The Audi CZVF is a 1,968 cc, inline — four turbo — diesel engine produced between 2015 and 2020. Part of the Volkswagen Group's EA288 evo engine family, it was engineered to meet stringent Euro 6c and Euro 6d — TEMP emissions standards. Featuring common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC), it delivers 110 kW (150 PS) and 340 Nm of torque, with enhanced low — end responsiveness and improved combustion efficiency.
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All production years (2015–2020) comply with Euro 6c or Euro 6d-TEMP standards depending on market .
The Audi CZVF is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size models (2015–2020). It combines common-rail direct injection with a variable geometry turbocharger to deliver responsive low-RPM torque and efficient highway cruising. Designed to meet Euro 6c and Euro 6d-TEMP emissions standards, it balances real-world economy with stringent environmental compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged (VGT) | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 110 kW (150 PS) @ 3,500–4,000 rpm | |
Torque | 340 Nm @ 1,750–3,000 rpm | |
Fuel system | Bosch CRS 2-20 common-rail (up to 2,000 bar) | |
Emissions standard | Euro 6c (2015–2018); Euro 6d-TEMP (2018–2020) | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Garrett GT1544V) | |
Timing system | Chain-driven (long-life, non-serviceable) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 148 kg |
The Audi CZVF was used across Audi's 8V/B9/FY platforms with transverse mounting in front-wheel-drive variants and longitudinal in quattro applications. This engine received platform-specific adaptations—reinforced mounts in the Q5 FY and revised EGR routing in the A3 8V—and from 2018 the updated A4 B9.5 facelift integrated enhanced SCR control logic, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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The CZVF's primary reliability risk is high-pressure fuel pump degradation under poor fuel quality, with elevated incidence in non-EN 590 markets. Internal Audi quality reports from 2018 indicated a significant number of pre-2018 units required HPFP replacement before 120,000 km, while VCA MOT records show increased misfire-related failures linked to fuel system contamination. Frequent short trips and low-load operation increase injector coking, making fuel quality and regular highway use critical.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The CZVF is generally robust when properly maintained, especially post-2018 models with updated fuel system calibration. Key risks include HPFP wear with poor fuel quality and DPF clogging in urban environments. Regular highway driving, use of EN 590 diesel, and adherence to oil change intervals (15,000 km) with Audi Longlife-05 oil are essential for long-term durability.
Key issues include high-pressure fuel pump wear due to low-quality diesel, DPF clogging from short trips, turbo actuator sticking, and EGR cooler leakage. These are documented in Audi service bulletins, particularly SIB 2017-03-05 for HPFP failures. Proper maintenance and fuel quality significantly reduce failure risks.
The CZVF was used in the Audi A3 (8V, 35 TDI), A4 (B9, 40 TDI), A5 (F5, 40 TDI), and Q5 (FY, 40 TDI) from 2015 to 2020. It replaced earlier EA288 variants to meet Euro 6 standards. All applications feature either front-wheel drive or quattro all-wheel drive depending on model.
Aftermarket ECU tuning is common on the CZVF platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In real-world conditions, the CZVF achieves approximately 5.1 L/100km (city), 4.0 L/100km (highway), and 4.5 L/100km combined (~62 mpg UK). The A3 35 TDI and A4 40 TDI are particularly efficient. Economy depends on driving style, with consistent highway use yielding best results.
Yes, the CZVF is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can occur, resulting in severe internal damage. Although the chain is designed for the engine's lifetime, any unusual noise from the timing cover should be investigated immediately to prevent catastrophic failure.
Audi specifies SAE 5W-30 oil meeting Longlife-05 standards. This low-ash formulation is critical for protecting the turbocharger, EGR system, and DPF. Oil changes should be performed every 15,000 km or annually, using only VW 507 00-compliant oils to ensure compatibility with emissions components.
Comprehensive technical documentation and regulatory references
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EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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VCA Certification Portal
Type-approval guidance and documentation.
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