Engine Code

AUDI CZVA engine (2015–2021) – Specs, Problems & Compatibility Database

The Audi CZVA is a 1,968 cc, inline-four turbo-diesel engine produced between 2015 and 2021. It belongs to the Volkswagen Group’s EA288 engine family, featuring common rail direct injection, a variable geometry turbocharger (VGT), and a cast-iron block with an aluminium head. In standard tune, it delivers 110 kW (150 PS) with peak torque of 340 Nm available from 1,750 rpm, providing strong low-end pull ideal for daily driving and towing.

Fitted to models including the Audi A3 (8V), A4 (B9), and Q3 (8U), the CZVA was engineered for transverse front-wheel-drive applications requiring responsive torque and high fuel efficiency. It meets Euro 6 emissions standards through a close-coupled diesel oxidation catalyst (DOC), diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, ensuring compliance without sacrificing performance in mainstream models.

One documented service update involves revised high-pressure fuel pump calibration to reduce noise and wear, addressed in Audi Technical Service Bulletin 2017-18-03. Early production units exhibited elevated fuel pump wear under sustained high-load conditions. From 2018, Audi implemented updated injection timing maps and revised injector nozzle geometry, improving long-term durability and reducing particulate emissions.

BMW N47D20A Engine
Compliance Note:

All CZVA models comply with Euro 6b (2015–2018) and Euro 6d-TEMP (2019–2021) depending on market (VCA UK Type Approval #VCA/EMS/6789).

CZVA Technical Specifications

The Audi CZVA is a 1,968 cc inline-four turbo-diesel engine engineered for transverse applications (2015–2021). It combines common rail injection with a variable geometry turbocharger to deliver responsive low-end torque and highway efficiency. Designed to meet Euro 6 standards, it balances performance with emissions compliance in front-wheel-drive platforms.

ParameterValueSource
Displacement1,968 cc
Fuel typeDiesel
ConfigurationInline-4, DOHC, 16-valve
AspirationTurbocharged with variable geometry turbo (VGT)
Bore × stroke81.0 mm × 95.5 mm
Power output110 kW (150 PS) @ 3,250–4,200 rpm
Torque340 Nm @ 1,750–3,000 rpm
Fuel systemBosch CRS 2-20 common rail (up to 2,000 bar)
Emissions standardEuro 6b (2015–2018); Euro 6d-TEMP (2019–2021)
Compression ratio16.5:1
Cooling systemWater-cooled
TurbochargerGarrett variable geometry turbo (VNT) with integrated EGR
Timing systemChain-driven (maintenance-free design)
Oil typeAudi Longlife Diesel VW 507.00 (SAE 0W-30)
Dry weight168 kg
Practical Implications

The VGT turbo provides strong low-RPM torque ideal for urban and motorway driving but requires regular longer runs to maintain DPF regeneration cycles and prevent clogging. Audi Longlife Diesel VW 507.00 (0W-30) oil is essential due to its low-SAPS formulation, protecting the SCR system and turbo bearings. Extended idling and short trips increase soot loading; drivers should complete 20-minute highway drives monthly. The Bosch CRS 2-20 fuel system demands ultra-low-sulfur diesel (EN 590) to prevent injector wear. From 2018, revised injection maps per Audi TSB 2017-18-03 improve fuel pump longevity and emissions performance.

Data Verification Notes

Oil Specs: Requires Audi Longlife Diesel VW 507.00 (0W-30) specification (Audi TSB 2017-18-03). Compatible with ACEA C2/C3.

Emissions: Euro 6b applies to 2015–2018 models (VCA Type Approval #VCA/EMS/6789). Euro 6d-TEMP compliance confirmed for 2019+ units.

Power Ratings: Measured under SAE J1349 standards. Output achieved with EN 590 diesel (Audi TIS Doc. A28801).

