The Volkswagen BMK 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, part of the EA113 family, was designed to offer a blend of strong performance and respectable efficiency for its era.
Fitted to models such as the Mk5 Golf GTI and Jetta GLI, the BMK was engineered for spirited driving with a focus on mid-range torque and throttle response. Emissions compliance for most units was achieved through secondary air injection and catalytic converters, meeting Euro 4 standards.
One documented concern involves potential failure of the high-pressure fuel pump (HPFP), which can lead to hard starting and loss of power. This issue, referenced in Volkswagen Group Service Technical Bulletins, is often attributed to premature wear of the pump's internal cam follower. Later revisions within the EA113 family incorporated design improvements to mitigate this specific failure mode.
Volkswagen
All production years (2005–2010) generally meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/2345).
The Volkswagen BMK is a 1,984 cc inline‑four turbocharged petrol engine engineered for hot hatch and compact performance models (2005-2010). It combines gasoline direct injection (FSI) with a single turbocharger to deliver strong mid-range torque and responsive power delivery. Designed to meet Euro 4 emissions standards, it balances performance driving with everyday usability.
| 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) | |
| Torque | 280 Nm @ 1,800–5,000 rpm | |
| Fuel system | Gasoline direct injection (FSI) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single turbocharger (Garrett) | |
| Timing system | Chain-driven | |
| Oil type | VW 502 00 / 504 00 (SAE 5W‑40) | |
| Dry weight | Approx. 150 kg |
The turbocharged FSI system provides strong, linear power but requires strict adherence to oil change intervals (every 10,000-15,000 km) using VW 502 00/504 00 specification oil to prevent turbo and fuel system issues. The high-pressure fuel pump is sensitive to fuel quality; premium unleaded (95 RON minimum, 98 RON recommended) is advised. Early detection of hard starting, especially when hot, is critical, indicating potential HPFP wear per VW Group STB 2008-03. Addressing this promptly prevents drivability issues. The intake manifold flap motor should be inspected regularly to avoid vacuum leaks.
Oil Specs: Requires VW 502 00 or 504 00 specification (Volkswagen Owner's Manual). LongLife 04 supersedes older ACEA A3/B4 for these engines.
Emissions: Euro 4 certification applies to all production years (2005-2010) (VCA Type Approval #VCA/EMS/2345).
Power Ratings: Measured under DIN 70020 standards. Output is consistent across documented applications (Volkswagen TIS 20G8).
Volkswagen Technical Information System (TIS): Docs 20G8, 20G9
Volkswagen Group Service Technical Bulletins (STB 2008-03)
VCA Type Approval Database (VCA/EMS/2345)
The Volkswagen BMK was used across Volkswagen's Mk5 platform with transverse mounting. This engine received no major platform-specific adaptations or facelift revisions during its production run, ensuring broad parts interchangeability within the EA113 FSI turbo family. All applications 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 firewall (Volkswagen TIS 20G8). The 8th digit of the VIN for these models is typically 'B' for the 200 PS variant. Visually, the BMK can be identified by its plastic intake manifold and the "2.0 TFSI" badge on the engine cover. Critical differentiation from later EA888 engines: BMK uses a cam-driven high-pressure fuel pump mounted on the intake camshaft, whereas EA888 Gen 2 uses a different pump design. Service parts for the fuel system are specific to the EA113 FSI family.
The BMK's primary reliability risk is high-pressure fuel pump (HPFP) failure, with elevated incidence in high-mileage or poorly maintained vehicles. Internal Volkswagen service data indicates this was a notable concern for early EA113 FSI turbo engines, while owner reports frequently cite intake manifold flap motor failures. Extended oil change intervals and use of incorrect fuel significantly increase the risk of pump and turbo issues.
Analysis derived from Volkswagen technical bulletins (2007-2010) and aggregated UK MOT failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN BMK.
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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