The Audi CZDA is a 1,968 cc, inline-four turbo-diesel engine produced between 2008 and 2013. It forms part of the Volkswagen Group's EA189 engine family, designed for efficiency and responsive performance. Featuring common rail direct injection, variable geometry turbocharging (VGT), and DOHC valvetrain, it delivers 103 kW (140 PS) and 320 Nm of torque, with precise fuel metering enabling strong low-end pull for daily driving.
Fitted to models such as the A3 (8P), A4 (B7/B8), and Škoda Octavia Mk2, the CZDA was engineered for balanced performance, fuel economy, and emissions compliance. Emissions control is achieved via exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), allowing Euro 5 compliance across its production run. The engine's compact design supports transverse and longitudinal mounting.
One documented concern is high-pressure fuel pump (CP3) failure under low-sulfur conditions, highlighted in Audi Technical Service Bulletin 2011-037. Premature wear occurs due to reduced lubricity in ultra-low-sulfur diesel (ULSD). From 2011, revised pump calibration and updated injection control software were introduced to mitigate risk.
Production years 2008–2013 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Audi CZDA is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size platforms (2008–2013). It combines common-rail direct injection with a variable-geometry turbocharger to deliver responsive low-RPM torque and efficient highway cruising. Designed to meet Euro 5 standards, it balances performance 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 | 103 kW (140 PS) @ 3,500–4,000 rpm | |
| Torque | 320 Nm @ 1,750–2,500 rpm | |
| Fuel system | Bosch CRS 2-20 common-rail (up to 1,600 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 16.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Variable geometry turbo (Garrett GT1544V) | |
| Timing system | Timing belt (interval: 120,000 km or 5 years) | |
| Oil type | VW 504 00 / 507 00 (SAE 5W-30) | |
| Dry weight | 145 kg |
The VGT provides strong low-RPM torque ideal for urban driving but demands strict adherence to 15,000 km oil change intervals using VW 504 00/507 00 oil to prevent EGR and DPF clogging. The Bosch CP3 high-pressure pump requires EN 590 diesel with lubricity additives to avoid premature wear. Timing belt replacement is critical at 120,000 km or 5 years—neglect risks catastrophic interference failure. EGR cooler inspections are recommended every 60,000 km to prevent cracking. Post-2011 models benefit from updated pump calibration per Audi TSB 2011-037, reducing failure risk.
Oil Specs: Requires VW 504 00 / 507 00 specification (Audi TIS Doc. A34712). Supersedes ACEA B4/C3.
Emissions: Euro 5 certification applies to all CZDA models (2008–2013) (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards. Output consistent across markets with ULSD (EN 590) (Audi Group PT-2020).
Audi Technical Information System (TIS): Docs A34712, A35109, TSB 2011-037
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Audi CZDA was used across Audi's 8P/8E platforms with transverse mounting and shared within the Volkswagen Group for longitudinal applications. This engine received platform-specific adaptations-shorter intake manifolds in the A3 and revised EGR routing in the A4-and from 2011 updated fuel calibration to address pump reliability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front of the cylinder block, near the timing belt cover (Audi TIS A34712). The 8th VIN digit indicates engine type ('B' for 2.0 TDI EA189 family). Pre-2011 models use a Bosch CP3.3 pump with silver housing; post-2011 units have black-painted housings with revised calibration. Critical differentiation from other EA189 variants: CZDA has 320 Nm torque rating and specific ECU mapping (03L 907 113). Service parts require model-year verification—timing belts for pre-2010 A3s differ from B8 A4 applications (Audi TIS A34712).
The CZDA's primary reliability risk is high-pressure fuel pump wear, with elevated incidence in urban-driven vehicles with frequent short trips. Internal Audi field reports from 2012 indicated a significant share of pre-2011 pumps failing before 150,000 km, while UK DVSA records show increased EGR-related failures in stop-start traffic. Poor fuel quality and extended oil intervals increase pump and EGR stress, making fuel additives and timely maintenance 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 CZDA.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with AUDI or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
AUDI Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialAUDI documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
