Car PIN Code for Anti-theft Mercedes Immobiliser Keyless Relay Attack Protection
Best mercedes immobiliser PIN CODE car immobiliser with app control, proximity tag and valet mode in one unit, for less than many big-name brands. Shop now.
- Brand: LockCar
- Model: CAN-IMMO
- Category: PIN to START Engine Immobilisers
PIN CODE Keyless Mercedes Immobiliser entry makes daily driving easy, but it also makes these cars attractive to relay thieves. This PIN code car immobiliser adds protection without changing how the car feels, using the existing buttons for code entry and staying hidden from view. Please check compatibility for your exact model and year before ordering.
- Hidden CAN bus Mercedes immobiliser: no visible LED, no keypad and no extra ECU on a diagnostic scan
- Released by a PIN sequence on the factory steering wheel buttons, or by proximity tag, smart watch or smart ring
- Designed to stop relay attacks and key cloning, which account for most keyless car thefts in the UK
- Very low current consumption in use, and it can shut down when the car is switched off
- App control, proximity tag and valet mode in one unit, installed reversibly over the CAN network with no cut wiring
Check your Mercedes first
Each Mercedes immobiliser installation must be checked for compatibility with your exact car before purchase. Send us the registration plate number and we will confirm.
Other LockCar immobilisers
Mercedes immobiliser code entry on the buttons you already have
No keypad is added to your Mercedes cabin. The disarm code is entered on the original steering wheel or console buttons, so the interior looks completely standard from outside. Your sequence works offline and does not depend on a phone, a signal or a battery.
- Uses the Mercedes factory buttons, nothing added to the dashboard
- No mobile signal and no app needed to start
- Personal code, change it at any time
- Valet mode built in for garage and service visits
Best value PIN code start on the Mercedes steering wheel
Using a PIN code Mercedes immobiliser takes seconds. Get in, press your personal sequence on the original steering wheel buttons and the engine can start. It looks just like a quick volume change or a scroll through the menu. Without the correct sequence the car stays immobilised, even if the doors were opened with a relayed or cloned key.
- Keeps the interior original. No keypad, fob or screen is added.
- Nothing to spot. No LEDs, beeps or visible parts show that an immobiliser is fitted.
- Stops relay attack and key cloning. A copied or boosted key may unlock the car but cannot start it without your code.
- Your own PIN. The sequence is personal, not a generic factory code.
- Fits your routine. Entering it takes just a few seconds before you set off.
How a Mercedes immobiliser PIN code stops relay attack theft
Keyless ignition on modern cars, Mercedes included, allows thieves to intercept and clone the key signal. LockCar CAN-IMMO stops that cloned signal from starting the engine.
- Hidden and connected to the Mercedes CAN bus
- Refuses to let the engine start on an unauthorised command
- Enables engine start only after the driver enters the PIN sequence
- Triggers the car’s alarm if the PIN is not entered within 30 seconds of ignition on
Proximity tag, smart watch or ring for hands-free release
Pair a Bluetooth proximity tag, smart watch or smart ring and your Mercedes recognises you as you walk up. The immobiliser disarms within the range you set and re-arms when you leave, so the car feels exactly as it did before fitting.
- Proximity disarm adjustable from 1 to 5 metres
- Tag off switch for handing the car to someone else
- App control keeps the phone as master, never an automatic key
- Full authorisation settings managed in the app
Mercedes immobiliser features
Mercedes immobiliser FAQ
Will a Mercedes immobiliser void the manufacturer warranty?
No. It is installed through the vehicle’s CAN data network and critical factory wiring is not cut or modified. The installation is non-invasive and fully reversible, so it should not affect your manufacturer warranty.
Will the immobiliser drain my Mercedes battery?
The immobiliser is designed to work only while the car is awake. Once the vehicle is switched off, it shuts down.
Can a thief find the immobiliser in my Mercedes?
Unlikely. The immobiliser shows no indicators, gives off no RF signal and does not appear as an extra ECU on a routine diagnostic scan. Every installation is concealed in a different place, and without a standard fitting point, locating it in the time a thief has is impractical.
Can I still drive if my phone is dead or has no signal?
Yes. The car never depends on the phone. Release it with your PIN sequence on the original buttons, completely offline, or automatically with the paired tag.
