The Audi CCDA is a 1,968 cc, inline — four turbo — diesel engine produced between 2008 and 2012. It features common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC). In standard tune, it delivers 103 kW (140 PS) and 320 Nm of torque, serving as a core diesel unit in Audi's compact and mid — size lineup.
Fitted to models such as the A3 (8P), A4 (B7/B8), and A6 (C6), the CCDA was engineered for balanced performance, fuel economy, and r…
Production years 2008–2009 meet Euro 4 standards; 2010–2012 models comply with Euro 5 depending on market .
The Audi CCDA is a 1,968 cc inline-four turbo-diesel engineered for compact and executive models (2008–2012). It combines common-rail direct injection with a variable geometry turbocharger to deliver responsive low-end torque and motorway efficiency. Designed to meet Euro 4 and Euro 5 emissions standards, it balances real-world drivability with regulated environmental performance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged (VGT) | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 103 kW (140 PS) @ 4,000 rpm | |
Torque | 320 Nm @ 1,500–2,500 rpm | |
Fuel system | Bosch CRS 2.0 common rail (up to 1,600 bar) | |
Emissions standard | Euro 4 (pre-2010); Euro 5 (2010–2012) | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Garrett GT1544V) | |
Timing system | Timing belt (service interval 120,000 km) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 148 kg |
The Audi CCDA was used across Audi's 8P/B7/B8 platforms with longitudinal mounting and shared architecture with Volkswagen and Škoda transverse applications. This engine received platform-specific adaptations-shorter intake manifolds in the A3 and revised EGR routing in the A6-and from 2010 the facelifted A4 B8 adopted updated DPF regeneration logic, creating software compatibility limits. Partnerships enabled Volkswagen's 2.0 TDI CR and Škoda's 2.0 TDI to use identical core architecture. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The CCDA is fundamentally robust with good torque and efficiency, but long-term reliability depends heavily on maintenance. Early models (2008–2010) are prone to HPFP wear if fuel levels were frequently low. Post-2010 revisions and adherence to service schedules improve longevity. Using EN 590 diesel and Audi Longlife-04 oil at 15,000 km intervals is essential for durability.
Key issues include high-pressure fuel pump failure due to low fuel levels, timing belt wear if service intervals are exceeded, EGR cooler clogging from city driving, and oil leaks from ageing gaskets. These are documented in Audi service bulletins and field reports, with HPFP and EGR being the most frequent repair items.
The CCDA 2.0 TDI 140 PS was used in the Audi A3 (8P, 2008–2012), A4 (B7/B8, 2008–2012), and A6 (C6, 2008–2011). It was also shared with Volkswagen (Golf Mk6) and Škoda (Superb II) under the same architecture. Most UK models from 2010 onward meet Euro 5 emissions standards.
Aftermarket ECU tuning is common on the CCDA 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.
Excellent for its era. In an A4 B8 2.0 TDI, real-world consumption is ~5.8 L/100km (city), ~4.3 L/100km (highway), achieving ~60 mpg UK combined. Smaller A3 models often exceed 65 mpg UK on motorways. Expect 55–65 mpg UK in mixed driving with a well-maintained engine and modern ULSD fuel.
Yes, the CCDA is an interference engine. If the timing belt fails or jumps, pistons will collide with open valves, resulting in severe internal damage. This makes strict adherence to the 120,000 km belt replacement interval absolutely critical. Any signs of belt wear should prompt immediate replacement.
Audi specifies 5W-30 synthetic oil meeting Longlife-04 standard. This formulation ensures proper lubrication of the HPFP and turbocharger. Oil must be changed every 15,000 km or annually to prevent sludge buildup and maintain fuel system health. Using non-compliant oil voids component longevity and increases failure risk.
Comprehensive technical documentation and regulatory references
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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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