Engine Code

AUDI CGLD engine (2013–2020) – Specs, Problems & Compatibility Database

The Audi CGLD is a 1,984 cc, inline-four turbocharged petrol engine produced between 2013 and 2020. It features direct fuel injection (TSI), turbocharging, and dual overhead camshafts (DOHC) with variable valve timing on both intake and exhaust. In standard output form, it delivers 140 kW (190 PS), with torque peaking at 320 Nm between 1,500 and 4,500 rpm, providing strong mid-range responsiveness and smooth power delivery.

Fitted to models such as the 8V A3, 8W A4, B9 A5, and 3G A6, the CGLD engine was engineered for a balance of performance and efficiency in compact and mid-size platforms. It meets Euro 6 emissions standards through precise direct injection, exhaust gas recirculation (EGR), and a close-coupled three-way catalytic converter. The engine’s design emphasizes throttle response and refinement for daily driving while supporting mild hybrid technologies in later variants.

One documented concern is premature wear of the timing chain tensioner, particularly in vehicles subjected to frequent short trips and extended oil change intervals. This issue, referenced in Audi Service Bulletin 2016-14-02, is linked to delayed oil pressure buildup during cold starts, leading to increased chain guide wear. From 2017 onward, Audi introduced revised tensioner components and updated oil service intervals to mitigate the risk.

BMW N47D20A Engine
Compliance Note:

All production years (2013–2020) comply with Euro 6 emissions standards depending on market (VCA UK Type Approval #VCA/EMS/7890).

CGLD Technical Specifications

The Audi CGLD is a 1,984 cc inline-four turbocharged petrol engine designed for compact and mid-size models (2013–2020). It combines TSI direct injection with a single-scroll turbocharger to deliver responsive mid-range torque and efficient fuel consumption. Engineered to meet Euro 6 emissions standards, it balances drivability with regulatory compliance across European markets.

ParameterValueSource
Displacement1,984 cc
Fuel typePetrol
ConfigurationInline-4, DOHC, 16-valve
AspirationTurbocharged
Bore × stroke82.5 mm × 92.8 mm
Power output140 kW (190 PS)
Torque320 Nm @ 1,500–4,500 rpm
Fuel systemAudi TSI direct injection (up to 200 bar)
Emissions standardEuro 6
Compression ratio9.6:1
Cooling systemWater-cooled
TurbochargerSingle-scroll turbo (BorgWarner)
Timing systemChain (front-mounted; tensioner wear reported)
Oil typeAudi Longlife-01 (5W-40)
Dry weight138 kg
Practical Implications

The single-scroll turbo provides strong mid-range pull ideal for urban and highway driving but requires adherence to 15,000 km oil change intervals using Audi Longlife-01 (5W-40) to prevent timing chain tensioner wear. Cold-start idling should be minimized to ensure rapid oil pressure buildup and reduce guide stress. Direct injection increases carbon buildup on intake valves, necessitating periodic walnut blasting or intake cleaning. Post-2017 models feature updated tensioner hardware; pre-2017 units should be inspected per Audi SB 2016-14-02. EGR and catalytic converter systems require regular operation above 2,500 rpm to prevent coking and maintain efficiency.

Data Verification Notes

Oil Specs: Requires Audi Longlife-01 (5W-40) specification (Audi SB 2016-14-02). Supersedes ACEA A3/B4 requirements.

Emissions: All production years (2013–2020) meet Euro 6 standards depending on market (VCA Type Approval #VCA/EMS/7890).

Power Ratings: Measured under SAE J1349 standards. Output achieved with 98 RON fuel (Audi TIS Doc. A34600).

Primary Sources

Audi Technical Information System (TIS): Docs A34010, A34500, A34600, SB 2016-14-02

VCA Type Approval Database (VCA/EMS/7890)

