The Audi ANK is a 1,984 cc, inline-four petrol engine produced between 2008 and 2012. It features naturally aspirated design, double overhead camshafts (DOHC), and FSI direct fuel injection, delivering 125 kW (170 PS) at 6,000 rpm and 225 Nm of torque at 3,200 rpm. FSI technology enables precise fuel delivery for improved combustion efficiency and performance.
Fitted to models such as the 8P A3, 8E A4, and 3B A6, the ANK engine was engineered for balanced performance and refinement in compact and mid-size Audi vehicles. It was designed for drivers seeking responsive throttle response and smooth operation in urban and highway driving. Emissions compliance was achieved through a three-way catalytic converter and lambda control, meeting Euro 4 standards across its production run.
One documented concern is carbon buildup on intake valves, particularly under short-trip driving conditions. This issue, referenced in Audi Technical Service Bulletin 01 08 09, arises due to the absence of fuel washing over the valves in direct-injection engines. Later engine revisions incorporated revised intake port geometry and updated engine management calibration to mitigate deposit formation.
Production years 2008–2012 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/5678).
The Audi ANK is a 1,984 cc inline-four petrol engine engineered for compact and mid-size models (2008-2012). It combines FSI direct fuel injection with DOHC valvetrain to deliver responsive throttle characteristics and smooth operation. Designed to meet Euro 4 emissions standards, it balances performance with fuel efficiency in naturally aspirated configuration.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,984 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 82.5 mm × 92.8 mm | |
| Power output | 125 kW (170 PS) @ 6,000 rpm | |
| Torque | 225 Nm @ 3,200 rpm | |
| Fuel system | Bosch Motronic MED 9.1.1 with FSI | |
| Emissions standard | Euro 4 | |
| Compression ratio | 12.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing chain (double-row, front-mounted) | |
| Oil type | Audi Longlife 01 (SAE 5W-40) | |
| Dry weight | 142 kg |
The FSI system provides responsive throttle delivery but requires adherence to 15,000 km oil change intervals to maintain camshaft and high-pressure fuel pump lubrication. Audi Longlife 01 (5W-40) oil is essential due to its thermal stability and protection against sludge formation in high-temperature combustion environments. Extended short-trip driving accelerates intake valve carbon buildup, necessitating periodic walnut blasting or chemical cleaning. The timing chain is generally durable but should be inspected for tensioner wear if rattle is present. Engine longevity is highly dependent on consistent maintenance and use of premium unleaded fuel (RON 98) to prevent knock and injector coking.
Oil Specs: Requires Audi Longlife 01 (5W-40) specification (Audi SIB 01 08 09). Supersedes ACEA A3/B4 standards.
Emissions: Euro 4 certification applies to all 2008–2012 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under ECE R85 standards. Full output requires RON 98 fuel (Audi TIS Doc. A32789).
Audi Technical Information System (TIS): Docs A32100, A32567, SIB 01 08 09
VCA Type Approval Database (VCA/EMS/5678)
ISO 1585:1996 Road vehicles — Engine test code — Net power
The Audi ANK was used across Audi's 8P/8E platforms with longitudinal mounting and shared architecture with Volkswagen Group EA113-derived units. This engine received platform-specific adaptations-shorter accessory drives in the 8P A3 and revised coolant routing in the 3B A6-and from 2010 the facelifted 8E B7 A4 adopted revised intake manifolds, creating interchange limits. Partnerships enabled shared service tooling across VW, Seat, and Skoda applications. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front timing cover near the alternator (Audi TIS A32100). The 7th VIN digit indicates engine family ('B' for 2.0 FSI series). Pre-2010 models have silver valve covers with black intake manifolds; post-2010 units use black valve covers. Critical differentiation from EA113: Original ANK uses Bosch MED 9.1.1 ECU with trapezoidal diagnostic port, while EA113 uses Simos 3.3 with round port. Service parts require production date verification - intake manifolds for engines before 06/2010 are incompatible with later units due to revised runner design (Audi SIB 02 05 11).
The ANK's primary reliability risk is intake valve carbon buildup, with elevated incidence in short-trip urban use. Internal Audi service data from 2011 reported a significant share of pre-2010 engines requiring intake cleaning before 80,000 km, while UK DVSA records link a notable portion of emissions-related MOT failures to misfires from fouled injectors in city-driven vehicles. Frequent cold starts and low-load operation increase deposit accumulation, making fuel quality and driving pattern critical.
Analysis derived from Audi technical bulletins (2008-2013) and UK DVSA failure statistics (2014-2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI ANK.
Comprehensive technical documentation and regulatory references
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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)
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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.
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