The Volkswagen ATN is a 1,390 cc, inline‑four turbocharged petrol engine produced between 2008 and 2015. It features gasoline direct injection (TSI), a single turbocharger, and dual overhead camshafts (DOHC). This compact engine was engineered for efficiency and responsiveness in smaller platforms, delivering 90 kW (122 PS) and 200 Nm of torque, providing strong low — end pull for urban driving.
Fitted to models such as the Polo (6R), Ibiza (6J), and Fabia (5J), the ATN w…
Volkswagen
Production years 2008–2015 meet Euro 5 standards .
The Volkswagen ATN is a 1,390 cc inline‑four turbocharged petrol engine engineered for superminis and small hatchbacks (2008-2015). It combines Turbo Stratified Injection (TSI) with a single turbocharger to deliver strong low-end torque and efficient operation. Designed to meet Euro 5 standards, it balances compact size with responsive performance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,390 cc | |
Fuel type | Petrol (Premium Unleaded Recommended) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 76.5 mm × 75.6 mm | |
Power output | 90 kW (122 PS) @ 5,000 rpm | |
Torque | 200 Nm @ 1,500–4,000 rpm | |
Fuel system | Bosch TSI (Turbo Stratified Injection), direct injection | |
Emissions standard | Euro 5 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single turbocharger (IHI or Garrett) | |
Timing system | Chain-driven (lower timing chain) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 112 kg |
The Volkswagen ATN was used across Volkswagen's Polo platform and shared with SEAT and Škoda under the MQB A0 architecture with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Fabia RS for enhanced handling. All adaptations are documented in OEM technical bulletins.
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The ATN's primary reliability consideration is the high-pressure fuel pump (HPFP), with potential for wear under suboptimal conditions. VW technical service bulletins note that using lower-grade fuel can accelerate wear. While not a high-failure item, diligent fuel quality and maintenance make long-term reliability excellent.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
Yes, the ATN is generally very reliable with proper care. Its main considerations are using premium fuel for the HPFP and addressing carbon buildup. The timing chain is robust. With diligent maintenance, these engines can easily surpass 150,000 miles without major issues.
The most common issues are carbon buildup on intake valves (a trait of TSI engines), potential wear on the high-pressure fuel pump if low-grade fuel is used, turbo wastegate rattle, and PCV system failure leading to oil leaks. These are well-documented in VW service literature.
The ATN engine was used in the Volkswagen Polo (6R, 2009-2014), SEAT Ibiza (6J, 2008-2015), and Škoda Fabia (5J, 2010-2014, including the RS variant). It was the 90 kW (122 PS) version of the 1.4L TSI engine.
Aftermarket ECU tuning is common on the ATN platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Fuel economy is very good for its performance. Expect around 40-45 mpg (US) in mixed driving. Highway driving can yield up to 50 mpg (US). Using premium fuel is recommended for optimal efficiency and engine health.
Yes. The ATN, like virtually all modern engines, is an interference design. If the timing chain were to fail catastrophically, valve and piston contact would occur, resulting in severe engine damage. Fortunately, the chain is very durable.
Volkswagen specifies oil meeting VW 502 00 or 504 00 standards, typically a 5W-40 synthetic. Using the correct specification is crucial for protecting the turbocharger and ensuring the longevity of the high-pressure fuel pump and timing chain.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
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