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Manufacturer

Robert Bosch GmbH

Robert-Bosch-Platz 1

70839 Gerlingen, Germany

+49 711 400 40990 contact@bosch.com Report a product safety issue

Responsible person in the EU

AUTO-ELEKTRONIKA DAMIAN SOSNOWSKI

Lelowska 20

42-235 Biała Wielka, Poland

+48888638546 sale@ecusale.com Report a product safety issue

Importer

AUTO-ELEKTRONIKA DAMIAN SOSNOWSKI

20 Lelowska

42-235 Biała Wielka, Poland

+48888638546 sale@ecusale.com

A2709002100 0261S09816 ECU Engine controller Mercedes MED17.7.2 W176 CLA GLA W246

Manufacturer: BOSCH (go to products)
English €
with VAT without VAT
Price €231.67

Shipping costs are not included in the price.

Availability:
available
Shipping from €41.70 - UPS express delivery around world (Afghanistan)

express delivery 3-6 days
Shipping time: 48 hours

Mercedes MED17.7.2 Bosch 0261S09816 – Tested Engine ECU Ready for Cloning

Engine ECU A2709002100 / 0261S09816 for selected Mercedes-Benz models equipped with the petrol M270 engine. The Bosch MED17.7.2 module is fully tested, covered by warranty and requires programming or cloning from the original ECU.

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Delivery within the European Union typically takes 1–3 business days.

🌍 Worldwide UPS Shipping

Worldwide delivery usually takes 4–7 business days.

Technical specifications

  • Vehicle Make and Model Mercedes A-Class CLA GLA
  • Engine type 1.6 CGI / 2.0 CGI
  • OEM Part Number A2709002100
  • Manufacturer Part Number Bosch : 0261S09816
  • Condition Second hand product
  • Warranty 6 MONTH
  • Payment Methods Credit Card , Bank Transfer , PayPal
  • Express Delivery within the EU European Union 2-3 working days
  • International Delivery Outside the EU Worldwide 4-7 working days

Mercedes Engine ECU A2709002100 Bosch 0261S09816 MED17.7.2 – tested module ready for programming

Original Mercedes-Benz engine ECU A2709002100 manufactured by Bosch with number 0261S09816, system MED17.7.2. This module is designed for selected Mercedes vehicles equipped with 4-cylinder gasoline engines, mainly from the M270 engine family.

This ECU is fully tested, ready for installation, but requires programming, adaptation or cloning for the specific vehicle. We also offer ECU cloning service after receiving the original module or EEPROM and FLASH files.

Application – Mercedes-Benz

The ECU may fit selected Mercedes-Benz models with 1.6 / 2.0 gasoline engines, however compatibility must always be verified by comparing the original ECU part number.

  • Mercedes-Benz A-Class W176 – selected gasoline versions
  • Mercedes-Benz B-Class W246 – selected gasoline versions
  • Mercedes-Benz CLA C117 / X117 – selected gasoline versions
  • Mercedes-Benz GLA X156 / W156 – selected gasoline versions
  • Mercedes-Benz A45 AMG – selected MED17.7.2 versions

Most commonly found with 1.6 CGI / 2.0 CGI / 2.0 Turbo gasoline engines. Before purchase compare numbers A2709002100, A2709011700 and 0261S09816 with your damaged ECU.

Part Numbers

  • A2709002100
  • A 270 900 21 00
  • A2709011700
  • A 270 901 17 00
  • 0261S09816
  • 0 261 S09 816
  • Bosch MED17.7.2

Programming / Cloning

The ECU is not Plug & Play without preparation. After installation, programming, immobilizer adaptation or cloning from the original ECU is required.

We can perform ECU cloning if we receive:

  • the original engine ECU,
  • or EEPROM and FLASH files read from the original module.

After successful cloning the ECU can operate like the original vehicle module without additional immobilizer adaptation.

Typical Symptoms of Faulty MED17.7.2 ECU

  • no communication with engine ECU,
  • engine will not start,
  • injector or ignition faults,
  • ECU power supply problems,
  • rough engine operation,
  • vehicle stalls or does not crank,
  • immobilizer faults after ECU damage,
  • damage after short circuit, water ingress or failed repair.

FAQ – Mercedes A2709002100 Bosch 0261S09816 MED17.7.2

Does ECU A2709002100 fit Mercedes A-Class W176?

Yes, ECU A2709002100 may be installed in selected Mercedes A-Class W176 gasoline models. Before purchase compare the original ECU numbers, especially 0261S09816 and MED17.7.2.

Is Bosch 0261S09816 ready for Plug & Play installation?

No. ECU Bosch 0261S09816 requires programming, adaptation or cloning. We can prepare the module after receiving the original ECU or EEPROM and FLASH files.

Are A2709011700 and A2709002100 the same ECU type?

Numbers A2709011700 and A2709002100 may appear on the same Mercedes MED17.7.2 ECU. For proper compatibility compare all labels from the original module.

Does this ECU fit Mercedes CLA C117 1.6 CGI?

ECU A2709002100 0261S09816 may fit selected Mercedes CLA C117 1.6 CGI gasoline versions. Part number matching and later programming or cloning are required.

Can MED17.7.2 ECU be cloned without sending the vehicle?

Yes. In many cases it is enough to send the original ECU or EEPROM and FLASH files. After data transfer the ECU can operate like the original module.

Does ECU A2709002100 fit Mercedes GLA 2.0 CGI?

This ECU number is found in selected Mercedes GLA gasoline 2.0 versions. Compatibility must be verified by comparing A2709002100, A2709011700 and 0 261 S09 816.

What to do if the original Mercedes ECU does not communicate?

If the original ECU does not communicate through OBD, it is often still possible to read data in bench service mode. EEPROM and FLASH data can then be transferred into a working MED17.7.2 ECU.

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        FAQ – Frequently Asked Questions

        1. Are the products tested before shipping?

        Yes, every ECU engine controller, BSI module, BCM module, ABS module, transmission control unit, and other automotive electronic module is electronically tested before shipment. Each unit is checked for proper communication and correct operation to ensure you receive a fully tested product ready for installation.

        2. Does the ECU engine controller require programming or coding after installation?

        Whether programming or coding is required depends on the version of the product. We offer VIRGIN, IMMO OFF, and Plug & Play ECU engine controllers. Information about any required programming or coding is always clearly stated in the product description. In many cases, the unit can be installed and used without any additional coding or adaptation.

        3. How do I choose the correct part for my vehicle?

        The most important step is to compare the part numbers found on your original unit. Pay special attention to the Bosch, Siemens, Magneti Marelli, Continental, or vehicle manufacturer's OEM part number. If you are unsure, simply send us a photo of your existing module or provide your vehicle's VIN, and our specialists will help you identify the correct part.

        4. Are the products covered by a warranty?

        Yes, all ECU engine controllers, ABS modules, BCM modules, BSI modules, transmission control units, and other automotive electronic modules offered in our store are covered by a warranty. Every product is carefully tested and prepared before shipment. If you experience any issues, our technical support team is available to assist with diagnostics and help resolve the problem quickly and efficiently.

        5. What payment methods are available in the store?

        We offer secure online payments processed through Stripe and PayPal. Customers can pay using a credit or debit card, Apple Pay, Google Pay, Klarna, online banking payments, or a traditional bank transfer. After placing an order, you will receive a secure payment link to complete your purchase safely and conveniently.

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