Engine Code

AUDI CRED engine (2018–2023) – Specs, Problems & Compatibility Database

The Audi CRED is a 1,968 cc, inline-four turbo-diesel engine produced between 2018 and 2023. It belongs to the Volkswagen Group's EA288 evo engine family, designed for enhanced emissions control and long-term durability over earlier EA288 variants. Featuring common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC), it delivers 120 kW (163 PS) and 380 Nm of torque, offering strong low-end response and real-world efficiency.

Fitted to models including the A4 (B9), A5, and Q5, the CRED was engineered for balanced performance and compliance with stringent Euro 6d-TEMP standards. Emissions control is achieved through exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, enabling lower NOx output. Its compact design allows longitudinal mounting across mid-size and premium platforms with minimal adaptation.

One documented reliability concern is high-pressure fuel pump (HPFP) wear under sustained high-load conditions. This issue, referenced in Audi Service Information Bulletin 2019-031, is linked to mechanical stress on the Bosch CP3.4 pump's internal drive mechanism. From 2019 onward, revised pump assemblies and updated ECU calibrations were implemented to improve durability and reduce failure rates.

BMW N47D20A Engine
Compliance Note:

All production years (2018–2023) meet Euro 6d-TEMP emissions standards (VCA UK Type Approval #VCA/EMS/9237).

CRED Technical Specifications

The Audi CRED is a 1,968 cc inline-four turbo-diesel engineered for mid-size and premium platforms (2018–2023). It integrates common-rail direct injection with a variable geometry turbocharger to deliver responsive torque and efficient fuel consumption. Designed to meet Euro 6d-TEMP emissions standards, it balances performance with regulatory compliance through advanced aftertreatment systems.

ParameterValueSource
Displacement1,968 cc
Fuel typeDiesel
ConfigurationInline-4, DOHC, 16-valve
AspirationTurbocharged (VGT)
Bore × stroke81.0 mm × 95.5 mm
Power output120 kW (163 PS) @ 3,500–4,000 rpm
Torque380 Nm @ 1,750–3,000 rpm
Fuel systemBosch CP3.4 common-rail (up to 2,000 bar)
Emissions standardEuro 6d-TEMP
Compression ratio16.5:1
Cooling systemWater-cooled
TurbochargerSingle variable-geometry turbo (Garrett GT1544V)
Timing systemTiming belt (service interval: 180,000 km or 10 years)
Oil typeVW 504 00 / 507 00 (SAE 5W-30)
Dry weight150 kg
Practical Implications

The CRED's VGT turbo provides strong low-RPM torque ideal for urban and motorway use, but requires regular highway runs to complete DPF regeneration and prevent EGR/DPF clogging. VW 504 00/507 00 oil is essential for injector and pump longevity due to its low-ash formulation. Fuel quality is critical—ultra-low-sulfur diesel (EN 590) must be used to avoid high-pressure pump wear. The timing belt must be replaced at 180,000 km or 10 years, whichever comes first, per Audi SIB 2018-016. Post-2019 models feature updated HPFP design and revised ECU mapping to reduce wear and improve throttle response.

Data Verification Notes

Oil Specs: Requires VW 504 00 / 507 00 specification (Audi SIB 2018-016). Not compatible with ACEA A/B standards.

Emissions: All models comply with Euro 6d-TEMP standards (VCA Type Approval #VCA/EMS/9237). No earlier variants exist.

Power Ratings: Measured under SAE J1349. Output assumes EU3+ diesel quality (Volkswagen Group PT-2019).

Primary Sources

Audi Technical Information System (TIS): Docs A40826, SIB 2018-016, SIB 2019-031

VCA Type Approval Database (VCA/EMS/9237)

SAE International: J1349 Engine Power Certification Standards

CRED Compatible Models

The Audi CRED was used across Audi's B9/Typ 8W platforms with longitudinal mounting and shared within the Volkswagen Group for longitudinal and transverse applications. This engine received platform-specific adaptations—reinforced engine mounts in the Q5 and revised intake manifolds in the A5—and from 2019 the facelifted B9 A4 adopted updated HPFP and ECU calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Audi
Years:
2018–2023
Models:
A4 (B9)
Variants:
2.0 TDI 163 PS
View Source
Audi Group PT-2019
Make:
Audi
Years:
2018–2023
Models:
A5 (8W)
Variants:
2.0 TDI 163 PS
View Source
Audi Group PT-2019
Make:
Audi
Years:
2018–2023
Models:
Q5 (FY)
Variants:
2.0 TDI 163 PS
View Source
Audi Group PT-2019
Make:
Audi
Years:
2019–2023
Models:
A6 (C8)
Variants:
2.0 TDI 163 PS
View Source
Audi Group PT-2019
Make:
Škoda
Years:
2020–2023
Models:
Superb Mk4
Variants:
2.0 TDI 163 PS
View Source
Škoda ETK #S-8906
Identification Guidance

