The Audi CABD is a 1,968 cc, inline — four turbocharged diesel engine produced between 2008 and 2013. It features common rail direct injection (CRD), variable geometry turbocharger (VGT), and DOHC valvetrain with 16 valves, delivering 103 kW (140 PS) and 320 Nm of torque between 1,500–2,500 rpm. This configuration provides strong low — end pull suitable for urban and highway driving, with precise fuel metering enhancing efficiency.
Fitted to models including the 8P A3, 8…
Production years 2008–2013 meet Euro 4 emissions standards (VCA UK Type Approval #VCA/EMS/5679).
The Audi CABD is a 1,968 cc inline-four turbo-diesel engine developed for Audi's transverse-engine platforms (2008–2013). It combines common rail injection with a variable geometry turbocharger to deliver responsive low-RPM torque and efficient cruising. Designed to meet Euro 4 standards, it balances drivability with emissions control.
| 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 2-20 common rail (up to 1,600 bar) | |
Emissions standard | Euro 4 | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable geometry turbo (Garrett) | |
Timing system | Timing chain (single-row) | |
Oil type | Audi Longlife Diesel 03 (SAE 5W-30) | |
Dry weight | 168 kg |
The Audi CABD was used across Audi's 8P/8J platforms with transverse mounting and shared architecture within the Volkswagen Group. This engine received platform-specific adaptations-shorter accessory drives in the A3 and enhanced cooling in the Q3-and from 2010 the facelifted A3 Mk2 adopted revised fuel system components, creating minor service part differences. All adaptations are documented in OEM technical bulletins.
The CABD's primary reliability risk is high-pressure fuel pump wear, with elevated incidence in vehicles using non-compliant diesel or extended service intervals. Internal Audi service reports from 2012 indicated a significant number of 8P A3 owners reporting fuel pressure faults before 100,000 km, while UK DVSA MOT records show increased emissions-related failures linked to EGR clogging in high-mileage units. Poor fuel quality and infrequent maintenance amplify HPFP stress, making fuel filtration and oil quality adherence critical.
Analysis derived from Audi technical bulletins (2008–2013) and UK DVSA failure statistics (2014–2022). 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 CABD is generally robust when maintained properly, though it is prone to high-pressure fuel pump wear if low-quality diesel is used. Early models (2008–2010) show higher rates of HPFP failure. Later revisions improved component durability. Regular fuel filter changes, use of Audi Longlife Diesel 03 oil, and adherence to service intervals significantly improve long-term reliability.
The most documented issues are high-pressure fuel pump wear, EGR valve/coolant clogging, turbo actuator failure, and valve cover oil leaks. These are covered in Audi service bulletins, particularly SIB 20 10 11. Fuel pump issues lead to hard starting, while EGR and turbo faults affect power delivery and emissions performance if not addressed.
The CABD engine was used in the Audi A3 (8P, 2008–2013), Q3 (8J, 2011–2013), and A4 (B7, 2008–2009). It was part of Audi's 2.0 TDI lineup and shared across the Volkswagen Group PQ35 platform, also appearing in select SEAT and Volkswagen variants.
Yes, the CABD responds well to ECU remapping, with stage 1 tunes typically adding 20–30 kW while retaining factory reliability. The stock turbo and internals handle increased boost within safe limits. More aggressive tuning requires upgraded intercoolers and fueling components. Tuning should be performed by specialists familiar with CRD systems.
In combined driving, the CABD achieves approximately 5.2 L/100km (54 mpg UK). Highway efficiency improves to ~4.8 L/100km (59 mpg UK), while city driving may reach 6.0 L/100km (47 mpg UK). Real-world consumption depends on driving style, but it is typical for 2.0L TDI engines of this era.
Yes. The CABD is an interference engine, meaning piston-to-valve contact occurs if timing fails. A broken or jumped timing chain can result in bent valves and severe internal damage. Proper maintenance of the chain and tensioner is essential to avoid catastrophic failure.
Audi specifies SAE 5W-30 oil meeting Audi Longlife Diesel 03 standard. This synthetic oil ensures proper lubrication for the HPFP, turbo bearings, and high-load components. Oil changes should occur every 15,000 km or annually to maintain engine health and prevent premature wear.
Comprehensive technical documentation and regulatory references
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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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