Complete Guide VW Golf Plus / Golf V 1.4 TSI Engine Control Unit ECU ECM | 03C906022AL | Bosch 0261S04399 | Genuine OEM

Complete Guide VW Golf Plus / Golf V 1.4 TSI Engine Control Unit ECU ECM | 03C906022AL | Bosch 0261S04399 | Genuine OEM.

Intro About AutoMan Spare Parts

At AutoMan Spare Parts, we specialize in genuine OEM ECU, ECM, TCM, fuse boxes, and control modules for Japanese and European vehicles. We are known as Germany’s No.1 trusted supplier for high-quality electronic car parts with the cheapest prices, premium quality, and fast global shipping.
Whether you are a workshop, dealer, or individual buyer, we offer an unmatched selection with guaranteed authenticity.

What Is the VW Golf Plus / Golf V 1.4 TSI ECU ECM?

The Engine Control Unit (ECU) for the VW Golf Plus and Golf V 1.4 TSI is the main engine management computer responsible for controlling fuel injection, ignition timing, turbo operation, emissions, and overall engine performance.
The specific OEM part references include:

• VW Part Number: 03C906022AL

• Bosch Number: 0261S04399

• Type: ME Control Unit

• Category: Engine Control Module (ECM)

This model is commonly used in VW Group vehicles using the 1.4 TSI turbocharged petrol engine.

Why Is the 03C906022AL ECU Important?

This ECU ensures:

• Optimal fuel efficiency

• Turbocharger regulation

• Lower emissions

• Smooth acceleration

• Reliable engine starting

• Protection against engine knock

• Communication with transmission, ABS, and immobilizer systems

A faulty ECU can cause major drivability issues.

Common Symptoms of a Faulty VW Golf 1.4 TSI ECU

If your 03C906022AL ECU is failing, you may notice:

• Engine misfire or rough idle

• Hard starting or no start

• Loss of power

• Turbo underperformance

• Check Engine Light ON

• Random sensor communication errors

• Inconsistent fuel trims

• Stalling during acceleration

If you experience any of these, replacing or repairing the ECU is recommended.

Do You Need Programming When Replacing This ECU?

Yes — programming is required.

This ECU is linked to the vehicle’s immobilizer, keys, and VIN.
You typically need:

• Immobilizer matching

• Key alignment

• VIN coding

• ECU adaptation

AutoMan Spare Parts offers pre-programmed / plug-and-play options for select models (contact support before ordering).

OEM Numbers Covered

This ECU may replace or be cross-compatible with:

• 03C 906 022 AL

• 03C906022AL

• Bosch 0 261 S04 399

• 0261S04399

Always confirm using your original ECU label.

Compatibility Table

Vehicle Compatibility

ECU Hardware Compatibility

Always check part numbers before purchase.

Why Buy This ECU From AutoMan Spare Parts?

1. Germany’s No.1 OEM ECU Supplier

We supply thousands of control units every month.

2. 100% Genuine OEM Parts

No clones or copies.

3. Cheapest Market Prices

Bulk purchasing and European sourcing allow unbeatable pricing.

4. Fast Global Shipping

We ship within 24 hours to USA, Mexico, Europe, Middle East, Australia, and Asia.

5. Secure Packaging & Warranty

All ECUs are tested before dispatch.

6. Expert Support

Our team assists with programming guidance.

How to Identify the Correct ECU for Your VW Golf 1.4 TSI

Check the label on your original ECU:

• VW Part Number (e.g., 03C906022AL)

• Bosch Number (e.g., 0261S04399)

• Hardware/Software Versions

• Engine Code (BLG, CAXA, CAVD)

If unsure, send us a clear photo — we verify compatibility free of cost.

Installation Tips

• Disconnect battery before installation

• Avoid touching ECU pins

• Ensure connectors are locked properly

• ECU must be coded before starting

• Use professional tools (ODIS, VCDS, Autel, Launch)

FAQ Section

1. Does a replacement ECU require programming?

Yes. Immobilizer and VIN coding are required.

2. Can this ECU be installed plug-and-play?

Only if programmed/cloned beforehand. We offer this service.

3. Is this ECU genuine and original?

Yes. All units at AutoMan Spare Parts are authentic OEM.

4. Do you ship worldwide?

Yes. Fast global delivery to USA, Canada, UK, Europe, Mexico, UAE, and more.

5. What if my part number is slightly different?

Send us a photo and we will confirm compatibility.

TLDR

• ECU for VW Golf Plus / Golf V 1.4 TSI

• Part Numbers: 03C906022AL, Bosch 0261S04399

• Requires programming (immobilizer alignment)

• Fits 1.4 TSI engines (BLG, CAVD, CAXA)

• Buy genuine OEM units from AutoMan Spare Parts, Germany’s top ECU supplier

• Fast worldwide shipping and best prices