The Audi CGWC is a 1,968 cc, inline — four turbo — diesel engine produced between 2015 and 2023. It belongs to the Volkswagen Group's EA288 evo engine family, designed for improved efficiency and emissions compliance. Featuring common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC), it delivers 110 kW (150 PS) and 360 Nm of torque, offering a balance of responsive performance and fuel economy.
Fitted to models such as the A…
Production years 2015–2018 meet Euro 6c standards; 2019–2023 models comply with Euro 6d-TEMP depending on market .
The Audi CGWC is a 1,968 cc inline-four turbo-diesel engineered for premium mid-size and luxury models (2015–2023). It combines common-rail direct injection with a variable geometry turbocharger and integrated exhaust manifold to deliver strong low-end torque and smooth refinement. Designed to meet stringent Euro 6c and Euro 6d-TEMP standards, it balances performance with modern emissions requirements.
| 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 | 110 kW (150 PS) @ 3,250–4,200 rpm | |
Torque | 360 Nm @ 1,500–3,000 rpm | |
Fuel system | Bosch HPI8 high-pressure injection (up to 2,500 bar) | |
Emissions standard | Euro 6c (pre-2019); Euro 6d-TEMP (2019–2023) | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled, dual-circuit thermal management | |
Turbocharger | Single variable-geometry turbo (Garrett), water-cooled | |
Timing system | Chain-driven (front-mounted, two-stage) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 145 kg |
The Audi CGWC was used across Audi's B9/C7/C8/FY platforms with longitudinal mounting in quattro-equipped variants and transverse in front-wheel-drive models. This engine received platform-specific adaptations-integrated exhaust manifold in the A4 B9 and revised SCR layout in the Q5 FY-and from 2019 the facelifted A6 C8 adopted Euro 6d-TEMP tuning with updated emissions calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
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 CGWC is generally reliable when maintained properly, though pre-2019 models are prone to injector coking in idle-heavy usage. Post-2019 revisions with improved nozzle coatings enhance durability. Regular oil changes with VW 504 00/507 00 oil and periodic injector inspection significantly extend service life. Well-maintained units can exceed 250,000 km.
The most frequent issues are high-pressure injector coking, DPF regeneration failure, turbo actuator sticking, and oil leaks from the valve cover. These are documented in Audi service bulletins. Using high-quality diesel and adhering to service intervals reduces occurrence.
The CGWC engine was used in the Audi A4 (B9), A6 (C7, C8), A7 (C8), and Q5 (FY) from 2015 to 2023. It powered 2.0 TDI 150 PS variants. Euro 6c models (pre-2019) lack RDE certification, while Euro 6d-TEMP versions (2019+) include real-world emissions testing compliance.
Aftermarket ECU tuning is common on the CGWC 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 A4 2.0 TDI (150 PS), combined consumption is ~4.5 L/100km (~62 mpg UK). Highway driving can achieve ~4.0 L/100km (~70 mpg UK), while city use ranges 5.5–6.2 L/100km (~45–51 mpg UK). Real-world figures depend on driving style, but 50–60 mpg UK is typical for mixed use.
Yes. The CGWC is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic internal damage. The chain is durable but should be inspected beyond 200,000 km. Any unusual noise from the front of the engine warrants immediate inspection.
Audi specifies VW 504 00 / 507 00 (SAE 5W-30) synthetic oil. Change intervals should not exceed 15,000 km or 1 year. This oil is critical for turbo, DPF, SCR, and injector longevity. Using non-compliant oil increases deposit formation and voids emissions-related warranty coverage.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
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.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
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.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.