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ECU Engine controller SEAT LEON 1.9 TDI BOSCH 0281014256 03G906021SA 03G906021AN EDC16U34
  • PARTS ECU Engine controller
  • BRAND AND MODEL SEAT LEON
  • NUMBER PARTS 0281014256
  • NUMBER PARTS 03G906021SA
  • OPTION AVAILABLE Locked / Unlocked - 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 SEAT LEON 1.9 TDI BOSCH 0281014256 03G906021SA 03G906021AN EDC16U34

Tested ECU Engine controller for Seat Leon 1.9 TDI, part numbers 0281014256 and 03G906021SA (also seen as 03G906021AN / EDC16U34), with warranty and fast shipping.

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Bosch
with VAT without VAT
Price 1 000,00 zł
PLN GBP EUR USD

Wybierz wariant produktu:

Individual variants may differ in price

Select 1) LOCKED 2) UNLOCKED / READY FOR PROGRAMMING
Click to check the logout options for this device
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Fast Delivery

DHL Express - 30 euro

6 Month Warranty

Returns Possible up to 14 days

Secure payments

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Shipping from 120,00 zł - shipping (Poland)

Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price

Cechy przedmiotu

  • PARTS ECU Engine controller
  • BRAND AND MODEL SEAT LEON
  • NUMBER PARTS 0281014256
  • NUMBER PARTS 03G906021SA
  • OPTION AVAILABLE Locked / Unlocked - 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 SEAT LEON 1.9 TDI BOSCH 0281014256 03G906021SA 03G906021AN EDC16U34

Tested ECU Engine controller for Seat Leon 1.9 TDI, part numbers 0281014256 and 03G906021SA (also seen as 03G906021AN / EDC16U34), with warranty and fast shipping.

Go to full description

ECU Engine controller SEAT LEON 1.9 TDI BOSCH 0281014256 03G906021SA 03G906021AN EDC16U34

Which Seat models does the ECU Engine controller 0281014256 03G906021SA fit?

The ECU Engine controller SEAT LEON 1.9 TDI BOSCH 0281014256 03G906021SA 03G906021AN EDC16U34 is used on selected Seat Leon versions with the 1.9 TDI engine. It manages engine operation and works with the vehicle’s electronics in everyday driving.

To confirm compatibility, match the exact numbers on your original ECU: 0281014256 and 03G906021SA. Some labels may also show references like 03G906021AN or EDC16U34.

What does the Bosch engine ECU 0281014256 do on a 1.9 TDI?

The Bosch engine ECU 0281014256 controls key engine parameters for a 1.9 TDI. It processes sensor signals, controls engine-related systems, and communicates with other modules.

A properly working ECU helps keep the engine running smoothly, improves throttle response, and supports stable day-to-day performance.

What symptoms can a faulty Seat Leon ECU (EDC16U34) cause?

A faulty ECU (often identified as EDC16U34) may cause starting problems, rough running, power loss, warning lights, or diagnostic communication errors. In some cases, security/immobilizer-related issues can also appear after replacement.

This 0281014256 / 03G906021SA ECU Engine controller is checked before dispatch, so you receive a tested unit with warranty and fast shipping.

Why are part numbers 0281014256 and 03G906021SA important when choosing an ECU?

Part numbers 0281014256 and 03G906021SA help you select the correct ECU for your specific Seat Leon 1.9 TDI setup. Similar-looking units can still differ in configuration or software and may not work correctly after installation.

Before ordering, compare all label markings, including any additional references such as 03G906021AN.

Does the Seat Leon ECU 0281014256 require coding after installation?

Depending on the vehicle version, the Seat Leon ECU 0281014256 may require adaptation/coding after installation, especially if it is linked to the immobilizer and security systems.

Matching both 0281014256 and 03G906021SA makes replacement easier and improves the chances of a trouble-free install.

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    FAQ
    1. How can I choose the correct product for my vehicle?
    odpowiedzCompatibility should always be verified using the part number shown on the module label. If you are unsure, you can send us a photo of your original unit for verification — our technical support team will respond as quickly as possible.
    2. What is the shipping time and warranty?
    We offer express shipping across Europe and worldwide using DHL, UPS, or FedEx. All products come with a 6-month warranty.
    3. Is the product tested before shipping?
    odpowYes, all modules are fully tested for communication and proper operation before shipping. Products are secured with warranty seals.iedz
    4. How can I pay for the product?
    We offer multiple online payment methods including Stripe, PayPal, Google Pay, Apple Pay, Visa, Mastercard, and other local payment options available depending on your country.