Description
The 038906019AN is an original diesel engine management controller from the VAG Group’s TDI family, fitted to Audi and associated Volkswagen Group vehicles equipped with the 1.9 TDI powertrain. The 038906019 series represents a distinct calibration variant within the TDI ECU range, with the AN suffix denoting a specific engine code and software revision tailored to the injection system and emission calibration of the applicable engine.
This ECU handles the full scope of diesel engine control: injection event timing, rail pressure management, EGR duty cycle, variable geometry turbocharger actuation and cold-start enrichment. It interfaces with the vehicle’s instrument cluster to display the glow indicator and communicates with the immobiliser module to authenticate the key before enabling the injection system — making it one of the most critical modules on any 1.9 TDI platform.
Failure patterns associated with this ECU variant on TDI models include the engine starting but immediately entering limp mode, poor acceleration from standstill paired with excessive smoke under load, fault codes for injection quantity deviation on multiple cylinders simultaneously, and loss of EGR function or turbo control that cannot be traced to the actuators themselves when tested independently.
This unit is a genuine used OEM part recovered from a VAG TDI application and tested before listing. Professional coding and adaptation using VAG-compatible diagnostics will be required at the time of fitment. Match the full part number to your existing ECU before placing an order.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
