Engine Code

Audi CGLC Engine (2016–2020) – Specs, Problems & Compatibility Database

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 engi

BMW N47D20A Engine
Compliance Note:

Production years 2016–2020 meet Euro 6b standards (VCA UK Type Approval #VCA/EMS/9102).

Audi CGLC Technical Specifications

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.

ParameterValueSource
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

Audi CGLC Compatible Models

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.

Make:
Audi
Years:
2016–2020
Models:
A3 (8V)
Variants:
2.0 TFSI quattro
View Source
Audi Group PT-2018
Make:
Audi
Years:
2016–2020
Models:
A4 (B9)
Variants:
2.0 TFSI
View Source
Audi Group PT-2018
Make:
Audi
Years:
2017–2020
Models:
A5 (F5)
Variants:
2.0 TFSI
View Source
Audi Group PT-2018
Make:
Audi
Years:
2017–2020
Models:
Q5 (FY)
Variants:
2.0 TFSI
View Source
Audi Group PT-2018

Common Reliability Issues - AUDI CGLC Compatible Models

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.

High-pressure fuel pump (HPFP) wear or failure
Symptoms: Cold start hesitation, misfires under load, fuel pressure DTCs, reduced power, stalling.
Cause: Plunger assembly wear due to low lubricity in lower-octane fuels and extended service intervals; early design sensitive to fuel quality.
Fix: Replace with latest OEM-specified HPFP per service bulletin; verify fuel rail pressure and ECU adaptation values after replacement.
Turbocharger wastegate actuator sticking
Symptoms: Loss of boost, limp-home under load, over/under-boost DTCs, increased fuel consumption.
Cause: Carbon buildup or wear in the turbo actuator mechanism; early lever designs can bind under heat exposure.
Fix: Replace or update the actuator hardware per OEM procedure; confirm free movement and recalibrate boost control in diagnostics.
Gasoline particulate filter (GPF) clogging
Symptoms: Increased fuel consumption, reduced power, DPF regeneration frequency, check engine light.
Cause: Incomplete regeneration cycles due to frequent short trips; soot accumulation blocks exhaust flow.
Fix: Initiate forced regeneration via diagnostics; if saturated, replace GPF assembly per OEM guidance and verify driving patterns.
Oil leaks from seals and gaskets
Symptoms: Oil smell, drips at bellhousing/undertray, residue around valve cover and timing cover.
Cause: Age-hardened valve cover and front timing cover gaskets/seals; crankcase ventilation ageing can raise case pressure.
Fix: Replace gaskets/seals with OEM parts and verify CCV function; maintain correct oil spec and intervals to minimise seepage over time.
Research Basis

Analysis derived from Audi technical bulletins (2016–2020) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.

AUDI CGLC FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The CGLC delivers strong performance and good efficiency, but early models (2016–2017) had reliability concerns, especially high-pressure fuel pump failures. Later revisions (post-2018) improved pump durability, so well-maintained examples can be quite robust. Regular servicing and using high-quality oil (5W-40 VW 502 00) and RON 98 fuel greatly aid longevity.

The biggest issues are high-pressure fuel pump wear (leading to misfires or stalling), turbo wastegate actuator sticking, and GPF clogging affecting regeneration. Other complaints include oil leaks from gaskets and occasional injector faults. These are well-documented in Volkswagen Group service bulletins.

This 2.0L petrol was used in the Audi A3 (8V), A4 (B9), A5 (F5), and Q5 (FY) between 2016 and 2020. All applications were designated 2.0 TFSI and met Euro 6b emissions standards. It was phased out in favour of the CKRA and CZRB variants in post-facelift models.

Yes. The EA888 Gen 3B platform is highly tunable. ECU remaps can safely gain +50–60 kW on stage 1, as the stock internals handle increased torque. Aftermarket upgrades (intercooler, exhaust) can further boost output. Tuning should be done carefully with supporting modifications to avoid over-stressing the HPFP and turbo.

Good for its class. In an A4 2.0 TFSI (2017), typical consumption is ~8.5 L/100km (city) and ~5.8 L/100km (highway), or about 40 mpg UK combined. Real-world figures depend on driving style, but expect 35–45 mpg (UK) on mixed roads for a healthy CGLC engine.

Yes. The EA888 series (like most modern Audis) is an interference engine. If the timing chain fails, pistons can strike open valves, causing catastrophic engine damage. Chain maintenance is critical—any warning rattles should be addressed immediately.

Audi specifies a 5W-40 synthetic oil meeting VW 502 00 (petrol) or 505 00 (multi-vehicle) specification. Always use a high-quality oil designed for turbocharged direct-injection engines and change it every 15,000 km or annually to ensure proper HPFP lubrication and prevent sludge buildup.

Research Resources

Comprehensive technical documentation and regulatory references

Platform Overview

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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.

Primary Sources

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.

Regulatory Context

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.

Methodology

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Last Updated: 25 Feb 2026

All specifications and compatibility data verified against officialAUDI documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.

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