against unauthorized access.

Specifications and technical data

• SKU: 99665325100
• Mark: Porsche
• Condition: Used
• OEM Part Number: 99665325100
• Substitutable numbers: 99665325100, 996 653 251 00
• Part type: Window Switch
• Category: Lidar & Radar Sensors

Purpose and function in the Porsche security system

The presented motion sensor is a component of the factory anti-theft system used in Porsche sports models, such as the Boxster 986 and the 911/996 series. Its task is to monitor the cabin space and react to unwanted movement after the alarm is armed. Thanks to its integration with the vehicle's electronics, the sensor works with the central security module, ensuring consistent operation of the siren, immobilizer, and optical signaling.

A solution based on technology from the Lidar and radar sensors group enables sensitive yet stable detection of changes in the monitored zone, which translates into effective protection for a vehicle left in a parking lot, garage, or public space.

Benefits of using an original Porsche sensor

Using an original motion sensor in Porsche cars allows you to maintain the factory logic of the alarm system and proper communication with other modules. This is particularly important in vehicles where security electronics are closely linked to comfort features, central locking, and body control.

• reliable cooperation with the factory alarm and the vehicle's electrical installation,
• preservation of original sensitivity parameters and detection characteristics,
• no need for wiring modifications or additional adapters,
• consistency with the electronic architecture used by the manufacturer.

For Porsche owners who want to keep their car in a configuration close to the factory state, choosing such a component is a technically safe and predictable solution in operation.

Characteristics of the used component

The offered motion sensor is a dismantled, used component, which in the case of original Porsche parts often represents a reasonable compromise between cost and quality. This type of element retains its factory design, and its operating parameters are consistent with the manufacturer's specifications, provided it has been correctly selected for the specific vehicle version.

When choosing a used sensor, it is worth paying attention to compatibility with the part number and any interchangeable numbers. Helpful tips on selecting electronics based on manufacturer markings, as well as practical installation examples, can be found in the guide: Used automotive electronics – how to safely select ECU modules and sensors by OEM numbers.

Selection, compatibility, and installation

For the motion sensor to work correctly with the alarm system in a Porsche Boxster 986, 911, or 996, it is crucial to match it to the specific vehicle equipment configuration. In practice, this means verifying part markings, the car's model year, and the body version. A properly selected component allows for installation in a near plug-and-play mode, using existing mounting points and factory connectors.

When planning a repair or upgrade of the security system, it is also worth considering other components from the same functional group, available in the Lidar and radar sensors{data-blogs=category} category. This allows for a consistent refresh of the system and reduces the risk of subsequent failures resulting from mixing elements with different levels of wear.

Why consider a used OEM part

In the case of premium brands such as Porsche{data-blogs=brand}, used OEM components often offer better compatibility and durability than cheap replacements of unknown origin. The original motion sensor is designed for the specific electrical and software architecture of the vehicle, which minimizes the risk of errors, false alarms, or communication problems on the data bus.

If you are wondering whether a new or used component is a better choice in your case, the comparison described in the article may be helpful: New or used? A comparison of the costs and quality of car parts. There, you will find practical summaries that will make it easier to make a decision based on your budget and expected durability.