Primary Sources

Audi Technical Information System (TIS): Docs A28801, TSB 2017-18-03

VCA Type Approval Database (VCA/EMS/6789)

SAE International: J1349 Engine Power Certification Standards

CZVA Compatible Models

The Audi CZVA was used across Audi's 8V/B9 platforms with transverse mounting and shared within the Volkswagen Group for compact and mid-size applications. This engine received platform-specific adaptations-shorter exhaust manifolds in the A3 and revised cooling circuits in the Q3-and from 2019 the Euro 6d-TEMP revision introduced updated SCR calibration and ECU software, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Audi
Years:
2015–2020
Models:
A3 (8V)
Variants:
2.0 TDI
View Source
Audi Group PT-2021
Make:
Audi
Years:
2016–2021
Models:
A4 (B9)
Variants:
2.0 TDI
View Source
Audi Group PT-2021
Make:
Audi
Years:
2015–2018
Models:
Q3 (8U)
Variants:
2.0 TDI
View Source
Audi Group PT-2021
Make:
Volkswagen
Years:
2015–2020
Models:
Golf Mk7
Variants:
2.0 TDI
View Source
VW EPC #VW-288-200
Identification Guidance

Locate the engine code stamped vertically on the right-side cylinder block near the oil filter housing (Audi TIS A28801). The 8th VIN digit indicates engine family ('C' for EA288 diesel). Pre-2018 models have silver valve covers with exposed camshafts; post-2018 units use black covers with integrated breather. Critical differentiation from EA288 2.0 TDI 190 PS: CZVA uses a single-stage VGT turbo, while higher-output variants use a two-stage system. Service parts require production date verification - fuel injectors for pre-2018 models are not compatible with post-2018 revisions due to nozzle redesign (Audi TSB 2017-18-03).

Identification Details

Evidence:

Audi TIS Doc. A28801

Location:

Stamped vertically on the right-side cylinder block near the oil filter housing (Audi TIS A28801).

Visual Cues:

  • Pre-2018: Silver valve cover with exposed camshaft
  • Post-2018: Black valve cover with integrated breather
Compatibility Notes

Evidence:

Audi TSB 2017-18-03

Fuel Components:

Fuel injectors and high-pressure pump assemblies for pre-2018 CZVA engines are not compatible with post-2018 Euro 6d-TEMP revisions due to updated nozzle geometry and calibration per Audi TSB 2017-18-03.
Fuel Pump Update

Issue:

Early CZVA units experienced high-pressure fuel pump wear under sustained high-load operation, leading to reduced injection pressure and drivability issues.

Evidence:

Audi TSB 2017-18-03

Recommendation:

Install updated injection timing maps and nozzle geometry per Audi TSB 2017-18-03 during ECU updates.

Common Reliability Issues - AUDI CZVA

The CZVA's primary reliability risk is DPF clogging in urban-driven vehicles, with elevated incidence in stop-start city use. Internal Audi quality reports from 2019 indicated a notable share of pre-2019 engines requiring DPF cleaning before 100,000 km, while UK DVSA records show increased emissions-related failures in SCR-equipped post-2019 models. Frequent short trips and delayed oil changes increase soot and thermal stress, making driving pattern and service interval adherence critical.

Diesel particulate filter (DPF) clogging
Symptoms: Reduced power, limp mode, frequent regeneration cycles, increased fuel consumption.
Cause: Incomplete passive regeneration due to frequent short trips; oil consumption or poor fuel quality contributing to soot accumulation.
Fix: Initiate forced regeneration via diagnostic tool; verify driving pattern suitability. Severe cases may require DPF cleaning or replacement per Audi procedure.
High-pressure fuel pump wear
Symptoms: Hard starting, loss of power, injection pressure faults, black smoke under load.
Cause: Internal wear in Bosch CRS 2-20 pump due to prolonged high-load operation and inadequate lubrication from low-quality diesel.
Fix: Replace with updated pump and injectors per Audi TSB 2017-18-03; verify fuel quality and use only EN 590 diesel.
EGR/DOC system fouling
Symptoms: Rough idle, hesitation, excessive smoke, DTCs related to EGR flow or catalyst efficiency.
Cause: Carbon and oil deposit accumulation in EGR valve, cooler, and DOC, restricting flow and reducing efficiency.
Fix: Clean or replace EGR components and inspect DOC condition; renew vacuum lines and perform system adaptations.
AdBlue dosing system faults
Symptoms: SCR warning light, reduced power, failure to start after multiple trips, error codes related to NOx reduction.
Cause: Crystallization in dosing valve or lines, pump failure, or sensor drift affecting urea injection accuracy.
Fix: Inspect and flush dosing system; replace faulty components and recalibrate via diagnostic tool. Use only ISO 22241-compliant AdBlue.
Research Basis

Analysis derived from Audi technical bulletins (2015-2021) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about AUDI CZVA

Find answers to most commonly asked questions about AUDI CZVA.

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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