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Electrical Parts
Engine Control Unit – ECU
Engine control unit for Mercedes
ECU ENGINE CONTROLLER MERCEDES BENZ 0281014322 A6421503872 CR4.12

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ECU ENGINE CONTROLLER MERCEDES BENZ 0281014322 A6421503872 CR4.12

Technical data

PARTS	ECU ENGINE CONTROLLER
BRAND AND MODEL	MERCEDES
NUMBER MANUFACTURER	0281014322
OPTION AVAILABLE	Locked / Ready for programming
WARRANTY :	6-month warranty
INSPECTION:	Device thoroughly inspected and tested by a certified technician
CONDITION	USED ORYGINAL IN GOOD CONDITION

ECU ENGINE CONTROLLER MERCEDES BENZ 0281014322 A6421503872 CR4.12

Availability:: available

Delivery: check the delivery methods

Price: €600.00 600.00

Net price: €487.81

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Vendor: Bosch

Product code: 7E18-381C0

Engine Control Unit Mercedes-Benz 0281014322 A6421503872

The engine control unit 0281014322 (A6421503872, CR4.12) is a proven component that helps restore proper and stable engine operation in Mercedes-Benz vehicles.

Oferta produktu ECU ENGINE CONTROLLER MERCEDES BENZ 0281014322 A6421503872 CR4.12, który został przetestowany i jest objęty 1-miesięczną gwarancją. Wysyłka w 24–48 godzin.

Description

ENGINE CONTROL UNIT MERCEDES-BENZ 0281014322 A6421503872 CR4.12

Below you will find short information about the engine control unit with part numbers 0281014322 and A6421503872 (CR4.12), used in Mercedes-Benz diesel vehicles.

Which models does the 0281014322 ECU fit?

This ECU is used in selected Mercedes-Benz models with diesel engines, most commonly in vehicles equipped with 2.1–3.0 CR-D units. Part numbers 0281014322 and A6421503872 refer to the same engine control unit. The best way to confirm compatibility is by checking the vehicle VIN to ensure the correct module selection.

Are 0281014322 and A6421503872 the same ECU?

Yes — both numbers refer to the same engine control module. The differences are only due to the way the numbers are written in Mercedes-Benz and electronics supplier catalogs. If the numbers match, the modules are interchangeable.

What symptoms may indicate ECU failure?

The most common symptoms include starting problems or unstable engine operation. The vehicle may lose power, respond with delay to the accelerator pedal, or enter limp mode. Sometimes there is no diagnostic communication with the ECU. These symptoms often indicate ECU-related issues.

Does this ECU require programming?

Yes — after installation, the ECU usually needs to be matched to the specific vehicle. This typically includes immobilizer configuration and Mercedes-Benz specific ECU parameters. The process should be performed by an automotive electronics specialist. After proper programming, the module works correctly.

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Variants

Click the link below to check the available engine ECU preparation options.

LINK TO DESCRIPTION OF ECU UNLOCK OPTIONS

Please note that not every option is available for each variant – to ensure the selected option is compatible with your product, we recommend contacting us by email:

contact@auto24parts.com

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