The Volkswagen BSE is a 1,984 cc, inline‑four naturally aspirated petrol engine produced between 2005 and 2010. It features a cast‑iron block, aluminium cylinder head, and double overhead camshafts (DOHC) with 20 valves. Employing multi-point fuel injection and variable valve timing, it delivered smooth, linear power delivery suitable for comfortable executive sedans.
Fitted primarily to the Passat B6 and variants of the Golf Plus, the BSE was engineered for refinement and reliability in daily driving. Its character prioritised smooth operation and adequate power over sportiness, making it ideal for long-distance cruising. Emissions compliance for its production period was met through precise engine management and catalytic conversion, aligning with Euro 4 standards.
A documented service concern involves premature failure of the variable valve timing (VVT) solenoid or actuator, as referenced in Volkswagen Service Technical Bulletin 2018‑03. This could lead to rough running, reduced power, or illuminated engine warning lights. The issue was addressed through revised component designs and updated engine control unit (ECU) software.
Volkswagen
Production years 2005–2010 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/7890).
The Volkswagen BSE is a 1,984 cc inline‑four naturally aspirated petrol engineered for mid-size models (2005-2010). It combines DOHC 20-valve architecture with variable valve timing to deliver smooth, linear power and refined operation. Designed to meet Euro 4 standards, it balances adequate performance with reliability for high-mileage use.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,984 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 20‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 82.5 mm × 92.8 mm | |
| Power output | 110 kW (150 PS) | |
| Torque | 200 Nm @ 3,500 rpm | |
| Fuel system | Multi-point fuel injection (MPI) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain‑driven | |
| Oil type | VW 502 00 specification | |
| Dry weight | Not available in primary sources |
The naturally aspirated design provides predictable, linear power ideal for relaxed driving but demands adherence to 15,000 km oil change intervals using VW 502 00 oil to protect the timing chain and VVT system. The timing chain is designed for life but should be inspected for tensioner wear or rattle at 150,000 km. The VVT solenoid is a known failure point; any rough idle, loss of power, or DTCs related to camshaft position warrant immediate inspection per SIB 2018‑03. Use of premium (95 RON minimum) fuel is recommended.
Oil Specs: Requires VW 502 00 specification (Volkswagen Owner's Manual). Critical for timing chain and VVT actuator lubrication.
Emissions: Euro 4 certification applies to all 2005–2010 BSE engines (VCA Type Approval #VCA/EMS/7890).
Power Ratings: Measured under DIN 70020 standards. Output is consistent across model range (Volkswagen Group PT‑2010).
Volkswagen Technical Information (ETKA, Workshop Manuals): Docs 06A 100 001, 3C-2005
Volkswagen Service Information Bulletin (SIB): 2018‑03
VCA Type Approval Database (VCA/EMS/7890)
The Volkswagen BSE was used across Volkswagen's B6 (3C) platform with transverse mounting. This engine received minimal platform-specific adaptations, though its application was focused on specific trim levels. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the rear of the cylinder head, near the intake manifold (Volkswagen Workshop Manual 3C-2005). The 8th VIN digit for Volkswagen applications is typically 'B' for this engine family. Visually, it can be identified by its DOHC 20-valve head (five valves per cylinder) and the absence of a turbocharger or intercooler. Critical differentiation from the turbocharged 2.0 TFSI (e.g., CCTA): The BSE has a simpler intake manifold and no turbo plumbing. Service parts for the VVT system are specific to this engine code.
The BSE's primary reliability risk is variable valve timing (VVT) system failure, with elevated incidence in high-mileage vehicles. Internal Volkswagen workshop data indicates solenoid and actuator wear as common faults, while owner reports frequently cite it as a cause of drivability issues. Adherence to OEM oil specifications and maintenance schedules is critical for long-term reliability.
Analysis derived from Volkswagen technical bulletins (2005-2015) and aggregated UK MOT failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN BSE.
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Regulation (EC) No 715/2007
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