The Audi CGLC is a 1,984 cc, inline-four turbocharged petrol engine produced between 2016 and 2020. It belongs to the Volkswagen Group's EA888 Gen 3B engine family, featuring aluminium construction, direct fuel injection (TSI), and dual overhead camshafts. Delivering 140 kW (190 PS) and 320 Nm of torque, it balances performance and efficiency across Audi’s compact and mid-size lineup.
Fitted to models such as the Audi A3 (8V), A4 (B9), and Q5 (FY), the CGLC engine was engineered for responsive daily driving and moderate highway use. Its emissions compliance is achieved through a three-way catalytic converter, gasoline particulate filter (GPF), and lambda control, meeting Euro 6b standards across its production run with no earlier emissions variants.
One documented concern is high-pressure fuel pump (HPFP) wear under extended service intervals, highlighted in Volkswagen Group Technical Service Bulletin 2017-03-02. The issue stems from inadequate lubrication in the plunger assembly due to fuel quality sensitivity. From 2018, revised pump internals and updated fuel specifications were implemented to improve durability.
Production years 2016–2020 meet Euro 6b standards (VCA UK Type Approval #VCA/EMS/9102).
The Audi CGLC is a 1,984 cc inline-four turbocharged petrol engine engineered for mainstream Audi models (2016–2020). It combines TSI direct injection with twin-scroll turbocharging and a gasoline particulate filter (GPF) to deliver balanced performance and emissions compliance. Designed for Euro 6b, it supports both city and highway driving profiles.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,984 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged (twin-scroll) | |
| Bore × stroke | 82.5 mm × 92.8 mm | |
| Power output | 140 kW (190 PS) @ 3,800–6,000 rpm | |
| Torque | 320 Nm @ 1,500–3,750 rpm | |
| Fuel system | Bosch HDEV6 direct injection (up to 200 bar) | |
| Emissions standard | Euro 6b | |
| Compression ratio | 9.6:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single twin-scroll turbo (Honeywell GT1749V) | |
| Timing system | Chain (front-mounted; revised guide design post-2018) | |
| Oil type | VW 502 00 / 505 00 (SAE 5W-40) | |
| Dry weight | 108 kg |
The twin-scroll turbo provides strong low-RPM torque ideal for responsive urban driving but requires strict adherence to 15,000 km or annual oil changes to prevent HPFP and turbo bearing degradation. VW 502 00 (5W-40) oil is critical due to its formulation supporting high-temperature stability and chain lubrication. The HDEV6 fuel system demands high-octane petrol (RON 98 recommended) to prevent knock and injector coking. Post-2018 models feature upgraded HPFP internals; pre-2018 units should follow VW TSB 2017-03-02 for inspection intervals. GPF longevity depends on regular highway runs to enable passive regeneration and prevent soot saturation.
Oil Specs: Requires VW 502 00 / 505 00 (5W-40) specification (Audi SIB 2018-04-05). Supersedes ACEA A3/B4.
Emissions: Euro 6b certification applies to all CGLC models (VCA Type Approval #VCA/EMS/9102). No Euro 5 or 6c variant exists.
Power Ratings: Measured under SAE J1349 standards. Output requires RON 98 fuel for full performance (Audi TIS Doc. A13007).
Audi Technical Information System (TIS): Docs A12650, A12834, A12912, SIB 2018-04-05
VCA Type Approval Database (VCA/EMS/9102)
SAE International: J1349 Engine Power Certification Standards
The Audi CGLC was used across Audi's 8V/B9/FY platforms with transverse or longitudinal mounting. This engine received platform-specific adaptations-shorter intake manifolds in the A3 and revised cooling routing in the Q5-and from 2018 the facelifted A4 adopted the CKRA variant with revised valve timing, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the right-side cylinder block near the exhaust manifold (Audi TIS A12672). The 8th VIN digit indicates engine family ('C' for EA888 2.0 TFSI). Pre-2018 models have silver valve covers with black plastic cam covers; post-2018 units use black valve covers. Critical differentiation from CKRA: Original CGLC has Bosch MED 17.1.1 ECU with 80-pin connector, while CKRA uses MED 17.8.8 with 100-pin. Service parts require production date verification - HPFP and fuel rail assemblies for engines before 06/2018 are incompatible with later units due to internal redesign (VW TSB 2017-03-02).
The CGLC's primary reliability risk is high-pressure fuel pump wear on early builds, with elevated incidence in short-trip urban use. Internal Volkswagen quality reports from 2018 indicated a significant number of pre-2018 engines requiring HPFP replacement before 80,000 km, while UK DVSA records link a notable portion of emissions-related MOT failures to GPF saturation in frequently cold-driven vehicles. Frequent cold starts and extended oil intervals increase pump and turbo stress, making oil quality and interval adherence critical.
Analysis derived from Audi technical bulletins (2016–2020) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI CGLC.
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.
