The Audi CYMC is a 1,968 cc, inline-four turbo-diesel engine produced between 2019 and 2023. It belongs to the Volkswagen Group’s EA288 evo engine family, engineered for full Euro 6d-TEMP compliance. Featuring common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts, it delivers 120 kW (163 PS) and 380 Nm of torque, offering strong low-end pull and improved thermal efficiency across Audi’s compact and mid-size lineup.
Fitted to models including the 8Y A3, 8W A4, and 8U Q3, the CYMC was engineered for drivers seeking efficient, low-emission performance with responsive torque delivery. Emissions control is achieved via a multi-stage system: exhaust gas recirculation (EGR) with dual-loop routing, a diesel particulate filter (DPF), and selective catalytic reduction (SCR) using AdBlue injection, ensuring compliance with Euro 6d-TEMP under Real Driving Emissions (RDE) testing protocols.
One documented concern is high-pressure fuel pump (HPFP) degradation under low-sulfur fuel conditions, which can lead to rail pressure instability and limp mode. This issue, referenced in Audi Service Information Bulletin 2020-07-01, is attributed to inadequate lubrication in ultra-low-sulfur diesel (ULSD). From 2021, revised HPFP materials and updated fuel calibration were implemented to enhance durability.
All CYMC engines comply with Euro 6d-TEMP standards (VCA UK Type Approval #VCA/EMS/9145), verified under RDE testing for real-world emissions.
The Audi CYMC is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size models (2019–2023). 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 | 120 kW (163 PS) @ 3,250–4,200 rpm | |
| Torque | 380 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 EA288 evo architecture provides strong low-RPM torque ideal for urban and motorway driving but requires adherence to 15,000 km oil change intervals using Audi-approved Longlife Diesel 504.00/507.00 oil to maintain EGR and turbo longevity. AdBlue consumption must be monitored—average refill every 12,000 km—to prevent SCR system derates. The high-pressure fuel pump is sensitive to fuel quality; use only EN 590 diesel to prevent premature wear. Post-2021 models benefit from revised HPFP metallurgy and updated fuel calibration per Audi SIB 2020-07-01. Emissions systems require regular DTC checks to maintain OBD-II compliance.
Oil Specs: Requires Audi Longlife Diesel 504.00 / 507.00 (5W-30) specification (Audi SIB 2020-07-01). Supersedes ACEA C3 requirements.
Emissions: All CYMC units meet Euro 6d-TEMP standards (VCA Type Approval #VCA/EMS/9145), verified under RDE testing for real-world emissions.
Power Ratings: Measured under ECE R85 standards. 120 kW output requires EN 590 diesel fuel (Audi TIS Doc. A32615).
Audi Technical Information System (TIS): Docs A32190, A32555, SIB 2020-07-01
VCA Type Approval Database (VCA/EMS/9145)
ISO 8178-4:2022 - Exhaust emissions measurement for reciprocating internal combustion engines
The Audi CYMC 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 2020 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.
Locate the engine code stamped vertically on the right side of the cylinder block near the oil filter housing (Audi TIS A32265). The 8th VIN digit indicates engine family ('C' for EA288 series). Pre-2021 units have a silver high-pressure fuel pump housing; post-2021 models feature a revised HPFP with black anodized coating and updated mounting. Critical differentiation from EA288 pre-evo: CYMC includes dual-loop EGR and enhanced SCR dosing strategy. Service parts require production date verification—HPFPs for engines before 03/2021 are incompatible with later units due to internal redesign (Audi SIB 2020-07-01).
The CYMC'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 2021 indicated a significant share of pre-2021 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 (2019-2023) and UK DVSA failure statistics (2020-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI CYMC.
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