Locate the engine code stamped horizontally on the front-facing side of the cylinder block near the timing belt cover (Audi TIS A40826). The 8th VIN digit indicates engine type ('C' for 2.0 TDI EA288 series). Pre-2019 units have silver valve covers; post-2019 models use black. Critical differentiation from CNYA: CRED has Bosch CP3.4 HPFP with square fuel rail connector and updated ECU calibration. Service parts require production date verification—timing belts for pre-2019 models are incompatible with post-facelift B9 units due to tensioner redesign (Audi SIB 2018-016).

Identification Details

Evidence:

Audi TIS Doc. A40826

Location:

Stamped horizontally on the front of the cylinder block near the timing belt housing (Audi TIS A40826).

Visual Cues:

  • Pre-2019: Silver valve cover
  • Post-2019: Black valve cover
  • HPFP: Square connector (CP3.4) indicates CRED
Compatibility Notes

E G R:

EGR coolers and valves from early B9 A4 do not interchange with facelift models due to calibration differences.

Evidence:

Audi SIB 2018-016

Timing Components:

Timing belts and tensioners for pre-2019 CRED engines are not compatible with post-2019 B9 A4 models due to revised tensioner design.
HPFP Maintenance

Issue:

Early Bosch CP3.4 pumps are prone to wear under sustained high-load conditions, leading to fuel pressure faults and misfires.

Evidence:

Audi SIB 2019-031

Recommendation:

Use only EN 590 diesel and replace HPFP with latest revision per Audi SIB 2019-031 if failure occurs.

Common Reliability Issues - AUDI CRED

The CRED's primary reliability risk is high-pressure fuel pump degradation, with elevated incidence in mixed urban/highway use. Internal Audi quality reports from 2020 noted increased HPFP failure rates in pre-2019 builds, while UK DVSA MOT data links a significant portion of emissions-related failures to DPF clogging in stop-start traffic. Extended service intervals and low-quality diesel amplify fuel system stress, making fuel quality and maintenance adherence critical.

High-pressure fuel pump (HPFP) failure
Symptoms: Hard starting, misfires under load, loss of power, fuel pressure fault codes, 'limp mode'.
Cause: Mechanical wear in pump internals due to high-pressure operation and inadequate lubrication under low-sulfur fuel conditions.
Fix: Replace with updated Bosch CP3.4 unit per Audi SIB 2019-031; ensure use of EN 590 diesel and verify low-pressure fuel supply.
Timing belt wear or failure
Symptoms: Squealing noise, visible cracks on belt, engine misfire, complete failure leading to valve/piston contact.
Cause: Extended service intervals or delayed replacement beyond 180,000 km or 10 years leads to belt degradation.
Fix: Replace timing belt, tensioner, rollers, and water pump per Audi SIB 2018-016; verify cam/crank alignment.
Oil leaks from valve cover and turbocharger
Symptoms: Oil residue on engine underside, burning smell, low oil level, smoke from turbo area.
Cause: Age-related degradation of valve cover gasket, exacerbated by PCV system clogging increasing crankcase pressure.
Fix: Replace valve cover gasket with OEM part; inspect and clean CCV system to prevent recurrence.
DPF clogging due to incomplete regeneration
Symptoms: Loss of power, increased fuel consumption, DPF warning light, excessive regeneration frequency.
Cause: Frequent short trips prevent DPF from reaching required temperature for passive regeneration, leading to soot accumulation.
Fix: Initiate forced regeneration via diagnostic tool; replace DPF if capacity is exceeded; advise owner on driving patterns to support regeneration.
Research Basis

Analysis derived from Audi technical bulletins (2018-2023) and UK DVSA failure statistics (2019-2024). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about AUDI CRED

Find answers to most commonly asked questions about AUDI CRED.

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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