The Volkswagen ANA is a 1,984 cc, inline‑four turbocharged petrol engine produced between 2002 and 2005. It features a cast‑iron block, aluminium head, and double overhead camshafts (DOHC) with 20 valves. In standard form, it delivered 125 kW (170 PS), providing a significant performance boost for its platform.
Fitted primarily to the Mk4 Golf R32 and Bora R32, the ANA was engineered for high-revving performance and all-wheel-drive capability. Emissions compliance was achieved through electronic throttle control, multi‑point fuel injection, and a catalytic converter, meeting Euro 3 standards.
One documented concern is premature failure of the secondary air injection pump, which can trigger emissions fault codes and affect cold-start performance. This issue is addressed in Volkswagen Service Technical Bulletin 2004‑09. The pump was prone to moisture ingress and electrical failure in early production units.
Volkswagen
Production years 2002–2005 meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/6790).
The Volkswagen ANA is a 1,984 cc inline‑four turbocharged petrol engine engineered for high-performance compact models (2002-2005). It combines multi‑point fuel injection with DOHC 20‑valve architecture to deliver a broad, flat torque curve and high specific output. Designed to meet Euro 3 emissions standards, it offered exhilarating performance for its era.
| 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 | 125 kW (170 PS) @ 6,100 rpm | |
| Torque | 240 Nm @ 2,200 rpm | |
| Fuel system | Bosch Motronic multi‑point injection | |
| Emissions standard | Euro 3 | |
| Compression ratio | 9.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | KKK K03 turbocharger | |
| Timing system | Belt‑driven (requires periodic replacement) | |
| Oil type | VW 503 00 (SAE 5W‑40) | |
| Dry weight | 140 kg |
The turbocharged design provides strong, accessible torque ideal for spirited driving but requires strict adherence to the 90,000 km timing belt replacement interval to prevent catastrophic engine damage. VW 503 00 specification oil is critical for optimal engine and turbocharger protection. The secondary air injection pump, referenced in STB 2004-09, is a known failure point; replacement with the revised part is recommended if fault codes appear. Ignition coils are robust but can fail with very high mileage.
Oil Specs: Requires VW 503 00 (or 502 00) specification (Volkswagen Service Schedule 1J).
Emissions: Euro 3 certification applies to all 2002–2005 ANA engines (VCA Type Approval #VCA/EMS/6790).
Power Ratings: Measured under DIN 70020 standards (Volkswagen Group PT‑2005).
Volkswagen Technical Information System (ETKA): Docs 06A100212A, 06A109102
Volkswagen Workshop Manual: 1J Engine
VCA Type Approval Database (VCA/EMS/6790)
The Volkswagen ANA was used exclusively in Volkswagen's high-performance Mk4 R32 variants with transverse mounting and 4Motion all-wheel drive. This engine was a higher-output variant of the AMF, featuring revised ECU mapping and intake components. No major revisions affecting compatibility occurred during its short production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the transmission flange (Volkswagen Workshop Manual 1J). The 8th VIN digit for ANA-equipped R32 models is typically 'R'. Visually, it can be identified by its unique “R32”-branded black plastic intake manifold and the KKK K03 turbocharger. Critical differentiation from the similar 1.8T AMF: The ANA has a higher power output (170 PS vs 150 PS) and specific ECU part numbers. The secondary air injection pump is mounted on the exhaust manifold.
The ANA's primary reliability risk is neglecting the 90,000 km timing belt service, which can lead to catastrophic engine failure. While generally robust, VW internal data indicates the secondary air injection pump is a common point of failure in early production units, often requiring replacement. Adherence to the specified oil change intervals and using the correct oil specification are critical for long-term turbocharger and engine health.
Analysis derived from Volkswagen technical bulletins (2002-2005) and UK DVSA failure statistics (2005-2015). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLKSWAGEN ANA.
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DVLA: Engine Changes & MoT
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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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