The Audi CTPB is a 1,968 cc, inline — four turbo — diesel engine produced between 2010 and 2018. It belongs to the Volkswagen Group's EA288 engine family, engineered for improved efficiency, reduced emissions, and enhanced refinement over its EA189 predecessor. Featuring common rail direct injection, variable geometry turbocharging (VGT), and DOHC valvetrain, it delivers 81 kW (110 PS) and 250 Nm of torque, with optimized low — end responsiveness for urban driving.
Fit…
Production years 2010–2015 meet Euro 5 standards; 2015–2018 models comply with Euro 6 .
The Audi CTPB is a 1,968 cc inline-four turbo-diesel engineered for compact and subcompact platforms (2010–2018). It combines common-rail direct injection with a variable geometry turbocharger to deliver responsive low-RPM torque and efficient urban operation. Designed to meet evolving emissions standards, it balances real-world drivability with regulatory compliance.
| 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 | 81 kW (110 PS) @ 3,750 rpm | |
Torque | 250 Nm @ 1,500–2,500 rpm | |
Fuel system | Bosch CRS 2-20 common-rail (up to 2,000 bar) | |
Emissions standard | Euro 5 (pre-2015), Euro 6 (2015–2018) | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Variable geometry turbo (Garrett GT1544V) | |
Timing system | Timing belt (interval: 150,000 km or 5 years) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 146 kg |
The Audi CTPB was used across Audi's 8X/8V/8U platforms with transverse mounting and shared within the Volkswagen Group for compact applications. This engine received platform-specific calibrations-fuel mapping in the A1 and enhanced cooling in the Q3-and from 2015, certain A3 8V facelift models adopted revised EGR routing, creating interchange limits. 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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The CTPB is generally reliable when maintained properly, though pre-2015 models show higher incidence of EGR coking. Timing belt integrity is critical—failure leads to bent valves due to interference design. Using high-quality diesel and adhering to oil and filter service intervals (every 15,000 km) significantly improves longevity. Well-maintained units regularly exceed 200,000 km.
The most documented issues are EGR valve/cooling clogs, timing belt failure, oil leaks from valve cover and turbo seals, and DPF regeneration issues. These are covered in Audi service bulletins, particularly TSB 2014-22 (EGR) and SIB 23 10 12 (timing belt). Regular maintenance prevents most failures.
The CTPB 2.0 TDI was used in the A1 (8X), A3 (8V), A4 (B8/B9), and Q3 (8U) from 2010 to 2018. It was also shared across the Volkswagen Group in Škoda Yeti and SEAT Ibiza models. All applications produce 81 kW (110 PS) and 250 Nm, meeting Euro 5 or Euro 6 emissions standards depending on model year.
Aftermarket ECU tuning is common on the CTPB 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. In an A3 2.0 TDI (110 PS), real-world consumption averages ~5.5 L/100 km (city) and ~4.2 L/100 km (highway), or about 52 mpg UK combined. Mixed driving typically yields 50–55 mpg (UK). Economy remains strong even with higher-mileage engines if DPF and EGR systems are functional.
Yes. The CTPB is an interference engine, meaning piston-to-valve contact occurs if timing is lost. A broken or slipped timing belt will likely cause bent valves and severe internal damage. Adhering to the 150,000 km or 5-year replacement interval is essential to prevent costly repairs.
Audi specifies SAE 5W-30 oil meeting VW 504 00 (for extended drain) or 507 00 (for diesel) standards. Using correct oil ensures turbo bearing protection and fuel system lubrication. Change oil every 15,000 km or annually to maintain engine health and prevent sludge buildup.
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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