VANAZA Auto Electronics Services Visit Our store → Mercedes-Benz · Mail-In Electronic Service Mercedes FBS3 Keyless Go Key Programming Service
✓25+ Years Experience ✓1-Year Service Warranty ✓Transparent Communication ✓2–4 Day Bench Turnaround Ask a Question → ! Important — Please Read First
In this listing Compatibility Overview Process Warranty Requirements Contact Compatibility Listing-specific service coverage Coverage Spec Plate Vehicle MakeMercedes-Benz Supported ChassisC117/X117 · W164 · X164 · W166 · R172 · W176 · W204 · X204 · W207/A207 · W212 · W216 · W218 · W221 · W251 Year Range2006–2015, by chassis ServiceKey Programming Compatible Chassis
C117/X117 — CLA-Class, 2013–2015
W164 — M-Class, 2006–2011
X164 — GL-Class, 2007–2012
W166 — early M/GLE, 2012–06/2013
R172 — SLK-Class, 2012–2015
W176 — A-Class, 2012–2015
W204 — C-Class, 2008–2014X204 — GLK-Class, 2008–2015
W207/A207 — E-Class Coupe/Cabriolet, 2010–2015
W212 — early E-Class Sedan, 2010–2013/14
W216 — CL-Class, 2007–2014
W218 — pre-facelift CLS-Class, 2012–2014
W221 — S-Class, 2007–2013
W251 — R-Class, 2012–2013 Important Compatibility Notice
Vehicle year / make / model and VIN - Clear photos of the original EIS label
Overview What you are buying
Included ✓Service performed within the agreed scope ✓Intake review of the supplied original EIS and key ✓Key addition and programming within the confirmed scope ✓Return shipment preparation after service completion
This service adds and programs a key within the confirmed scope. It does not guarantee resolution of unrelated vehicle, wiring, key, installation, or other issues outside that scope.
Not Included ×Physical module, unless explicitly confirmed in writing ×Full bench diagnostics beyond the basic communication check included with the purchased service ×Repair of unrelated vehicle issues ×Wiring repair, fuse/relay repair, or network communication repair ×Installation labor ×Towing, storage, rental, or incidental costs ×Additional services outside the purchased scope
Anything outside the agreed service scope is handled separately and is not included with the purchased service. Contact us through messages before purchase if you need additional work.
How It Works The process, step by step Before Shipping 1
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Send & Intake 5
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Service & Return 7
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Why Choose Vanaza Quality workmanship, done right
1 Old-School European Engineering
2 A Careful, Documented Process
3 Quality Hard To Find Anywhere
Customer response What our customers say
Warranty One-year service warranty
! We do not guarantee that the vehicle will start.
Covered by our warranty ✓Proper execution of the purchased service ✓Integrity of the work completed within the agreed scope ✓Correction of the service if our inspection confirms it was not performed correctly ✓The one-year warranty period begins on the date the order is placed on Not covered ×Incorrect diagnosis or unrelated vehicle faults ×Wiring, fuse, relay, power, ground, sensor, or network issues ×Faulty buyer-supplied hardware or other modules outside the purchased scope ×Third-party modifications, installation errors, or damage after return shipment ×The warranty is void if the order is cancelled or refunded
Warranty Review ProcessHow to activate your warranty + 1
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Requirements & Policies Everything you need to know
What You Must Send+
For the offered service, the buyer must provide:
- Original EIS with part number
- Original key
- Vehicle year / make / model and VIN
- Clear photos of the EIS label before shipping
We may request communication status, scan proof, or additional module details before confirming the service scope.
If the original module cannot be read, has no communication, is corrupted, damaged, previously modified, or otherwise unsuitable, the standard service may not be possible. The order will be paused while we confirm whether data recovery may be possible for an additional fee; if declined, the modules will be returned.
Damaged, unreadable, or non-compatible EIS modules are outside the purchased scope. If intake identifies one of these conditions, we will contact the buyer through messages before proceeding.
