Skip to main content
English / €
Products in the cart: 0. See details

Your cart is empty

Go to Product feedback

A6409003700 0281017236 VIRGIN ECU engine controller Mercedes B-Class W245 B200 2.0 CDI

BOSCH

Bosch CR40 ECU for Mercedes B200 CDI W245 – VIRGIN Engine ECU

Engine ECU 0281017236 A6409003700 for the Mercedes-Benz B-Class W245 B200 CDI 2.0 supplied in VIRGIN version. Tested Bosch CR40 engine controller ready for programming and vehicle adaptation using Star Diagnosis / Xentry.

Go to full description
Fast delivery of ECU engine unit – within 1–2 working days
English / €
with VAT without VAT
Price €295.15
incl. 23% VAT

Shipping costs are not included in the price.

Shipping from €42.50 - UPS express delivery around world (Afghanistan)

express delivery 3-6 days

pcs
Availability:
available
Ask about the product

info

Information

  • CAR MODEL Mercedes B-Class W245
  • ENGINE B200 2.0 CDI
  • OEM: A6409003700 / A 6409003700
  • PART NUMBER 0281017236
  • VARIANT VIRGIN – ready for programming
  • WARRANTY 6 MONTH
  • TESTED 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

description

0281017236 A6409003700 Engine ECU for Mercedes B-Class W245 B200 CDI 2.0

The offered Bosch engine ECU 0281017236 with Mercedes part number A6409003700 is designed for the Mercedes-Benz B-Class W245 B200 CDI 2.0. The unit is supplied in VIRGIN condition, meaning it has been reset and prepared for programming and adaptation to another vehicle.

This is not a Plug & Play version. After installation, the ECU requires programming and coding to the vehicle using suitable diagnostic equipment, most commonly Mercedes Star Diagnosis / Xentry. During the adaptation process, the control unit must be synchronized with the immobilizer system and vehicle configuration.

Compatibility – 0281017236 A6409003700 ECU

  • Mercedes-Benz B-Class W245
  • B200 CDI 2.0 diesel
  • OM640 engine family
  • typically production years: 2005–2011
  • Bosch / Mercedes CR40 engine control unit

Before purchasing, compare the part number from your original ECU label. The key references to verify are 0281017236 and A6409003700. Matching the part number is the safest way to ensure compatibility.

ECU preparation

The ECU has been fully tested, communication checked, and prepared in VIRGIN condition. This means it can be adapted again to another vehicle but requires programming after installation.

Possible symptoms of a faulty engine ECU

  • no communication with the engine ECU,
  • engine will not start,
  • immobilizer or start authorization faults,
  • injector power supply problems,
  • irregular engine operation on the B200 CDI,
  • CAN communication errors or no start permission,
  • check engine light and stored ECU fault codes.

Programming after installation

After installing the 0281017236 / A6409003700 ECU, adaptation must be carried out in the vehicle. The recommended tools are Mercedes Star Diagnosis or Xentry. The process generally involves installing the ECU, connecting to the vehicle, performing engine ECU adaptation, and synchronizing it with the immobilizer system.

FAQ – 0281017236 A6409003700 Engine ECU Mercedes B-Class W245

Is ECU 0281017236 compatible with Mercedes B-Class W245 B200 CDI?

Yes, the 0281017236 engine ECU is used in Mercedes-Benz B-Class W245 B200 CDI 2.0 models equipped with the OM640 diesel engine. However, the Bosch and Mercedes part numbers should always be compared before purchase.

Is A6409003700 ready for installation without coding?

No. The A6409003700 ECU is prepared in VIRGIN condition but is not Plug & Play. Programming and adaptation to the vehicle are required after installation.

Which tool is required to program the Mercedes B200 CDI W245 ECU?

For ECU adaptation in the Mercedes B-Class W245 B200 CDI, Mercedes Star Diagnosis / Xentry is recommended. It allows synchronization with the immobilizer system and vehicle configuration.

Does Bosch ECU 0281017236 require immobilizer programming?

Yes. Since the ECU is supplied as VIRGIN, it must be coded and synchronized with the immobilizer after installation.

How can I verify compatibility of ECU A6409003700?

The best method is to compare the part number from the original ECU label. The key references are 0281017236, A6409003700, and the CR40 ECU designation.

Does this ECU fit Mercedes B-Class 2.0 CDI?

This ECU may fit the Mercedes B-Class W245 B200 CDI 2.0, but compatibility should always be confirmed by matching the part number. Vehicle model alone is not enough.

