Land Rover Discovery 2 L318 Ignition Immobiliser Key Receiver Coil YWI100010

Land Rover Discovery 2 L318 Ignition Immobiliser Key Receiver Coil is a specialized security system component responsible for the proper interaction between the key and the vehicle's immobiliser and ECU. Thanks to its precise OEM design, it ensures stable transponder readings and helps maintain a high level of anti-theft protection. It is a practical solution for users who want to restore full functionality to the starting system in their Discovery 2 in a professional and technically correct manner.

Specifications and technical data

• SKU: YWI100010
• Mark: Land Rover
• Condition: Used
• OEM Part Number: YWI100010
• Substitutable numbers: YWI100010
• Part type: Coil Wire
• Category: Ignition Wires & Coil Boots

Purpose and function in the security system

The ignition immobiliser coil in the Land Rover Discovery 2 L318 is responsible for contactless communication between the transponder in the key and the vehicle's electronics. A properly functioning component of this type:

• enables correct key identification by the security system,
• supports stable engine starting while maintaining anti-theft functions,
• reduces the risk of intermittent starting problems resulting from reading interference,
• ensures consistent operation with the factory vehicle control system.

For Discovery 2 L318 models, using a dedicated immobiliser coil allows for maintaining compatibility with the original electrical architecture and avoiding problems typical of low-quality replacements.

Category: Ignition leads and ignition coil connectors

The presented item belongs to the Ignition leads and ignition coil connectors group, which are components responsible for the correct transmission of signals and energy in critical areas of the electrical installation. In practice, this means that the product has been designed with the following in mind:

• stable operation in the environment of electromagnetic fields generated by the ignition system,
• resistance to typical operational loads in the steering column area and around the ignition switch,
• maintaining proper signal parameters over a long period of use.

Selecting a component from the same functional group as other system components promotes consistency in the operation of the entire electrical system in the Land Rover.

Benefits of using an original Land Rover solution

Using an immobiliser coil dedicated to the Discovery 2 L318 reduces diagnostic and installation time, as the component is structurally matched to the factory ignition switch and wiring harness. In practice, the user gains:

• easier identification and integration with the existing security system,
• preservation of the factory immobiliser logic,
• lower risk of communication errors between the key and the ECU,
• more predictable vehicle behavior after replacing the component.

This solution is particularly beneficial for repairs where the priority is maintaining the original Land Rover electrical configuration without interfering with software or additional system bypasses.

Condition and service application

The offered ignition immobiliser coil is a secondary market component, which makes it an attractive option for optimizing repair costs compared to purchasing a new part. This type of component is particularly useful in situations where:

• there are starting problems related to intermittent key recognition,
• it is necessary to replace a damaged or unstable coil,
• service work is being carried out within the ignition switch and immobiliser system.

Choosing a used OEM component allows for maintaining a favorable cost-to-functionality ratio while matching the specific requirements of the Discovery 2 L318 model.

Expansion of upgrades within the ignition system

If you are planning a comprehensive repair or upgrade of the ignition system area in your Land Rover and need other elements from the same group, such as high-voltage leads, coil connectors, or additional signal harnesses, check the available parts in the Land Rover ignition leads and ignition coil connectors category.

For users interested in a broader perspective on optimizing repair costs using the secondary market, as well as comparing the durability of various engine solutions, the following article may be helpful: Volkswagen 1.9 TDI vs 1.4 TSI – evolution of VW engines and repair costs. It allows for a better understanding of how to consciously choose used components to maintain a balance between budget and vehicle reliability.