Before You Ship+
Keep all confirmations, module photos, and technical details inside messages for buyer and seller protection and a clear order record.
Before shipping, the buyer must confirm:
- This order is for the offered service only
- The original EIS and original key will be sent
- No guaranteed vehicle fix is being promised
- Communication or compatibility issues may pause the order
- The listing scope and requirements have been read and accepted
Wait for shipping instructions through messages. They are released only after written scope confirmation and receipt of the required module details. Packages sent without prior instructions may be delayed and may not enter active work until reviewed.
Order Cancellation Policy+
Service orders are expected to be shipped within a reasonable time after purchase.
If a buyer fails to ship the required module(s), becomes unresponsive, or requests to cancel the order after unnecessarily delaying shipment, thereby preventing us from scheduling and completing the service within our normal workflow, a $25 Order Cancellation Fee may be deducted from the refund.
Module Condition & Labor Policy+
Please disclose if your module has been previously opened, repaired, modified, or tampered with before shipping.
If undisclosed damage, previous repair attempts, corrupted data, or other conditions preventing the requested service are discovered after inspection, we reserve the right to cancel the service.
A $35 Diagnostic/Labor Fee may apply if the requested service cannot be performed.
If extensive technician time is required due to undisclosed previous repairs, modifications, or tampering, an additional labor fee, determined at our discretion based on the actual time and complexity involved, may be deducted from the refund.
Original shipping charges are non-refundable. Return shipping costs are the buyer\'s responsibility.
This fee covers administrative handling, order management, and reserved technician scheduling associated with the canceled order.
Shipping & Package Identification+
Include a printed packing slip whenever possible. Also place your username on a note inside the package or clearly on the package so it can be matched to the order quickly.
Packages without required module details or clear identification may be delayed during intake and order matching.
Intake & Turnaround+
Receipt of a package does not mean work has started. Active work begins only after:
- Package identification
- Intake review
- Basic communication check
- Confirmation that the order matches the purchased service scope
may show a longer handling window because it includes confirmation, intake, identification, communication checks, the service itself, and return-shipment preparation.
Typical bench turnaround is 2 to 4 business days after receipt, identification, intake review, and scope confirmation. Damaged, non-communicating, or non-compatible cases may require more time or may not be serviceable. Buyer shipping time to us is separate.
Service Outcome, Installation & Problems+
Completion means the purchased key-programming service was performed within the agreed scope. It does not confirm that the key, EIS, wiring, installation, or other vehicle systems are fault-free, and it does not guarantee resolution of every key, communication, ignition, or vehicle fault.
Professional installation is strongly recommended. Before concluding that the service result is faulty, verify:
- Compatibility of all supplied modules
- Proper power, grounds, and wiring condition
- Key and immobilizer-related module condition
- Any synchronization or adaptation required outside the agreed service scope
If there is an issue, contact us through messages with the current symptoms, relevant photos or details, and scan results if available. We may request return of the serviced module(s) for inspection.
Buyer Acknowledgment
Have a question before you buy?
Ask a Question → Please include ✓Vehicle year / make / model ✓VIN ✓Original module part number ✓Communication status and scan proof, if available ✓Clear photos of all module labels Copy-Paste Message Template
1. VEHICLE & SERVICEVehicle Year / Make / Model: __________VIN: __________Service Requested: __________2. MODULE DETAILSOriginal EIS Part Number: __________Original Key Included: Yes / NoEIS Communicates? Yes / No / UnknownScan report or diagnostic screenshot, if available: Attached / Not Attached3. PREVIOUS WORKHas the supplied module(s) been previously opened,repaired, modified, or programmed? Yes / NoIf Yes, describe what was done: __________4. ATTACHMENTS & NOTESModule Label Photos: Attached / Not AttachedQuestions / Notes: __________
Please keep all communication inside messages for buyer and seller protection.
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