Every listing in this shop is a send-in postal service. Once ordered, we email you packing instructions and our workshop address — most jobs are completed and returned same-day on arrival, fully tracked.
Prefer we come to you or drop the vehicle in? Request a quote — mobile service is available across the West Midlands with a call-out fee based on your postcode.
Send-In Checklist
- EIS / EZS (electronic ignition switch) removed from the vehicle.
- All keys lost: the EIS alone — no working key or ECU needed.
- Add key: one existing working key so the new key is written alongside it.
- Optional: your ESL / steering lock if you want it inspected.
- A note inside the parcel with your order number, registration, name and phone number.
- Your return address — we send everything back insured and tracked.
Packing instructions and our workshop send-in address are emailed to you the moment your order is placed — always enclose a note with your order number, registration and phone number.
Read the full technical guideCall-out fees are guidance only — confirm your postcode when requesting mobile attendance. Postal send-in has no call-out fee.
Supported Models
- Mercedes W203 C-Class (2000–2007)
- Mercedes W209 CLK (2002–2009)
- Mercedes W211 E-Class (2002–2009)
- Mercedes W219 CLS (2004–2010)
- Mercedes W220 S-Class (late) / W221 (early) (2003–2009)
- Mercedes W164 ML / W251 R-Class (2005–2011)
Add-Key Programming
Required: Module + one working key
- Bench programming — no dealer visit
- Existing keys stay working
- Fast turnaround on arrival
All Keys Lost Recovery
Required: ECU + Immobiliser module (both sent in)
- Security data extraction
- Immobiliser rebuild
- All new keys paired and tested
Vehicle Compatibility
| Make | Model | Year |
|---|---|---|
| BMW | Mercedes W203 C-Class | 2000–2007 |
| BMW | Mercedes W209 CLK | 2002–2009 |
| BMW | Mercedes W211 E-Class | 2002–2009 |
| BMW | Mercedes W219 CLS | 2004–2010 |
| BMW | Mercedes W220 S-Class (late) / W221 (early) | 2003–2009 |
| BMW | Mercedes W164 ML / W251 R-Class | 2005–2011 |
Key Features
- Bench-level FBS3 EIS / EZS key programming — add spare or full recovery.
- Keys supplied, paired and tested against your VIN before dispatch.
- Original mileage, VIN and adaptation data preserved.
- Same-day work on arrival where possible, insured tracked return.
Service Overview
- Postal FBS3 key programming for W203 C-Class, W209 CLK, W211 E-Class, W219 CLS, late W220 and early W221. Add key from the EIS and one working key, or full all-keys-lost recovery from the EIS alone.
- Postal service as standard: order, post your module, we program and return it tracked. Mobile attendance is available across the West Midlands with a postcode-based call-out fee.
More Information
- Immobiliser
- FBS3 EIS / EZS
- Key Type
- Mercedes infrared / keyless-go key
- Security Level
- FBS3 — encrypted EIS key data
- Tooling
- EIS bench service, ESL emulator support, key bench testing
- Workshop
- Wolverhampton, West Midlands
- Product Code
- MCC-MB-FBS3
Why Choose MCC
- Specialist bench-side equipment
- Wolverhampton & West Midlands workshop
- Fast turnaround — same-day on arrival where possible
- Fixed transparent pricing — no VAT surprises
- UK-wide postal service — insured return delivery
Requirements
- Add Key — EIS/EZS + one working key. £165 for one key, £255 for two.
- All Keys Lost — Requires: EIS/EZS only — no working key needed. £200 for one key, £300 for two.
- Optional pre-coded ESL / steering-lock emulator — £100 added to a key job, £180 on its own.
- Optional digital smart key upgrade — £110 per key on this job.
- Vehicle registration so we confirm the immobiliser generation before you post anything.
- Proof of ownership (V5C + photo ID) for all-keys-lost work.
What You Get
- Your EIS/EZS programmed, bench-tested and returned ready to refit.
- New key(s) supplied, coded and battery-fitted.
- Any ESL emulator supplied already coded to your car — plug and play.
- Blade cutting to your lock profile where selected.
- Packing instructions and our send-in address emailed the moment you order.
- Insured tracked return delivery.
Frequently Asked Questions
What do I post to you?
For an add key: the EIS plus one working key. For all keys lost: just the EIS — no key and no ECU needed.
Where do I send it?
As soon as you order, we email your packing instructions and the send-in address, with your order number to write on the note inside the parcel.
Is the ESL emulator ready to fit?
Yes. We pre-code the emulator to your own EIS and key on the bench, so it plugs straight in with no coding at the car. £100 alongside a key job, £180 on its own.
How quickly do I get it back?
Most jobs are done the day they arrive and returned on a tracked next-day service.
Can you come to the car instead?
Yes — choose mobile call-out on this page. We cover Wolverhampton and the West Midlands, with the call-out fee confirmed for your postcode before we set off.
Not sure your car is compatible?
Send your VIN and we'll confirm compatibility before you order. We cover CAS1, CAS2, CAS3, CAS3+, CAS4/CAS4+, FEM/BDC and BDC2.