Is ECU 0281017236 tested before shipping?

Yes. Every ECU is tested before dispatch, communication is checked, and the unit is prepared for further adaptation in the vehicle.

Electronic Car Parts FAQ – ECUSALE

1. Are the electronic modules tested before shipping?

Yes. Every electronic module, including ECU ENGINE CONTROLLERS, ABS pumps, BSI, BCM, comfort modules, transmission controllers and other automotive electronics, is electronically tested before shipping. We verify communication, power supply and basic operation to ensure the product is working correctly before delivery. This allows you to receive a tested and ready-to-install unit.

2. Does the module require programming or coding after installation?

It depends on the product version and the type of module. We offer VIRGIN, IMMO OFF and Plug & Play solutions. Information about programming or coding requirements is always included in the product description. In many cases, installation is possible without additional coding, while some modules may require adaptation using diagnostic equipment.

3. How can I choose the correct module for my vehicle?

The most important step is comparing the part numbers from your original module. Please check the Bosch, Siemens, Magneti Marelli, Continental or OEM manufacturer numbers on the label. If you are unsure, you can send us a photo of your original module or your vehicle VIN number and we will help verify compatibility.

4. Are the products covered by warranty?

Yes. All electronic automotive modules sold in our store are covered by warranty. Every product is checked and prepared before shipping. If any problem occurs, we also provide technical support and product diagnostics assistance.

5. Which payment methods are available in your store?

We offer secure online payments through Stripe and PayPal. Customers can pay using credit or debit cards, Apple Pay, Google Pay, Klarna, online bank transfers and other secure payment methods. After placing an order, you will receive a secure online payment link.

Reviews

Number of ratings: 0
Rate and review

  • Audi Q7 3.0 TDI Water Damaged Engine ECU| 4L1910401D & 4L0910401G IMMO OFF Plug & Play

    Audi Q7 3.0 TDI won’t start after heavy rain? The engine ECU could be water damaged

    One of the most common failures in the Audi Q7 3.0 TDI is water damage affecting the Bosch EDC17CP04 engine ECU. This issue frequently impacts units 0281015868 and 0281014174, which are mounted beneath the windscreen scuttle panel, an area highly exposed to moisture and blocked drainage channels that can lead to corrosion inside the ECU.

    In this article, we explain the typical symptoms of a failed Audi Q7 3.0 TDI engine control unit, when ECU cloning is still possible, and why in many situations an IMMO OFF Plug & Play solution is the fastest and most reliable repair option.

    0281015868 & 0281014174 – common ECU failures in the Audi Q7 3.0 TDI

    Learn why engine ECUs such as 4L1910401D and 4L0910401G are especially vulnerable to water ingress, which fault codes usually appear during diagnostics, and how professional ECU repair or replacement is performed for the Audi Q7 3.0 TDI.

    Read more
  • Water-Damaged Bosch 0281013691 / 4L0910401K ECU – Common Audi Q7 3.0 TDI Engine Control Unit Failure

    Water Damage in Bosch 0281013691 / 4L0910401K ECU – A Common Audi Q7 3.0 TDI Failure

    The Bosch 0281013691 / 4L0910401K engine control unit fitted to the Audi Q7 3.0 TDI 4L is well known for being vulnerable to water damage. In many cases, the issue is caused by the ECU’s location beneath the windshield cowl, where moisture and rainwater can accumulate over time due to blocked drainage channels.

    Symptoms of a failing ECU may appear gradually or occur suddenly after heavy rain, a car wash, or long periods of vehicle inactivity. Common signs include no communication with the engine control module, intermittent or complete no-start conditions, CAN bus communication faults, and in severe cases, a completely dead ECU in the Audi Q7 3.0 TDI.

    Similar problems frequently affect other Bosch EDC16CP34 units installed in the same location, including 0281012772 / 4L0907401, 0281012919 / 4L0907401, 0281013689 / 4L0910401M, and 0281013690 / 4L0910401L. These engine control units share nearly identical hardware architecture, with the main differences relating to software versions and vehicle-specific configuration used across different Audi Q7 3.0 TDI variants.

    In this article, we explain the most common failure symptoms of the 0281013691 / 4L0910401K ECU, the typical causes of water intrusion, CAN communication issues, and a practical solution in the form of a ready-to-install IMMO OFF Plug & Play engine ECU that works without immobilizer programming or data cloning.

    Read more