---
product_id: 36108038
title: "ECU Mercedes Benz EIS Key Test Tool (W204 W207 W212)"
brand: "ecudiagnose"
price: "₨4278"
currency: LKR
in_stock: false
url: https://www.desertcart.lk/products/36108038-ecu-mercedes-benz-eis-key-test-tool-w204-w207-w212
store_origin: LK
region: Sri Lanka
---

# Fast Shipping Key Compatibility Specialized Tool ECU Mercedes Benz EIS Key Test Tool (W204 W207 W212)

**Brand:** ecudiagnose
**Price:** ₨4278
**Availability:** ❌ Out of Stock

## Summary

> 🔍 Discover the Key to Efficiency!

## Quick Answers

- **What is this?** ECU Mercedes Benz EIS Key Test Tool (W204 W207 W212) by ecudiagnose
- **How much does it cost?** ₨4278 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/36108038-ecu-mercedes-benz-eis-key-test-tool-w204-w207-w212)

## Best For

- ecudiagnose enthusiasts

## Why This Product

- Trusted ecudiagnose brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant Results:** Get immediate feedback on key performance.
- • **No Hassle Testing:** Check EIS functionality without the ELV connection.
- • **User-Friendly Design:** Simple operation for both professionals and DIY enthusiasts.
- • **Precision Engineering:** Designed specifically for W204, W207, and W212 models.
- • **Unlock Your Potential:** Test keys effortlessly with this specialized tool.

## Overview

The ECU Mercedes Benz EIS Key Test Tool is a specialized device designed for quick and efficient testing of keys and EIS functionality in W204, W207, and W212 models, ensuring you can diagnose issues without the need for complex connections.

## Description

Mercedes Benz EIS key Test Tool (W204W207 W212) It was difficult to tell the new Mercedes-Benz BGA key and NEC EIS were working or not, and it caused much trouble for the repair work. Now we have developed a Mercedes Benz EIS key Test tool specialized for W204, W207 and W212, the device can test whether the key and EIS is working or not without connecting with the direction lock ELV Operation Instruction: 1. Follow the next picture to connect the device, supply with 12V power adapter, LED2 indicator will flash and LED1 flash for 1 second Insert the key LED1 will keep flashing with buzzer beep once, remove the key LED1 stops flashing and with buzzer beep once, which indicate the key and EIS are in good condition. (Hear 1 beep when test ACC, LED1 indicator keep flashing when test legitimate key) 2. If LED2 indicator flashes with no beep when insert the key and no beep when remove the key, which indicates either key or EIS is not working.  3. Insert the new programmed key into EIS, the LED indicator on the key flashes; remove the key and insert back into EIS the key indicator goes off immediately with 1 beep, remove the key with 1 beep, which indicates the key has been successfully programmed. Some locksmith may have to repeat insert-and-remove key for 5 times to identify the newly programmed key, it depends on locksmith’s experience. Package including: 1pc x Mercedes Benz EIS key Test Tool

## Features

- It's in stock,We ship it by USPS.
- Specialized for W204, W207 and W212
- Test whether the key and EIS is working or not without connecting with the direction lock ELV

## Images

![ECU Mercedes Benz EIS Key Test Tool (W204 W207 W212) - Image 1](https://m.media-amazon.com/images/I/41GIWPZ+KdL.jpg)
![ECU Mercedes Benz EIS Key Test Tool (W204 W207 W212) - Image 2](https://m.media-amazon.com/images/I/31DRSOO-7sL.jpg)
![ECU Mercedes Benz EIS Key Test Tool (W204 W207 W212) - Image 3](https://m.media-amazon.com/images/I/41POr6VwUtL.jpg)

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**Shop now:** [https://www.desertcart.lk/products/36108038-ecu-mercedes-benz-eis-key-test-tool-w204-w207-w212](https://www.desertcart.lk/products/36108038-ecu-mercedes-benz-eis-key-test-tool-w204-w207-w212)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-17*