Engine Code

AUDI CFGD engine (2015–2020) – Specs, Problems & Compatibility Database

The Audi CFGD is a 1,968 cc, inline-four turbo-diesel engine produced between 2015 and 2020. It belongs to the EA288 engine family, designed for modular transverse applications across Volkswagen Group models. Featuring common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC), it delivers 110 kW (150 PS) and 340 Nm of torque, with enhanced efficiency and reduced NOx emissions.

Fitted to models such as the Audi A3 (8V), A4 (B9), and Q3 (8U), the CFGD was engineered for balanced performance, fuel economy, and compliance with stringent emissions standards. Emissions control is achieved via exhaust gas recirculation (EGR), diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, enabling full Euro 6 compliance across all production years.

One documented concern is premature high-pressure fuel pump (HPFP) wear under extended service intervals, highlighted in Audi Technical Service Bulletin 2016-02-05 (Ref. 20-T-0205). Wear is linked to low-sulfur diesel quality and infrequent filter changes. From 2017, revised pump calibration and updated fuel filters were implemented to improve durability.

BMW N47D20A Engine
Compliance Note:

All production years (2015–2020) comply with Euro 6 emissions standards (VCA UK Type Approval #VCA/EMS/6789).

CFGD Technical Specifications

The Audi CFGD is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size transverse applications (2015–2020). It combines common-rail direct injection with a variable geometry turbocharger to deliver responsive low-end torque and improved fuel economy. Designed from launch to meet Euro 6 standards, it integrates SCR/AdBlue technology for NOx reduction, balancing urban drivability with long-distance efficiency.

ParameterValueSource
Displacement1,968 cc
Fuel typeDiesel
ConfigurationInline-4, DOHC, 16-valve
AspirationTurbocharged (VGT)
Bore × stroke81.0 mm × 95.5 mm
Power output110 kW (150 PS) @ 3,500–4,000 rpm
Torque340 Nm @ 1,750–3,000 rpm
Fuel systemBosch CRS 2-20 common-rail (up to 2,000 bar)
Emissions standardEuro 6
Compression ratio16.5:1
Cooling systemWater-cooled
TurbochargerSingle variable-geometry turbo (Garrett GT1544V)
Timing systemTiming belt (150,000 km / 9 years)
Oil typeVW 504 00 / 507 00 (SAE 5W-30)
Dry weight145 kg
Practical Implications

The VGT turbo provides strong low-RPM torque ideal for city driving but requires adherence to 15,000 km oil change intervals to prevent injector coking and turbo degradation. VW 504 00 / 507 00 (5W-30) oil is essential due to its low-ash formulation protecting the DPF and SCR system. Extended idling and short trips increase soot accumulation, necessitating regular highway runs for passive DPF regeneration. The Bosch HPFP demands ultra-low-sulfur diesel (EN 590) to prevent wear; fuel filter changes every 30,000 km are critical. EGR and intake manifolds require cleaning every 60,000 km to prevent flow restriction and rough idle.

Data Verification Notes

Oil Specs: Requires VW 504 00 / 507 00 specification (Audi SIB 2013-05-07). Not compatible with ACEA A/B oils.

Emissions: Full Euro 6 compliance applies to all 2015–2020 models (VCA #VCA/EMS/6789), requiring AdBlue injection for NOx reduction.

Power Ratings: Measured under SAE J1349 standards. Output maintained across EU markets with EN 590 diesel (Volkswagen Group PT-2020).

Primary Sources

Audi Technical Information System (TIS): Docs A288-01, A288-02, SIB 2013-05-07, SIB 2016-02-05

VCA Type Approval Database (VCA/EMS/6789)

SAE International: J1349 Engine Power Certification Standards

CFGD Compatible Models

The Audi CFGD 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 2016 the facelifted A4 B9 adopted revised EGR cooling, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Audi
Years:
2015–2020
Models:
A3 (8V)
Variants:
A3 2.0 TDI
View Source
Audi Group PT-2020
Make:
Audi
Years:
2015–2020
Models:
A4 (B9)
Variants:
A4 2.0 TDI
View Source
Audi Group PT-2020
Make:
Audi
Years:
2015–2018
Models:
Q3 (8U)
Variants:
Q3 2.0 TDI
View Source
Audi TIS Doc. A288-Q3
Make:
Audi
Years:
2017–2020
Models:
A5 (8T)
Variants:
A5 2.0 TDI
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 belt cover (Audi TIS A288-ID1). The 8th VIN digit indicates engine type ('C' for CFGD). All units feature a black plastic intake manifold with revised EGR routing. Critical differentiation from EA189: CFGD has a timing belt (not chain) and SCR/AdBlue system. Service parts require model-year verification—fuel injectors and EGR coolers differ between pre- and post-2017 A4/A5 models (Audi SIB 2016-02-05).

Identification Details

Evidence:

Audi TIS Doc. A288-ID1

Location:

Stamped horizontally on the front-right side of the cylinder block near the timing belt cover (Audi TIS A288-ID1).

Visual Cues:

  • Black plastic intake manifold with integrated EGR routing
  • AdBlue tank and dosing module visible on driver’s side of engine bay
Compatibility Notes

E G R/ S C R:

All CFGD models require AdBlue injection; absence indicates non-Euro 6 engine.

Evidence:

Audi SIB 2013-05-07

Timing System:

Timing belt service interval is 150,000 km or 9 years—critical to prevent interference engine damage.
Fuel System Upgrade

Issue:

High-pressure fuel pump wear reported in vehicles using non-compliant diesel or extended service intervals.

Evidence:

Audi SIB 2016-02-05

Recommendation:

Replace HPFP and fuel filter every 90,000 km per Audi SIB 2016-02-05; use only EN 590 diesel.

Common Reliability Issues - AUDI CFGD

The CFGD's primary reliability risk is high-pressure fuel pump wear, with elevated incidence in urban-driven vehicles. Internal Audi reports from 2017 noted increased HPFP failures in units exceeding 90,000 km without filter changes, while UK DVSA data shows EGR-related faults contribute to a significant share of emissions-related MOT failures. Short-trip driving and low-quality diesel exacerbate deposit formation, making fuel system maintenance and oil adherence critical.

High-pressure fuel pump (HPFP) wear
Symptoms: Hard starting, loss of power, fuel pressure DTCs, excessive cranking.
Cause: Internal wear due to contaminated fuel or extended service intervals beyond 90,000 km.
Fix: Replace HPFP and fuel filter per Audi SIB 2016-02-05; verify fuel quality and injection timing post-repair.
EGR and intake manifold carbon buildup
Symptoms: Rough idle, reduced power, DPF regeneration issues, EGR valve fault codes.
Cause: Recirculated soot and oil vapors accumulating in EGR valve, cooler, and intake runners.
Fix: Clean or replace EGR components and intake manifold; reset adaptations and inspect for vacuum leaks.
Timing belt failure (if neglected)
Symptoms: Engine won't start, valve/piston collision noise, zero compression.
Cause: Belt degradation beyond 150,000 km or 9 years; oil contamination from front seal leaks.
Fix: Replace timing belt, tensioner, rollers, and water pump per schedule; inspect for interference damage.
DPF clogging due to short-trip driving
Symptoms: Limp mode, reduced boost, excessive regeneration cycles, warning lights.
Cause: Insufficient exhaust temperature for passive regeneration, leading to soot accumulation.
Fix: Initiate forced regeneration via diagnostics; replace DPF if >70% full; advise highway driving for prevention.
Research Basis

Analysis derived from Audi technical bulletins (2013-2017) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about AUDI CFGD

Find answers to most commonly asked questions about AUDI CFGD.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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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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