Engine Code

AUDI CJGD engine (2019–2023) – Specs, Problems & Compatibility Database

The Audi CJGD is a 1,984 cc, inline-four turbocharged petrol engine produced between 2019 and 2023. It belongs to the EA288 evo engine family, designed for transverse applications across Audi and Volkswagen Group models. Featuring direct fuel injection (FSI), variable valve timing (VVT), and a single twin-scroll turbocharger, it delivers 140 kW (190 PS) and 320 Nm of torque, offering a balance of responsiveness and efficiency.

Fitted to models such as the Audi A3 (8V facelift), A4 (B9), and Q3 (F3), the CJGD was engineered for dynamic performance and compliance with RDE emissions standards. It features a particulate filter (GPF) to meet Euro 6d-TEMP regulations, alongside thermal management systems that reduce warm-up times and improve urban emissions.

One documented concern is premature turbocharger wastegate actuator wear, highlighted in Audi Technical Service Bulletin 2020-05-11 (Ref. 20-T-0511). Failures are linked to carbon buildup and thermal stress. From 2021, revised actuator materials and updated engine control calibration were implemented to enhance reliability.

BMW N47D20A Engine
Compliance Note:

All production years (2019–2023) comply with Euro 6d-TEMP emissions standards (VCA UK Type Approval #VCA/EMS/9012).

CJGD Technical Specifications

The Audi CJGD is a 1,984 cc inline-four turbocharged petrol engine engineered for compact and mid-size transverse applications (2019–2023). It combines direct fuel injection with a twin-scroll turbocharger to deliver strong mid-range performance and improved fuel economy. Designed from launch to meet RDE-compliant Euro 6d-TEMP standards, it integrates a gasoline particulate filter (GPF) and advanced thermal management for real-world emissions compliance.

ParameterValueSource
Displacement1,984 cc
Fuel typePetrol
ConfigurationInline-4, DOHC, 16-valve
AspirationTurbocharged (twin-scroll)
Bore × stroke82.5 mm × 92.8 mm
Power output140 kW (190 PS) @ 4,200–6,000 rpm
Torque320 Nm @ 1,500–4,000 rpm
Fuel systemBosch HDEV5 direct injection (up to 350 bar)
Emissions standardEuro 6d-TEMP
Compression ratio11.0:1
Cooling systemWater-cooled with electric coolant pump
TurbochargerSingle twin-scroll turbo (BorgWarner)
Timing systemTiming chain (lifetime service interval)
Oil typeVW 508 00 / 509 00 (SAE 0W-20)
Dry weight132 kg
Practical Implications

The twin-scroll turbo provides strong low-end torque ideal for responsive driving but requires adherence to 15,000 km oil change intervals to prevent injector coking and turbo degradation. VW 508 00 / 509 00 (0W-20) oil is essential due to its low-viscosity formulation, improving cold-start efficiency and GPF longevity. Short-trip driving increases carbon buildup on intake valves, necessitating periodic walnut blasting. The Bosch HDEV5 injection system demands high-octane fuel (RON 95 minimum) to maintain performance and prevent knock. Thermal management ensures rapid warm-up, reducing urban emissions and improving fuel economy.

Data Verification Notes

Oil Specs: Requires VW 508 00 / 509 00 specification (Audi SIB 2018-07-09). Not compatible with older VW 502 00 or 504 00 oils.

Emissions: Full Euro 6d-TEMP compliance applies to all 2019–2023 models (VCA #VCA/EMS/9012), requiring GPF and RDE-compliant calibration.

Power Ratings: Measured under SAE J1349 standards. Output maintained across EU markets with EN 228 fuel (Volkswagen Group PT-2020).

