BMW 3 Series E46 325i Engine Control Unit 0261204420 – OEM DME 1430940

The 0261204420 Engine Control Unit, also known as DME 1430940, is a genuine OEM ECU designed for the BMW 3 Series E46 325i models.

This ECU (DME – Digital Motor Electronics) is the central brain of the engine management system, responsible for controlling fuel injection, ignition timing, air-fuel ratio, and emissions. It ensures smooth engine operation, optimal fuel efficiency, and peak performance.

Replacing a faulty ECU with a genuine OEM unit restores factory-level performance and reliability.

Product Specifications

• Part Number: 0261204420
• BMW Number: 1430940
• System Type: DME (Engine Control Unit)
• Vehicle: BMW 3 Series E46 325i
• Engine: 2.5L Petrol (M54B25)
• Transmission: Manual / Automatic
• Condition: Genuine OEM – Fully Tested Used Unit
• Warranty: 30 Days
• Shipping: Worldwide with tracking

Compatibility Table – BMW E46 325i ECU 0261204420

Compatibility may vary by VIN, region, and software version. Always match part number 0261204420 / 1430940 before purchase.

What Does the DME ECU Control?

The BMW DME system manages:

• Fuel injection timing
• Ignition timing
• Air-fuel mixture optimization
• VANOS (variable valve timing) system
• Idle speed control
• Emissions system
• Sensor integration (MAF, O2, TPS, coolant, etc.)

A properly functioning DME ensures performance, efficiency, and smooth engine response.

Common Symptoms of a Faulty ECU (DME)

• Check Engine Light ON
• Engine misfire or rough idle
• No start condition
• Poor fuel economy
• Loss of power
• Communication errors with diagnostic tools
• Irregular throttle response

Replacing the faulty DME with a genuine OEM unit typically resolves these issues.

Why Buy from Automan Spare Parts?

Automan Spare Parts is a trusted global supplier of genuine OEM automotive electronics.

What You Get:

• 100% Genuine OEM BMW ECUs
• Fully Tested and Verified Units
• Competitive Wholesale Pricing
• Fast Worldwide Shipping
• Tracking Provided
• 30-Day Warranty
• Expert Compatibility Support

We specialize in ECUs, TCMs, BCMs, and hybrid modules for European and Japanese vehicles.

Installation & Programming Notes

BMW ECUs usually require:

• Immobilizer (EWS) synchronization
• ECU coding/programming
• Key matching
• Diagnostic tool setup (INPA, ISTA, etc.)

Professional installation is highly recommended for proper integration.

Order BMW E46 325i ECU 0261204420 Today

Restore your vehicle’s performance with a Genuine OEM BMW 3 Series E46 325i Engine Control Unit 0261204420 / 1430940 from Automan Spare Parts.

Contact us with your VIN or ECU photo to confirm compatibility before placing your order.

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