The Volkswagen BPY is a 1,984 cc, inline‑four turbocharged petrol engine produced between 2005 and 2010. It features gasoline direct injection (FSI), a single turbocharger, and dual overhead camshafts (DOHC). This engine delivered 147 kW (200 PS) and 280 Nm of torque, with its high-pressure direct injection enabling strong low-rpm torque for everyday drivability.
Fitted to models such as the Mk5 Golf GTI, Jetta GLI, and Eos, the BPY was engineered for spirited performance and responsive acceleration. Emissions compliance was achieved through precise fuel metering and secondary air injection, allowing it to meet Euro 4 standards across its production run.
One documented concern is carbon buildup on intake valves, a characteristic of early FSI engines without port injection. This issue, noted in Volkswagen Technical Service Bulletin 2023087/3, is caused by fuel being injected directly into the combustion chamber, bypassing the intake valves. Later TSI engines addressed this by adding a secondary port fuel injection system.
Volkswagen
Production years 2005–2010 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/5678).
The Volkswagen BPY is a 1,984 cc inline‑four turbocharged petrol engineered for performance hatchbacks and sedans (2005-2010). It combines gasoline direct injection (FSI) with a single turbocharger to deliver responsive power and strong mid-range torque. Designed to meet Euro 4 standards, it balances sporty performance with acceptable fuel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,984 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 82.5 mm × 92.8 mm | |
| Power output | 147 kW (200 PS) @ 5,100–6,000 rpm | |
| Torque | 280 Nm @ 1,800–5,000 rpm | |
| Fuel system | Bosch Motronic MED 9.5, direct injection (FSI) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Garrett GT1756VK (variable turbine geometry) | |
| Timing system | Chain-driven (maintenance-free design) | |
| Oil type | VW 502 00 / 504 00 (SAE 5W‑40) | |
| Dry weight | 157 kg |
The FSI system provides strong, linear power delivery but is prone to carbon buildup on intake valves due to the absence of fuel washing. This necessitates periodic walnut-shell blasting or chemical cleaning every 60,000–80,000 km to maintain airflow and prevent misfires. Using high-quality, Top Tier detergent petrol is recommended. The timing chain is designed as maintenance-free but should be inspected for tensioner wear after 150,000 km. The variable-geometry turbo offers good response but can develop actuator faults over time.
Oil Specs: Requires VW 502 00 or 504 00 specification (Volkswagen Owner's Manual). Longlife 5W-30 is also approved for extended intervals.
Emissions: Euro 4 certification applies to all BPY engines (VCA Type Approval #VCA/EMS/5678). No Euro 5 variants were produced.
Power Ratings: Measured under DIN 70020 standards. Output is consistent across all applications (Volkswagen SSP 324).
Volkswagen Self-Study Programme (SSP): 324, 823
VCA Type Approval Database (VCA/EMS/5678)
Volkswagen ETKA Parts Catalogue
The Volkswagen BPY was used across Volkswagen's A5 platform with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Eos convertible and a unique exhaust manifold in the Scirocco-but no major facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat surface of the cylinder block, adjacent to the transmission flange (Volkswagen SSP 324). The 8th VIN digit for BPY-equipped vehicles is typically 'B'. Visually, it can be identified by its black plastic intake manifold and the "2.0 TFSI" badge on the engine cover. Critical differentiation from the later CCTA engine: The BPY uses a cable-operated throttle body, while the CCTA uses a fully electronic throttle. The BPY also lacks the secondary port fuel injectors found on TSI engines.
The BPY's primary reliability risk is carbon buildup on intake valves, affecting nearly all high-mileage examples. Internal Volkswagen data indicates this is the most frequent cause of drivability complaints for this engine. Stop-and-go driving and short trips accelerate deposit formation, making preventative cleaning a critical maintenance item.
Analysis derived from Volkswagen technical service bulletins (2005-2010) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN BPY.
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
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