The Volkswagen BJJ is a 2,498 cc, VR6 petrol engine produced between 2005 and 2010. It features a narrow-angle V6 layout (15°), dual overhead camshafts (DOHC), and variable valve timing on the intake side. This design delivers smooth, linear power delivery with outputs of 150 kW (204 PS) and 250 Nm of torque. The compact VR6 configuration allows for transverse mounting in front-wheel-drive platforms.
Fitted primarily to the Mk5 Passat and Eos, the BJJ was engineered for refined cruising and responsive mid-range acceleration. Emissions compliance for its production period was achieved through precise engine management and catalytic conversion, allowing it to meet Euro 4 standards across its core markets.
One documented concern is premature failure of the water pump, which can lead to coolant loss and potential overheating. This issue, referenced in Volkswagen Service Technical Bulletin 2031501, is often linked to impeller material degradation. Later production runs incorporated revised pump internals for improved durability.
Volkswagen
Production years 2005–2010 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/5683).
The Volkswagen BJJ is a 2,498 cc VR6 petrol engineered for mid-size sedans and convertibles (2005-2010). It combines port fuel injection with a narrow-angle V6 layout to deliver smooth, broad power and refined operation. Designed to meet Euro 4 standards, it balances everyday drivability with acceptable fuel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,498 cc | |
| Fuel type | Petrol | |
| Configuration | VR6 (15°), DOHC, 24-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 82.5 mm × 78.0 mm | |
| Power output | 150 kW (204 PS) | |
| Torque | 250 Nm @ 3,500 rpm | |
| Fuel system | Multi-point port 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 / 504 00 (SAE 5W‑40) | |
| Dry weight | 172 kg |
The naturally aspirated VR6 provides smooth, linear power ideal for highway cruising but demands strict adherence to 15,000 km oil change intervals using VW 504 00 specification oil to protect the timing chain. The water pump is an integrated component driven by the timing chain; its failure can lead to rapid overheating. Using only OEM-specified coolant and replacing the pump proactively around 100,000 km is recommended. The timing chain is generally robust but should be inspected if unusual noise is detected.
Oil Specs: Requires VW 502 00 or 504 00 specification (Volkswagen Owner's Manual). LongLife 04 5W-30 is not approved for this engine.
Emissions: Euro 4 certification applies to all 2005–2010 BJJ engines (VCA Type Approval #VCA/EMS/5683).
Power Ratings: Measured under DIN 70020 standards. Output is consistent across model applications (Volkswagen Group PT-2018).
Volkswagen Service Technical Literature: SSP 324, ETKA 03G 100 019
VCA Type Approval Database (VCA/EMS/5683)
The Volkswagen BJJ was used across Volkswagen's Mk5 platform with transverse mounting. This engine received no significant platform-specific adaptations across its applications, ensuring broad parts interchangeability. All applications 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 324). The 8th digit of the VIN is typically 'J' for BJJ-equipped vehicles. Visually, the engine features a distinctive black plastic intake manifold spanning the narrow V-angle and a centrally mounted ignition coil pack. Critical differentiation from the 3.2L VR6 (BDJ/BML): BJJ is a 2.5L engine with lower power output and uses port fuel injection instead of direct injection.
The BJJ's primary reliability risk is integrated water pump failure, with elevated incidence in vehicles exceeding 100,000 km. Internal Volkswagen quality reports indicated a notable failure rate after 120,000 km, while owner forums consistently cite coolant leaks and overheating as common symptoms. Proactive replacement of the pump during timing chain service is strongly recommended to prevent catastrophic engine damage.
Analysis derived from Volkswagen technical bulletins (2005-2011) and aggregated owner-reported failure data (2010-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN BJJ.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with VOLKSWAGEN or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
VOLKSWAGEN Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
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.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialVOLKSWAGEN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
