Smart Key (incl. LCD) & Replacement Keys

Key programming, spare keys, lost key solutions and supported LCD smart keys.

1) Replacement Key

If you lost your key (or need a spare), we provide a replacement that matches the original — not only in the look, but also inside: housing, PCB/electronics and transponder chip (depending on the system). We program it to your vehicle and test all functions.

  • OEM-style shell & button layout (brand-matched)
  • Matched electronics: PCB + transponder chip (system dependent)
  • Programmed & tested: lock/unlock, range and start authorization
We build and program a compatible Smart Key based on your vehicle system and the available options.
• Key housing and design matched to OEM style
• Correct PCB/remote electronics + transponder type
• Programming + functional testing (lock/unlock, range, start authorization)
• Final compatibility depends on vehicle generation and control unit
OEM Mercedes key example
OEM/Stock key (Mercedes – example)
OEM Audi key example
OEM/Stock key (Audi – example)
OEM BMW key example
OEM/Stock key (BMW – example)

2) Upgrade to Push-Start / LCD Smart Key

Upgrade from a classic remote key to a modern LCD Smart Key setup — including comfort features (vehicle/kit dependent).

  • Unlock / Lock / Trunk / Remote Start-Stop (kit dependent)
  • PKE (Keyless Entry) optional with the right hardware
  • Clean integration & full function test
Mercedes upgrade from classic key-start to a modern Push-Start/LCD Smart Key setup (package may vary).
• New key design + modern remote functions
• Push Start/Stop button installation (if supported)
• Optional PKE / auto-lock / comfort features depending on the kit
• Clean integration and full test on the vehicle
Before: old Mercedes key (example)
Old Mercedes key (example)
New system: Smart key functions
New key (modern design)
New system: complete package
Complete package (modules + wiring)
New system: push start button
Push Start/Stop + Auto lock (PKE)

3) OEM Stock Key → LCD Smart Key (Upgrade)

If your current key already has remote lock/unlock, an upgrade to an LCD Smart Key is often possible — even for older stock keys. Final options depend on the vehicle, control unit and key type.

Upgrade from older OEM/stock keys to LCD Smart Key models (multiple designs possible).
• We check which LCD Smart Key models are supported for your platform
• Transfer/learn functions and synchronize with the vehicle
• You can choose from several LCD key styles (depending on availability)
• Final options depend on vehicle, system and key type
Stock key example 1
Stock key (example)
Stock key example 2
Stock key (example)
Stock key example 3
Stock key (example)
LCD smart key example 1
LCD Smart Key (model example)
LCD smart key example 2
LCD Smart Key (model example)
LCD smart key example 3
LCD Smart Key (model example)

4) Process & Technical Check

We verify frequency, transponder type, immobilizer and available comfort functions first. Then we program the new key and test everything on the vehicle.

  • Compatibility check & diagnostics
  • Programming & synchronization
  • Final test (buttons, range, start authorization)
Our process ensures the key works reliably and matches your vehicle system.
• Compatibility check: frequency, transponder type, immobilizer data
• Programming and synchronization (key + comfort functions)
• Final test: buttons, range, start authorization
• We use original tools (e.g., Xhorse VVDI Key Tool Plus, Autel MaxiSYS Ultra)
Xhorse VVDI Key Tool Plus (Original)
Xhorse VVDI Key Tool Plus (Original)
Transponder chip
Transponder chip
Key Programming & Vehicle Access
Key Programming & Vehicle Access
Universal Smart LCD Key (CF920/CF920FM)
Universal Smart LCD Key (CF920/CF920FM)

What we can do

Smart Key Upgrade — OEM‑compatible, clean integration

Diagnosis • Programming • Synchronization • Final test — incl. comfort features (vehicle-dependent)

Professional integration
System sync & key learning
Tested on vehicle