The Volkswagen AXW is a 1,984 cc, inline‑four turbocharged petrol engine produced between 2003 and 2008. It features a cast iron block, aluminium cylinder head, double overhead camshafts (DOHC), and variable valve timing (VVT) on the intake camshaft. This engine, part of the EA113 family, delivered 147 kW (200 PS) and 280 Nm of torque, with its turbocharger providing strong mid-range pull for spirited driving.
Fitted primarily to the Mk5 Golf GTI and early Audi A3 8P models, the AXW was engineered for high performance and driver engagement. Emissions compliance was achieved through sequential fuel injection and a sophisticated engine management system, meeting Euro 4 standards for its production period.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) cam follower, potentially leading to pump failure and engine damage. This is referenced in Volkswagen Group Service Technical Bulletin 2010‑08. The issue stems from insufficient lubrication under high load, causing accelerated wear. Later revisions incorporated improved cam follower materials and revised lubrication channels.
Volkswagen
Production years 2003–2008 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/5680).
The Volkswagen AXW is a 1,984 cc inline‑four turbocharged petrol engineered for performance hatchbacks and sedans (2003-2008). It combines a robust cast iron block with variable valve timing to deliver high-revving power and strong mid-range torque. Designed to meet Euro 4 standards, it prioritizes driver engagement over ultimate fuel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,984 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 20‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 82.5 mm × 92.8 mm | |
| Power output | 147 kW (200 PS) @ 5,100 rpm | |
| Torque | 280 Nm @ 1,800 rpm | |
| Fuel system | Bosch Motronic ME 7.5 sequential injection with direct injection | |
| Emissions standard | Euro 4 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Garrett GT2560R (K03 variant) | |
| Timing system | Chain-driven | |
| Oil type | VW 502 00 / 505 00 (SAE 5W‑40) | |
| Dry weight | 162 kg |
The turbocharged setup delivers exhilarating acceleration but demands premium unleaded fuel (RON 98) to prevent knocking and protect internals. Strict adherence to 10,000 km oil change intervals with VW 502 00/505 00 spec oil is critical for turbo and fuel system longevity. The high-pressure fuel pump cam follower is a known wear item; any rough running or fuel pressure-related fault codes should be inspected immediately per VW Group STB 2010-08. The engine's high specific output necessitates allowing the turbo to cool post-drive to prevent oil coking.
Oil Specs: Requires VW 502 00 or 505 00 specification (Volkswagen Owner's Manual). ACEA A3/B4 is the minimum acceptable standard.
Emissions: Euro 4 certification applies to all 2003-2008 AXW engines (VCA Type Approval #VCA/EMS/5680).
Power Ratings: Measured under DIN 70020 standards. Peak output requires RON 98 fuel (Volkswagen TIS Doc. 2004-01).
Volkswagen Technical Information System (TIS): Docs 2004-01
Volkswagen Group Service Technical Bulletin (STB): 2010-08
VCA Type Approval Database (VCA/EMS/5680)
The Volkswagen AXW was used across Volkswagen and Audi's Mk5 platforms with transverse mounting. This engine received platform-specific adaptations-different engine mounts and exhaust manifolds for the GTI and A3-creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the thermostat housing (Volkswagen TIS 2004-01). The 8th VIN digit for Golf GTI models is typically 'G'. The AXW is visually identified by its distinctive intake manifold and the Garrett K03 turbocharger. Critical differentiation from the BWA engine: The AXW uses a different ECU map and has a unique part number for its high-pressure fuel pump. Service parts, particularly for the fuel system, are specific to the AXW and not interchangeable with later variants without verification (VW Group STB 2010-08).
The AXW's primary reliability risk is high-pressure fuel pump (HPFP) cam follower wear, with elevated incidence in high-mileage or poorly maintained examples. VW Group internal data indicated a notable failure rate after 100,000 km, while owner club surveys frequently cite ignition coil failures. Aggressive driving and infrequent oil changes accelerate wear, making preventative maintenance critical.
Analysis derived from Volkswagen technical bulletins (2004-2010) and aggregated owner club failure data (2010-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN AXW.
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Regulation (EC) No 715/2007
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