Mercedes-Benz EIS/EZS – Program 2 New Keys | Mail-In Service

Need 2 new keys programmed to your Mercedes-Benz EIS/EZS?

With this mail-in service, simply send us your EIS/EZS module. We'll program two new keys to the module and return the completed EIS along with the programmed keys, ready for installation and use.

No need to send the entire vehicle.

How It Works

1. Purchase the service
Order this listing and select the appropriate key option if applicable.

2. Remove your EIS/EZS
Remove the vehicle's EIS/EZS module and securely package it for shipping.

3. Mail it to Lacorte Automotive
Send us your EIS along with the required vehicle information and ownership documentation.

4. We program 2 new keys
We'll program two new keys to your EIS/EZS using the applicable vehicle-specific information.

5. We ship everything back
Your EIS and two programmed keys are shipped back to you, ready for installation.

Supported EIS Types

Our current service supports multiple Mercedes-Benz EIS configurations, including:

• EIS-164 (ST12)
• EIS-169 (ST12)
• EIS-203 (HC08)
• EIS-209 (ST12)
• EIS-209 Old (OK50E)
• EIS-209 Old (3K91D)
• EIS-211 (ST12)
• EIS-211 Old (OK50E)
• EIS-211 Old (3K91D)
• EIS-215 (1D69J)
• EIS-215 (ST12)
• EIS-220 215 (HC08)
• EIS-639 (HC08)
• EIS-639 (ST12)
• EIS-906 (ST12)

Compatibility must be verified before ordering. If you're unsure which EIS you have, send us a clear picture of the module label and your VIN.

What's Included

• Mail-in EIS/EZS programming service
• 2 newly programmed keys
• EIS/EZS programming
• Testing/verification before return
• Return shipping

You only need to mail us your EIS/EZS module.

Fast Turnaround

We understand that being without your Mercedes is inconvenient. Lacorte Automotive offers a typical 1–2 business day turnaround after receipt of your EIS, depending on workload and module condition.

Common Reasons for Ordering

This service is ideal when:

• You need additional replacement keys
• Existing keys are lost or damaged
• You want two fresh replacement keys
• You have a working EIS but need new keys programmed
• Your existing keys are no longer usable

Ownership Verification Required

Because the EIS/EZS and keys are part of the vehicle's immobilizer system, proof of ownership is required.

Please provide:

• Government-issued photo ID
• Vehicle title or current registration
• VIN

The documentation must correspond to the vehicle being serviced.

Important

This is a mail-in service. The vehicle does not need to be shipped to us.

You must send your original EIS/EZS module for programming. Keys are supplied and programmed as part of this service.

If you're unsure whether your EIS is supported, contact us before ordering with a photo of your EIS label and your VIN.

Lacorte Automotive
Professional Automotive Electronics • Fast Turnaround • Quality Service

Mail It In. We Program It. We Test It. We Ship It Back.

2 New Keys • EIS Programming • 1–2 Business Day Typical Turnaround