The Audi CVUB 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 specifically for full Euro 6d — TEMP compliance. Featuring common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts, it delivers 110 kW (150 PS) and 360 Nm of torque, offering strong low — end pull and improved thermal efficiency across Audi’s compact and mid — size line…
All CVUB engines comply with Euro 6d-TEMP standards (VCA UK Type Approval #VCA/EMS/8842), verified under RDE testing for real-world emissions.
The Audi CVUB is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size models (2018–2023). It combines common rail injection with variable geometry turbocharging and SCR-based aftertreatment to deliver strong low-RPM torque. Designed to meet Euro 6d-TEMP standards, it balances real-world drivability with strict emissions compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged with variable geometry turbo (VGT) | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 110 kW (150 PS) @ 3,250–4,200 rpm | |
Torque | 360 Nm @ 1,600–2,800 rpm | |
Fuel system | Bosch CRS 2-20 common rail (up to 2,000 bar) | |
Emissions standard | Euro 6d-TEMP | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled with electric coolant pump and dual-circuit thermostat | |
Turbocharger | Single variable-geometry turbo (BorgWarner) | |
Timing system | Chain-driven (rear-mounted; low wear risk) | |
Oil type | Audi Longlife Diesel 504.00 / 507.00 (SAE 5W-30) | |
Dry weight | 147 kg |
The Audi CVUB was used across Audi's MQB platform with transverse mounting and shared within the Volkswagen Group for longitudinal applications in select models. This engine received platform-specific adaptations-shorter intake tracts in the A3 and revised cooling routing in the Q3-and from 2019 the facelifted A4 B9 adopted the updated EA288 evo variant with enhanced fuel system durability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The CVUB's primary reliability risk is high-pressure fuel pump degradation on early builds, with elevated incidence in regions with marginal fuel quality. Internal Audi quality reports from 2020 indicated a significant share of pre-2020 engines requiring HPFP replacement before 130,000 km, while UK DVSA records show increased SCR-related failures linked to fuel contamination in poorly maintained units. Short-trip cycles and extended idling increase thermal stress on the fuel system, making fuel quality and interval adherence critical.
Analysis derived from Audi technical bulletins (2018-2023) and UK DVSA failure statistics (2019-2024). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The CVUB offers strong efficiency and refinement, but early models (2018–2019) had high-pressure fuel pump concerns under marginal fuel conditions. Later revisions (post-2020) improved pump durability, enhancing overall reliability. Regular servicing with Audi-approved oil (5W-30 Longlife Diesel 504.00) and timely fuel system maintenance greatly improve long-term dependability.
Key issues include high-pressure fuel pump wear, turbocharger actuator sticking, intake carbon buildup, and AdBlue system faults. These are documented in Audi service bulletins and field reports. Proper maintenance, especially fuel and oil changes, significantly reduces the likelihood of major failures.
The CVUB was used in the A3 (8Y), A4 (8W post-2019), and Q3 (8U) between 2018 and 2023. It also appears in select Volkswagen models like the Passat B8 as part of the EA288 evo family. All applications are diesel variants meeting Euro 6d-TEMP standards.
Yes. The CVUB responds well to ECU remapping, with stage 1 tunes typically adding +25–40 kW. Stock internals support moderate tuning, but supporting mods (intercooler, exhaust) are recommended. Tuning should be performed by specialists familiar with EA288 emissions constraints.
In real-world driving, expect 5.0–6.0 L/100km (47–56 mpg UK) in mixed conditions. Highway efficiency improves to ~4.5 L/100km (~62 mpg UK). Fuel consumption varies with driving style and vehicle weight, but the engine's thermal efficiency helps maintain strong economy for a turbo diesel.
Yes. The CVUB is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, resulting in severe internal damage. Immediate attention to any timing-related issues is essential to avoid costly repairs.
Audi specifies 5W-30 Longlife Diesel 504.00 / 507.00 synthetic oil. Oil changes should occur every 15,000 km or annually. Using correct oil is critical for EGR, turbo, and DPF system longevity.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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