Mercedes-Benz W221 EIS Key Programming Service - SK_TECH_LAB Mercedes-Benz W221 EIS Key Programming Service
Professional Mail-In & Plug & Play Key Programming Solutions by SK_TECH_LAB
🛠️ Service Overview
- Service Type: Mail-In Key Programming Service for Mercedes-Benz W221 EIS / EZS (Electronic Ignition Switch) modules.
- Hardware Notice: This listing is for the programming service and 2 new keys only. We do not supply the physical EIS/EZS module.
⚠️ Important Note: If you are unsure whether your EIS/EZS module needs programming or repair, please message us your VIN number and photos of your EIS label via messages before placing your order. 🚗 Vehicle Compatibility & Options
- Supported Model Range: Mercedes-Benz S-Class (W221 Chassis) including S350, S400, S550, S600, and S63 AMG.
- Plug & Play Setup: Once programmed, your EIS and 2 keys are returned fully tested—simply reinstall the module and start your vehicle immediately.
- Mail-In Convenience: Safe, fast, and secure bench-programming solution without needing the entire vehicle at our shop.
📦 Simple 4-Step Process 1 Place Order
Purchase the service to receive our secure shipping address.
2 Ship Parts
Mail your original W221 EIS module safely to our facility.
3 Same-Day Work
We program and benchmark-test your 2 new keys the day it arrives.
4 Fast Return
Your module and 2 programmed keys are shipped back next business day.
⏱️ Handling Time Notice: This listing displays an extended handling time to comply with policies for mail-in services. Processing and turnaround begin immediately after we receive your physical EIS module.
