Description

This listing is for a reconditioned BorgWarner BV39 turbocharger, specifically engineered for the Audi A3 TDI 140HP with the BKD engine code, manufactured between 2003 and 2009. We meticulously recondition these units to meet or exceed original equipment specifications, ensuring reliable performance.

This turbocharger is a direct replacement for the original unit found in the specified Audi A3 models. The OEM part number for this unit is 03G253019J, with an alternative part number of 54399880048. Common failure modes for this particular BV39 series often include oil seal leaks, which typically manifest as blue smoke from the exhaust, and wheel imbalance caused by foreign object damage or bearing wear. These issues can lead to reduced power, increased oil consumption, and potential catastrophic failure if not addressed promptly.

At Gap Turbos, we specialise in providing high-quality turbocharger solutions. Our reconditioned units undergo a comprehensive process, including full disassembly, cleaning, inspection of all components, replacement of worn parts with new OEM-quality equivalents, and precise balancing of the compressor and turbine wheels. We also offer new exchange units for those requiring a brand-new part, and our Birmingham workshop provides a professional fitting service. Furthermore, we can conduct pre-diagnosis and clean associated pipework to ensure optimal operation of your new or reconditioned turbocharger.

What this turbocharger fits

This BorgWarner BV39 turbocharger is designed for the following vehicle:

• Brand: Audi
• Model: A3 TDI
• Engine Code: BKD
• Horsepower: 140HP
• Year Range: 2003-2009
• Fuel Type: Diesel
• OEM Part Number: 03G253019J
• Alternative Part Number: 54399880048

We pride ourselves on our technical expertise and commitment to quality. Please contact us for a detailed quote or to discuss our warranty terms on this reconditioned turbocharger.

Specifications

Vehicle fitment

• Audi A3 TDI

Common faults & troubleshooting

[‘Blue smoke from exhaust: Indicates oil seal failure within the turbocharger, requiring inspection and likely replacement of the unit.’, “Loss of power or ‘limp mode’: Often due to sticking variable geometry vanes or a faulty actuator, check for boost leaks or N75 valve issues.”, ‘Whining or screaming noise: Suggests severe bearing wear or compressor/turbine wheel contact with the housing, necessitating immediate replacement to prevent further engine damage.’, ‘Excessive oil consumption: Points to internal oil leaks from the turbocharger, typically through worn seals or damaged bearings.’, ‘Black smoke from exhaust: Can indicate overfuelling or insufficient air, check for boost leaks, a restricted air filter, or issues with the mass airflow sensor.’]

Fitting notes for this unit

[‘Oil Feed Pipe: Always replace the oil feed pipe and ensure it is clear of any carbon build-up or restrictions. Prime the new turbocharger with fresh engine oil directly into the oil feed port before fitting.’, ‘Oil Drain Pipe: Thoroughly inspect and clean the oil drain pipe and engine block return port to ensure unrestricted oil flow back to the sump.’, ‘Gaskets and Seals: Use all new gaskets and sealing washers for the turbocharger, exhaust manifold, and downpipe. Never reuse old gaskets.’, “Torque Settings: Adhere strictly to the manufacturer’s specified torque settings for all fasteners, especially those securing the turbocharger to the manifold and the exhaust system.”, ‘First Start Procedure: After installation, disconnect the fuel supply or ignition and crank the engine for 10-15 seconds to allow oil pressure to build and circulate through the turbocharger before the engine starts.’, ‘Engine Oil and Filter: Always perform an engine oil and filter change using the correct grade and specification of oil immediately before fitting the new or reconditioned turbocharger.’]

Alternative part numbers

This turbo is also referenced by:

• 54399880048 — BV39 Turbocharger OE 54399880048 (Audi A3 TDI, BKD, 140hp)

Frequently asked questions