Description

This listing is for a reconditioned Garrett GT17V turbocharger, specifically designed for the Audi A4 2.0 TDI (BPW engine code, 140HP) manufactured between 2004 and 2008. This variable nozzle turbine (VNT) unit is critical for your vehicle’s performance, supplying compressed air to the engine to enhance power output and fuel efficiency.

Common failure modes for this GT17V turbocharger primarily revolve around the variable nozzle mechanism and the core rotating assembly (CHRA). The VNT mechanism, which adjusts exhaust gas flow to the turbine, is prone to seizing due to carbon and soot build-up, often leading to ‘limp mode’ or reduced boost pressure. Electronic actuator faults are also frequent, preventing proper vane operation. Furthermore, like all turbochargers, the CHRA bearings can suffer from premature wear caused by oil starvation, contamination, or extended service intervals, manifesting as excessive noise, smoke, or complete failure.

At Gap Turbos, we specialise in providing high-quality reconditioned units like this one. Our reconditioning process involves a complete strip-down, thorough cleaning, replacement of all wear components including bearings and seals with new, high-grade parts, and precision balancing of the CHRA to OE specifications. The VNT mechanism and electronic actuator are meticulously checked, cleaned, and calibrated on a flow bench to ensure optimal performance and longevity. We offer this unit on an exchange basis, and our Birmingham workshop can also provide professional fitting and system cleaning services.

What this turbocharger fits

This reconditioned turbocharger is a direct fit for:

• Vehicle: Audi A4
• Engine: 2.0 TDI
• Engine Code: BPW
• Horsepower: 140 HP
• Year Range: 2004 – 2008
• Fuel Type: Diesel
• OEM Part Number: 035145702K
• Alternative Part Numbers: 761437-5005s, 761437-0005, 761437-5003S, 761437-0003

Investing in a reconditioned turbo from Gap Turbos ensures you receive a product that meets stringent quality standards, offering a cost-effective alternative to a brand-new unit without compromising on reliability. All our reconditioned turbochargers come with a comprehensive 12-month warranty for your peace of mind. For current pricing or to arrange fitting, please contact us directly for a competitive quote.

Specifications

Vehicle fitment

• Audi A4 2.0 TDI

Common faults & troubleshooting

• Loss of power or ‘limp mode’: Often indicates the VNT mechanism is seized due to soot, or the electronic actuator is faulty, preventing proper boost control.
• Excessive blue or white smoke from exhaust: Typically points to internal oil seal failure within the turbocharger, allowing oil to enter the exhaust or intake.
• Whining, screeching, or grinding noises: These sounds usually signify worn or damaged bearings within the turbo’s CHRA, requiring immediate attention to prevent further damage.
• Delayed throttle response or ‘turbo lag’: Can be caused by a sticking VNT mechanism, a boost leak in the intake system, or a slow-responding actuator.
• Check engine light with boost-related fault codes: Commonly triggered by an electronic actuator malfunction, a faulty boost pressure sensor, or persistent over/under boost conditions.

Fitting notes for this unit

• Oil System Priming: Crucially, prime the new/reconditioned turbo with clean engine oil before the first start; crank the engine without firing to build oil pressure before allowing it to run.
• Replace Oil Feed Pipe: Always fit a new oil feed pipe and associated banjo bolts/washers to prevent contamination and ensure adequate oil supply to the turbo.
• Clean All Pipework: Thoroughly clean or replace all intake and intercooler pipework, and the exhaust manifold, to remove any debris or oil residue from the previous failure.
• Gasket Replacement: Ensure all manifold, downpipe, oil feed, and oil drain gaskets are replaced with new, high-quality items to prevent leaks.
• Torque Settings: Adhere strictly to manufacturer’s torque specifications for all fasteners, especially for the turbo-to-manifold bolts and oil line connections.
• First Start Procedure: After installation, allow the engine to idle for at least 5-10 minutes without revving to ensure the turbo receives a steady oil supply and stabilises.

Alternative part numbers

This turbo is also referenced by:

• 761437-5005s — GT17V Turbocharger OE 761437-5005s (Audi A4 2.0 TDI, BPW, 140hp)

Frequently asked questions