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  • ECU Engine Mercedes sprinter 3.0 A6421505372 0281014343
  • ECU Engine Sprinter 3.0 A6421505372 0281014343
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Product safety

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

A6421505372 0281014343 VIRGIN ECU Engine controller MERCEDES 3.0 CDI CR4.20

Manufacturer: BOSCH (go to products)
English €
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Price €231.18

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VIRGIN Bosch 0281014343 – Mercedes 3.0 CDI engine control unit A6421505372 CR4.20

Engine control unit A6421505372 with Bosch number 0281014343 (CR4.20) in VIRGIN version – clean, prepared for programming; fits 3.0 CDI OM642 engines (2987 cm³), and compatibility is determined by the matching part number.

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Information

  • CAR MODEL MERCEDES
  • ENGINE 3.0
  • OEM NUMBER 0281014343
  • MANUFACTURER PART NUMBER A6421505372 CR4.20
  • PLUG AND PLAY VIRGIN
  • PLUG AND PLAY Automatic programming
  • WARRANTY 6 MONTH
  • PRODUCT CONDITION Second hand product
  • PAYMENT: Credit Card , Bank Transfer , PayPal
  • EXPRESS DELIVERY – in EU Countries: European Union 2-3 working days
  • INTERNATIONAL DELIVERY – Outside EU Countries: Worldwide 4-7 working days

A6421505372 0281014343 VIRGIN – ECU ENGINE CONTROLLER Mercedes 3.0 CDI CR4.20

The offered ECU ENGINE CONTROLLER A6421505372 with Bosch number 0281014343 (CR4.20) is a VIRGIN – clean version, prepared for reprogramming in the vehicle. The unit has been professionally cleared of immobilizer data and requires adaptation / programming after installation.

The product is dedicated to 3.0 CDI V6 (OM642) engines. The most important compatibility criterion is the matching of part numbers: A6421505372 and 0281014343. If the numbers on your controller are identical – the module will be 100% compatible, regardless of the body version.

VIRGIN version – what does it mean?

An VIRGIN (clean) controller is reset to factory state. After installation it requires programming to the vehicle using appropriate diagnostic equipment (e.g. Star Diagnosis / Xentry). Only after immobilizer adaptation will it be ready for operation.

Application (examples)

The CR4.20 controller was used, among others, in Mercedes models with the 3.0 CDI engine with displacement of 2987 cm³:

  • Mercedes-Benz E-Class W211 / W212 – E280 CDI, E300 CDI, E320 CDI (approx. 2005–2012)
  • Mercedes-Benz C-Class W203 / W204 – C320 CDI (approx. 2005–2011)
  • Mercedes-Benz ML W164 – ML280 CDI, ML320 CDI (approx. 2005–2011)
  • Mercedes-Benz GL X164 – GL320 CDI (approx. 2006–2012)
  • Mercedes-Benz R-Class W251 – R280 CDI, R320 CDI
  • Mercedes Sprinter 3.0 CDI (selected versions)

Note: the above list is for reference only. Different software versions may have been used in a given production year. Always compare the number A6421505372 or Bosch 0281014343 with your own module.

 

Q&A – A6421505372 / 0281014343

Does the ECU ENGINE CONTROLLER A6421505372 fit my vehicle?
If the number on your unit is A6421505372 or 0281014343 – the product will be fully compatible. The part number is more important than the vehicle model itself.

Does 0281014343 work without programming?
No. This is a VIRGIN version, meaning it is clean – it requires programming and immobilizer adaptation after installation.

Which engine is 0281014343 CR4.20 designed for?
The controller is designed for 3.0 CDI V6 OM642 engines with displacement of 2987 cm³.

I have a different Mercedes model but the number matches – will it work?
Yes. If the ECU ENGINE CONTROLLER number A6421505372 or Bosch 0281014343 is identical, compatibility is maintained 100%.

What does CR4.20 mean?
CR4.20 is the designation of the Bosch controller type used in Common Rail systems in 3.0 CDI engines.

 

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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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