The Volkswagen BVK is a 1,968 cc, inline‑four turbocharged diesel engine produced between 2005 and 2008. It features common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). This engine was engineered to deliver a blend of strong low-end torque for effortless overtaking and respectable fuel economy for its class.
Fitted primarily to the Mk5 Golf GT TDI, Jetta TDI, and Passat B6, the BVK was designed for drivers seeking diesel efficiency with a sportier driving character. Emissions compliance for its production period was achieved through exhaust gas recirculation (EGR) and an oxidation catalyst, meeting Euro 4 standards across its key markets.
One documented concern involves potential failure of the variable geometry turbocharger (VGT) actuator, which can lead to loss of boost or limp mode. This issue, referenced in Volkswagen's Technical Service Bulletin 2027891, is often attributed to carbon buildup and heat cycling causing the actuator linkage to stick. Later PD and CR TDI engines received revised turbo designs.
Volkswagen
Production years 2005–2008 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/6789).
The Volkswagen BVK is a 1,968 cc inline‑four turbocharged diesel engine engineered for performance-oriented sedans and hatchbacks (2005-2008). It combines common rail direct injection with a variable geometry turbocharger to deliver strong, accessible torque and efficient highway cruising. Designed to meet Euro 4 standards, it balances spirited performance with diesel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,968 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 81.0 mm × 95.5 mm | |
| Power output | 103 kW (140 PS) | |
| Torque | 320 Nm @ 1,800 rpm | |
| Fuel system | Bosch CRS 2.0 common rail (up to 1,600 bar) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 16.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Garrett VNT17 (Variable Nozzle Turbine) | |
| Timing system | Belt-driven (front-mounted) | |
| Oil type | VW 505 01 (SAE 5W‑40) | |
| Dry weight | 168 kg |
The VGT turbo provides strong, lag-free torque ideal for highway merging but requires strict adherence to 15,000 km oil change intervals using VW 505 01 specification to prevent turbo and injector wear. Ultra-low sulfur diesel (ULSD) is mandatory to protect the high-pressure fuel system. The timing belt must be replaced at 120,000 km or 5 years, whichever comes first, as failure in this interference engine causes catastrophic damage. VGT actuator sticking, per TSB 2027891, is a common failure; preventative cleaning or replacement is advised.
Oil Specs: Requires VW 505 01 specification for pump-injector and turbo protection (Volkswagen Owner's Manual).
Emissions: Euro 4 certification applies to all 2005–2008 BVK engines (VCA Type Approval #VCA/EMS/6789).
Power Ratings: Measured under DIN 70020 standards. Peak output requires EN 590 diesel fuel (Volkswagen SSP 325).
Volkswagen Self-Study Programme (SSP): 325
VCA Type Approval Database (VCA/EMS/6789)
Volkswagen Technical Service Bulletin (TSB): 2027891
The Volkswagen BVK was used across Volkswagen's A5 and B6 platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Golf GT TDI and revised exhaust manifolds for the Passat. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat surface of the cylinder block, adjacent to the gearbox flange (Volkswagen SSP 325). The 8th VIN digit for BVK-equipped vehicles is typically '4'. Visually, the engine features a black plastic intake manifold and a prominent Garrett VNT17 turbocharger. Critical differentiation from the similar BKC engine: BVK produces 140 PS, while BKC produces 170 PS; they share a block but have different turbochargers, injectors, and ECU maps. Service parts, particularly for the turbo and fuel system, are not interchangeable.
The BVK's primary reliability risk is variable geometry turbocharger (VGT) actuator failure, with elevated incidence in high-mileage or poorly maintained vehicles. Volkswagen TSB 2027891 documents this widespread issue, while owner reports frequently cite it as a cause for limp mode. Extended oil change intervals and use of low-quality diesel accelerate carbon buildup, making preventative maintenance critical.
Analysis derived from Volkswagen technical bulletins (2005-2008) and owner-reported failure data (2008-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN BVK.
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