Hella 009108741 - Ignition Knock (Detonation) Sensor

Symptoms of a Failing Knock Sensor

• Check Engine Light or fault code P0325, P0326, P0327, or P0328 displayed on the dashboard
• Engine knocking or pinging noise, especially under acceleration or load
• Reduced fuel economy and sluggish throttle response
• Rough idle or hesitation during gear changes
• Loss of power or difficulty starting the engine
• Engine running in limp mode with reduced performance

Cross Reference Numbers

This Hella 009108741 knock sensor is equivalent to or replaces the following part numbers: LF0218921, 1119941, 30757381, CD3312A699BA, LF0118921, 1S7A12A699BA, 306581800, LR025005, 307573810, 1S7Z12A699BB, 1358032, AJ813101, 064836036010, 106812, KS078, V25721086, 93105, 87494, LKS048, 60232, SEB1462, XKS51, 0907017, 19553, EKS053.

Vehicle Compatibility

This part fits the popular models below. For Fitment Confidence, please use the vehicle selector tool above to verify exact compatibility for your vehicle.

• Land Rover Range Rover Evoque 2.0 L4 Gas (L538): 2012–2017
• Land Rover LR2 2.0 L4 Gas (L359): 2013–2015
• Land Rover Discovery Sport 2.0 L4 Gas (L550): 2015–2017
• Jaguar XF 2.0 L4 Gas (X260): 2013–2015
• Jaguar XE 2.0 L4 Gas and Diesel (X760): 2017

This may also fit other applications. Please use the vehicle selector tool to verify fitment.

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Frequently Asked Questions

How do I know if my Range Rover Evoque or Discovery Sport knock sensor has failed?

The most common sign is a Check Engine Light with knock sensor fault codes (P0325 through P0328). You may also hear engine knock or pinging under acceleration, especially when using lower-octane fuel. If the sensor is faulty, the engine control module cannot properly adjust timing to prevent detonation, which can cause rough running, hesitation, or loss of power. A professional scan tool can confirm the fault code and pinpoint the sensor location.

What is a knock sensor and why does it matter?

A knock sensor is a piezoelectric device that listens for the high-frequency vibrations of engine detonation. When it detects knocking, it signals the engine control module to retard ignition timing and adjust fuel injection, preventing engine damage. Modern turbocharged engines like those in your Evoque or XE depend heavily on knock sensing to safely optimize performance and efficiency. A failed sensor leaves your engine vulnerable to pre-ignition damage.

Can I replace the knock sensor myself, or do I need a professional?

Knock sensor replacement is moderately difficult and varies by model. The sensor is typically located on or near the engine block and requires basic hand tools, a socket set, and sometimes a jack and jack stands for access. You will need to disconnect the battery, remove the sensor connector, and unscrew the sensor from its mounting. After installation, the fault code must be cleared using a diagnostic scanner. If you are not comfortable with electrical connectors or engine bay work, professional installation is recommended.

Is the Hella 009108741 a genuine OEM part or an aftermarket sensor?

Hella is a tier-one automotive supplier that manufactures ignition components for many European OEMs, including Land Rover and Jaguar. This 009108741 sensor meets OE specifications and is widely used by dealerships and independent technicians. It is a quality aftermarket equivalent that offers excellent reliability at a competitive price compared to dealership OEM parts.

Should I replace both knock sensors at the same time?

Many modern turbocharged engines have only one knock sensor, though some have two. If your vehicle has dual sensors and one has failed, it is wise to replace both at the same time to ensure consistent engine management and avoid a second failure shortly after the first repair. Consult your service manual or use the vehicle selector tool to confirm the number of sensors on your specific model.

What fuel octane should I use after installing a new knock sensor?

Always use the fuel octane rating specified in your owner's manual. Land Rover and Jaguar turbocharged engines typically require 91 octane or higher in the U.S. Using lower-octane fuel increases the risk of detonation, which can damage the engine even with a functioning knock sensor. A fresh sensor will restore proper knock detection, but premium fuel is still your best defense against pre-ignition.

Order the Hella 009108741 knock sensor today. In-stock orders ship same or next business day from our U.S. warehouse, and our fitment team is one call away if you need help confirming the right part for your Land Rover or Jaguar.

Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.