The Audi DD is a 2,967 cc, V6 turbo — diesel engine produced between 2008 and 2013. It belongs to the Volkswagen Group's TDI engine family, specifically the EA897 series, designed for longitudinal mounting in premium and performance — oriented models. Featuring common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC), it delivers 176 kW (240 PS) in standard tune, with peak torque of 500 Nm available from 1,500 rpm.
Fitted to…
Production years 2008–2013 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5680).
The Audi DD is a 2,967 cc V6 turbo-diesel engineered for premium models (2008-2013). It combines common-rail direct injection with a variable-geometry turbocharger to deliver strong low-RPM performance and improved fuel efficiency. Designed to meet Euro 5 standards, it integrates advanced aftertreatment for clean operation.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,967 cc | |
Fuel type | Diesel | |
Configuration | V6, DOHC, 24-valve | |
Aspiration | Turbocharged with VGT | |
Bore × stroke | 83.0 mm × 95.5 mm | |
Power output | 176 kW (240 PS) @ 3,500–4,000 rpm | |
Torque | 500 Nm @ 1,500–2,500 rpm | |
Fuel system | Bosch CRS 2-20 common-rail (up to 1,800 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Garrett GT2256V) | |
Timing system | Double-row roller chain (long-life design) | |
Oil type | VW 505 01 / 507 00 (SAE 5W-40) | |
Dry weight | 198 kg |
The Audi DD was used across Audi's C6/D3/4L platforms with longitudinal mounting and shared within the Volkswagen Group for premium applications. This engine received platform-specific adaptations-integrated AdBlue tank in C6 and revised EGR routing in 4L-and from 2010 the updated C6 facelift adopted revised fuel pump cam followers to improve HPFP durability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The DD's primary reliability risk is high-pressure fuel pump (HPFP) wear, with elevated incidence in early production units. Internal Audi service data from 2012 indicated over 25% of pre-2010 units required HPFP replacement before 120,000 km, while UK DVSA records show SCR-related faults as a leading cause of Euro 5 MOT failures. Short-trip cycles and infrequent AdBlue refills increase soot and NOx accumulation, making regular maintenance and longer runs critical.
Analysis derived from Audi technical bulletins (2009-2013) and UK DVSA failure statistics (2010-2023). 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 DD is generally robust with proper maintenance. Early models (pre-2010) are prone to high-pressure fuel pump wear, especially with poor fuel quality. Post-2010 revisions improved HPFP durability. Using correct oil (VW 505 01) and regular longer runs help prevent DPF and EGR issues. With adherence to service schedules, 200,000 km+ longevity is achievable.
The most frequent issues are high-pressure fuel pump wear, AdBlue/SCR system faults, EGR and intake carbon buildup, and turbo actuator sticking. These are documented in Audi service bulletins. Fuel pump issues stem from lubrication and fuel quality; SCR faults often result from low AdBlue. Regular inspection and correct fluid use mitigate most risks.
The DD was used in the Audi A6 (C6), A8 (D3), and Q7 (4L) from 2008 to 2013. It appears as 3.0 TDI in all variants. All models feature common-rail injection, VGT, and SCR with AdBlue. It is not used in S or RS models. The engine was phased out in favour of EA897 variants with improved emissions control.
Yes. The DD responds well to ECU remapping, with stage 1 tunes typically adding +30-45 kW. The EA897 block and internals are strong, but increased power raises exhaust temperatures. Upgraded cooling and careful tuning are recommended. Reputable tuners offer lifetime warranties. Avoid excessive tuning without supporting modifications.
In real-world conditions, expect 7.5–8.5 L/100km (38–30 mpg UK) depending on model and driving style. The A6 3.0 TDI achieves up to 45 mpg UK on highways. Combined figures range from 35–42 mpg UK. SCR system and DPF regeneration slightly reduce efficiency in city driving. Use of AdBlue does not affect fuel economy.
Yes. The DD is an interference engine. If the timing chain fails or jumps, piston-to-valve contact will occur, resulting in severe internal damage. While the double-row roller chain is designed for long life, any signs of chain wear or tensioner failure must be addressed immediately to prevent catastrophic engine failure.
The DD requires VW 505 01 or 507 00 specification oil (typically SAE 5W-40). This formulation is critical for high-pressure fuel pump lubrication and DPF protection. Oil changes should be performed every 15,000 km or annually. Using non-compliant oil can lead to HPFP failure and DPF clogging.
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.