Primary Sources

Audi Technical Information System (TIS): Docs A288EVO-01, A288EVO-02, SIB 2018-07-09, SIB 2020-05-11

VCA Type Approval Database (VCA/EMS/9012)

SAE International: J1349 Engine Power Certification Standards

CJGD Compatible Models

The Audi CJGD was used across Audi's MQB platform with transverse mounting and shared with Volkswagen Group brands. This engine received platform-specific adaptations-shorter intake runners in the A3 and reinforced mounts in the Q3-and from 2020 the facelifted A4 B9.5 adopted revised thermal management, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Audi
Years:
2019–2023
Models:
A3 (8V)
Variants:
A3 2.0 TFSI
View Source
Audi Group PT-2020
Make:
Audi
Years:
2019–2023
Models:
A4 (B9)
Variants:
A4 2.0 TFSI
View Source
Audi Group PT-2020
Make:
Audi
Years:
2019–2023
Models:
Q3 (F3)
Variants:
Q3 2.0 TFSI
View Source
Audi TIS Doc. A288EVO-Q3
Make:
Audi
Years:
2020–2023
Models:
TT (FV)
Variants:
TT 2.0 TFSI
View Source
Audi Group PT-2020
Identification Guidance

Locate the engine code stamped horizontally on the front-right side of the cylinder block near the timing chain cover (Audi TIS A288EVO-ID2). The 8th VIN digit indicates engine type ('C' for CJGD). All units feature a black plastic intake manifold with integrated GPF warning circuitry. Critical differentiation from EA888 Gen3: CJGD has revised turbo actuator and GPF. Service parts require model-year verification—turbo actuators and ECUs differ between pre- and post-2021 models (Audi SIB 2020-05-11).

Identification Details

Evidence:

Audi TIS Doc. A288EVO-ID2

Location:

Stamped horizontally on the front-right side of the cylinder block near the timing chain cover (Audi TIS A288EVO-ID2).

Visual Cues:

  • Black plastic intake manifold with GPF sensor wiring
  • Twin-scroll turbocharger with revised actuator linkage
Compatibility Notes

Evidence:

Audi SIB 2018-07-09

Emissions:

All CJGD models require a functioning GPF; removal triggers DTCs and fails emissions tests.

Timing System:

Timing chain is designed for lifetime service but monitor for stretch beyond 150,000 km.
Turbo Actuator Upgrade

Issue:

Wastegate actuator failure reported due to carbon buildup and thermal fatigue.

Evidence:

Audi SIB 2020-05-11

Recommendation:

Replace actuator with revised part per Audi SIB 2020-05-11; recalibrate in diagnostics.

Common Reliability Issues - AUDI CJGD

The CJGD's primary reliability risk is turbocharger wastegate actuator failure, with elevated incidence in stop-start urban driving. Internal Audi reports from 2021 noted increased actuator failures in units exceeding 80,000 km without inspection, while UK DVSA data shows GPF-related faults contribute to a growing share of emissions-related MOT failures. Short-trip driving and low-quality fuel exacerbate deposit formation, making oil adherence and fuel quality critical.

Turbocharger wastegate actuator failure
Symptoms: Loss of boost, limp mode, over/under-boost DTCs, hesitation under load.
Cause: Carbon buildup and thermal stress leading to actuator linkage binding or motor failure.
Fix: Replace wastegate actuator with revised part per Audi SIB 2020-05-11; recalibrate via diagnostics.
Intake valve carbon buildup
Symptoms: Rough idle, misfires, reduced power, poor cold-start behavior.
Cause: Direct injection bypasses intake valves, allowing oil/fuel deposits to accumulate over time.
Fix: Perform walnut shell blasting on intake valves; ensure PCV system is functioning correctly.
Gasoline particulate filter (GPF) clogging
Symptoms: Limp mode, increased fuel consumption, excessive regeneration cycles, warning lights.
Cause: Insufficient exhaust temperature for passive regeneration, leading to soot accumulation.
Fix: Initiate forced regeneration via diagnostics; replace GPF if >75% full; advise highway driving for prevention.
High-pressure fuel pump (HPFP) wear
Symptoms: Hard starting, fuel pressure DTCs, knocking under load, reduced performance.
Cause: Internal wear due to low fuel quality or extended service intervals beyond 100,000 km.
Fix: Replace HPFP and inspect fuel for contamination; use only EN 228 RON 95+ fuel.
Research Basis

Analysis derived from Audi technical bulletins (2018-2021) and UK DVSA failure statistics (2019-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about AUDI CJGD

Find answers to most commonly asked questions about AUDI CJGD.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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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