Citroen Jumper / Relay Mileage Blocker
The Citroen Jumper / Relay Mileage Blocker (2007–2024) is a vehicle-specific plug-in module that connects behind the instrument cluster without cutting, soldering, or coding. It offers two selectable modes. In its active mode, mileage recording is stopped completely; a final mode returns the vehicle to normal operation. The speedometer reads correctly in all modes. After removal, use of the device is not detectable through diagnostics.
Select your vehicle options
Not sure which variant fits? Send us your car details before ordering — we'll confirm the right fit.
Include your vehicle make, model, model year or generation, and a photo of the instrument cluster if possible.
"Works exactly as described — fitted in under 15 minutes and does exactly what it says on the tin. Very happy with the quality."
— Doel N. · Verified buyer
Not sure which variant fits?
Send us your car details before ordering — we'll confirm the right fit.
Include your vehicle make, model, model year or generation, and a photo of the instrument cluster if possible.
"Ordered mine and it arrived quickly. The installation guide was clear and the unit works perfectly. Great UK support too."
— Joseph G. · Verified buyer
Delivery & peace of mind
DHL & FedEx tracked shipping12 months warranty30-day returnsKey features
- Vehicle-specific wiring harness — built for the Citroen Jumper / Relay's exact connector layout; where possible we use OEM-style connectors for a factory-quality fit.
- Plug & Play installation — no cutting, soldering, or coding required; connects behind the instrument cluster in minutes.
- Complete mileage stop in active mode — mileage recording is stopped entirely while the device is active; the speedometer continues to read correctly.
- Fully removable — remove cleanly at any time; no mileage catch-up occurs and use is not detectable through diagnostics after removal.
- Persistent mode memory — the active mode is retained between ignition cycles; no need to reactivate each time.
- Control during testing — the device can be activated and deactivated while stationary or in motion during permitted off-road testing, giving full flexibility over when mileage recording is paused.
Operation & Functional Modes
Flash the high beams 4 times in quick succession.
How it works
Every modern vehicle uses a CAN-bus network — a high-speed digital communication system that links the engine control unit, instrument cluster, gearbox, ABS, and dozens of other modules. Distance data travels across this network continuously, and the instrument cluster reads those signals to update the odometer.
The Citroen Jumper / Relay Mileage Blocker installs in-line on the specific CAN-bus line that carries distance pulses toward the instrument cluster. It intercepts those signals at the wiring level — before they reach the cluster — and, depending on the selected operating mode, suppresses them entirely or reduces them to a set percentage.
The device uses vehicle-specific, original-type connectors and fits entirely within the existing wiring loom. No wires are cut, no soldering is required, and no coding or software changes are made to the vehicle. Removing the device restores the vehicle to its exact factory state.
Because the device operates at the physical wiring layer — not through the OBD-II port or any software interface — its presence cannot be detected by standard diagnostic equipment. It leaves no trace in the vehicle's fault memory and does not trigger any warning lights. The device retains the last selected mode between ignition cycles.
Important information
This product is designed for off-road, motorsport, dyno testing and vehicle development use. It should not be used to alter the recorded mileage of any vehicle being offered for sale. Please ensure your use is in accordance with the laws that apply in your country.
Compatible variants
Choose the matching model year, generation and any listed instrument-cluster, connector or equipment option before ordering. If the correct version is unclear, contact support before purchase.
- Citroen Jumper / Relay [3rd Gen] (2007 - 2013)
- Citroen Jumper / Relay Facelift [3rd Gen] (2014 - 2024)
Specifications
Compatibility & installation
Use the fitting instructions for your vehicle and device version. Contact us before ordering if you need clarification about compatibility or installation.
Delivery & Returns
Shipping
Contact us for delivery options, dispatch times and return conditions. Warranty: 12 months.
Returns & Warranty
Warranty: 12 months warranty
Returns window: 30 days from delivery
Return method: By post — return shipping costs apply
Full details are in our returns policy.