Mercedes W169 W245 Front Hood Bonnet Lock Latch Catch Switch Sensor A1698700051

Mercedes W169 W245 Front Hood Bonnet Lock Latch Catch Switch Sensor is a precision component of the front hood security system, responsible for reliably monitoring the hood's closed status. As part of the Hinges, locks, and other hood parts group, the sensor works with the vehicle's electrical system, providing accurate information for comfort and safety systems. Using an original component allows for a technically correct replacement of a damaged sensor without interfering with the body structure.

Specifications and technical data

• SKU: A1698700051
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1698700051
• Substitutable numbers: A1698700051, A 169 870 00 51, KD
• Location on the vehicle: Front
• Category: Hinges, Latches & Additional Bonnet Components

Purpose and function of the hood lock sensor

The offered sensor is designed for installation in the front of the vehicle, in the area of the hood lock, where it is responsible for detecting the closed position. A properly functioning sensor transmits a signal to the onboard control units, which is important for, among other things, the operation of lighting, systems informing the driver about an unlatched hood, and selected comfort functions. Thanks to a design tailored to the specific body series, installation is straightforward, maintaining factory mounting points.

Benefits of using an original Mercedes component

Choosing a hood lock sensor dedicated to Mercedes vehicles allows you to maintain consistency with the factory electrical and mechanical installation. The original housing geometry and the correct electrical connector reduce the risk of leaks, looseness, or communication problems with control modules. A used element from this group is a particularly favorable solution in situations where the existing sensor has suffered mechanical damage or has stopped correctly reporting the status of the hood lock.

Vehicle placement and installation aspects

The sensor operates in the front zone of the body, in the immediate vicinity of the hood lock, which requires resistance to variable operating conditions – temperature fluctuations, moisture, or road debris. The design prepared for factory mounting points facilitates service, and access to the element after opening the hood allows for efficient replacement in workshop conditions. Using a component from the same assembly group minimizes the risk of needing to modify the wiring harness or brackets.

Application in workshop practice

In workshop practice, the hood lock sensor is most often replaced after front-end collisions, due to corrosion of lock components, or in the event of messages appearing about an unlatched hood despite it being physically closed. A used, functional sensor represents a rational compromise between repair cost and maintaining the proper functionality of vehicle systems. Replacing this element is often one of the key stages in restoring the full efficiency of the hood locking system after body and paint repairs.

Expanding repairs within the Mercedes hood area

If you are planning a comprehensive repair or upgrade of the hood area in your Mercedes and need other elements from the same group, such as locks, guides, or additional mounts, check out the available parts in the Mercedes hinges, locks, and other hood parts category.

Technical support and knowledge about used parts

When selecting used body components and elements that work with the electrical system, it is worth being guided not only by price but also by structural compatibility and service history. In the context of the entire vehicle, material describing the principles of choosing used components may be helpful – you can find more practical tips in the article "Used gearbox – when is it worth it and what you need to remember", which discusses the approach to purchasing parts from the secondary market, compatibility issues, and the cost-effectiveness of repairs.