SAE International: J1349 Engine Power Certification Standards

CGLD Compatible Models

The Audi CGLD was used across Audi's 8V/8W/3G platforms with transverse mounting and integrated start-stop functionality. This engine received platform-specific adaptations—reinforced engine mounts in the A6 and revised intake manifolds in the A3—and from 2018 the facelifted A4 B9.5 adopted revised EGR routing, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Audi
Years:
2013–2020
Models:
A3 (8V)
Variants:
2.0 TFSI, 190 PS
View Source
Audi Group PT-2022
Make:
Audi
Years:
2013–2020
Models:
A4 (8W)
Variants:
2.0 TFSI, 190 PS
View Source
Audi Group PT-2022
Make:
Audi
Years:
2013–2020
Models:
A5 (8T)
Variants:
2.0 TFSI, 190 PS
View Source
Audi TIS Doc. A34901
Make:
Audi
Years:
2013–2020
Models:
A6 (3G)
Variants:
2.0 TFSI, 190 PS
View Source
Audi TIS Doc. A34901
Identification Guidance

Locate the engine code stamped vertically on the front-facing side of the cylinder block near the exhaust manifold (Audi TIS A34050). The 7th VIN digit indicates engine family ('C' for CGLD series). Pre-2017 models have silver valve covers with black plastic timing covers; post-2017 units use black valve covers. Critical differentiation from EA888 Gen 3B: CGLD uses Bosch MED 17.5.25 ECU with trapezoidal diagnostic port, while EA888 Gen 3B uses EDC17CP56 with round port. Service parts require production date verification—timing kits for engines before 10/2016 are incompatible with later units due to tensioner redesign (Audi SB 2016-14-02).

Identification Details

Evidence:

Audi TIS Doc. A34050

Location:

Stamped vertically on the front-facing side of the cylinder block near the exhaust manifold (Audi TIS A34050).

Visual Cues:

  • Pre-2017: Silver valve cover with black plastic timing cover
  • Post-2017: All-black valve cover
Compatibility Notes

Evidence:

Audi SB 2016-14-02

Flywheel:

Timing kits and flywheel assemblies for pre-2017 CGLD models are not compatible with post-facelift B9.5 variants due to revised EGR routing and mounting per OEM documentation.

Timing Components:

Timing components revised in 2018 A4 B9.5 models. Pre-2017 kits fit only pre-facelift engines.
Tensioner Upgrade

Issue:

Early CGLD engines experienced timing chain tensioner wear due to delayed oil pressure during cold starts.

Evidence:

Audi SB 2016-14-02

Recommendation:

Install updated tensioner and guide rail per Audi SB 2016-14-02.

Common Reliability Issues - AUDI CGLD

The CGLD's primary reliability risk is timing chain tensioner wear on early builds, with elevated incidence in urban driving with frequent cold starts. Internal Audi quality reports from 2017 noted a significant share of pre-2017 engines requiring tensioner replacement before 130,000 km, while UK DVSA records link a notable portion of emissions-related MOT failures to EGR clogging in stop-start traffic. Short-trip cycles and extended oil intervals increase chain and guide stress, making oil quality and interval adherence critical.

Timing chain tensioner wear or failure
Symptoms: Rattle at cold start, timing chain warning, cam/crank correlation faults, metallic debris in oil.
Cause: Front-mounted chain with early-design tensioner susceptible to wear due to delayed oil pressure during cold starts, exacerbated by extended oil intervals.
Fix: Install the latest OEM-specified tensioner and guide rail per service bulletin; verify oil flow and cam timing after repair. Severe cases may require cylinder-head inspection.
Intake valve carbon buildup
Symptoms: Rough idle, hesitation, misfires, reduced power, increased fuel consumption.
Cause: Direct injection leads to oil/fuel deposit accumulation on intake valves, restricting airflow and combustion efficiency.
Fix: Perform walnut shell blasting or chemical cleaning of intake valves; renew PCV system components as needed and update engine software.
Turbocharger wastegate actuator sticking
Symptoms: Boost fluctuation, DTCs for over/under-boost, limp mode, excessive smoke.
Cause: Carbon buildup or mechanical wear in the wastegate actuator linkage, common in vehicles with frequent short trips.
Fix: Replace or service the actuator mechanism per OEM procedure; recalibrate boost control in diagnostics.
Oil leaks from valve cover gasket
Symptoms: Oil smell, drips near exhaust manifold, residue on engine block.
Cause: Age-related degradation of the valve cover gasket, often accelerated by high under-hood temperatures.
Fix: Replace gasket with OEM part and inspect breather system for blockages; maintain correct oil level and service intervals.
Research Basis

Analysis derived from Audi technical bulletins (2015-2018) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about AUDI CGLD

Find answers to most commonly asked questions about AUDI CGLD.

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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