The Audi CXMA is a 1,984 cc, inline — four turbocharged petrol engine produced between 2016 and 2021. Part of the Volkswagen Group's EA888 Gen 3B engine family, it was engineered for responsive performance and improved thermal efficiency. Featuring direct fuel injection (FSI), turbocharging, and dual overhead camshafts (DOHC) with variable valve timing, it delivers 140 kW (190 PS) and 320 Nm of torque, meeting Euro 6c emissions standards through integrated exhaust man…
All production years (2016–2021) meet Euro 6c standards (VCA UK Type Approval #VCA/EMS/5681).
The Audi CXMA is a 1,984 cc inline-four turbocharged petrol engine engineered for mid-size and performance models (2016–2021). It combines direct fuel injection with a single turbocharger and integrated exhaust manifold to deliver responsive power and regulated emissions performance. Designed exclusively for Euro 6c compliance, it balances sporty character with everyday drivability and efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,984 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 82.5 mm × 92.8 mm | |
Power output | 140 kW (190 PS) @ 3,900–6,000 rpm | |
Torque | 320 Nm @ 1,500–3,900 rpm | |
Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
Emissions standard | Euro 6c | |
Compression ratio | 9.6:1 | |
Cooling system | Water-cooled with dual-circuit thermostat | |
Turbocharger | Single turbo with integrated exhaust manifold (BorgWarner) | |
Timing system | Chain-driven (integrated in rear cover) | |
Oil type | VW 502 00 / 505 00 (5W-30) | |
Dry weight | 147 kg |
The Audi CXMA was used across Audi's B9/F5/FY platforms with longitudinal mounting and shared within the Volkswagen Group for premium applications. This engine received platform-specific adaptations-revised cooling layouts in the Q5 and enhanced NVH tuning in the A5-and from 2019 the facelifted A4 B9.5 adopted updated ECU calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The CXMA's primary reliability risk is intake valve carbon buildup on all models, with elevated incidence in mixed urban/highway driving. Audi internal quality reports from 2020 noted increased misfire DTCs in vehicles with frequent short trips, while UK DVSA data links intake-related faults to over 14% of petrol-related MOT advisories. Low-speed operation and poor fuel quality amplify deposits, making regular inspection and proper maintenance critical.
Analysis derived from Audi technical bulletins (2016-2021) and UK DVSA failure statistics (2015-2023). 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 CXMA is generally robust when maintained properly, though all variants are prone to intake valve carbon buildup. Later models (post-2019) show improved ECU strategies to reduce coking. Regular oil changes with VW 502 00/505 00 oil, coolant service, and use of quality fuel help prevent major issues. Well-maintained engines commonly exceed 250,000 km without major repairs.
Primary issues include intake valve carbon buildup, turbo oil coking, HPFP wear, and timing chain tensioner rattle. These are documented in Audi SIB 2018-05-01 and TIS A41301. Oil consumption and injector wear are less common but possible with poor maintenance. Use of low-octane fuel can lead to knock and reduced performance.
The CXMA was used in the A4 (B9, 2016–2021), A5 (F5, 2017–2020), and Q5 (FY, 2017–2021). It was also shared across Volkswagen Group brands, appearing in the VW Tiguan (5N) and Skoda Superb III. All models are Euro 6c compliant with integrated exhaust manifold and close-coupled catalyst.
Yes, the CXMA responds well to ECU remapping. Stage 1 tunes typically achieve 220–240 PS safely, leveraging the robust turbo and fuel system. Upgraded intercooler and exhaust support higher outputs. However, tuning increases thermal load on turbo and intake systems, so monitoring temperatures and maintenance intervals is essential.
In combined driving, the CXMA achieves 6.8–7.5 L/100km (42–39 mpg UK). Highway efficiency is good at ~6.0 L/100km (47 mpg UK), while urban driving ranges from 8.0–9.0 L/100km (35–31 mpg UK). Real-world consumption depends on driving style, but 35–42 mpg UK is typical for mixed use.
Yes, the CXMA is an interference engine. If the timing chain fails or jumps, piston-to-valve contact is likely, resulting in severe internal damage. While the chain is designed for life, inspection is recommended beyond 200,000 km or if rattle is detected at cold start.
The CXMA requires VW 502 00 / 505 00 specification oil (typically 5W-30). This low-SAPS formulation protects the turbo, GPF (if equipped), and high-pressure fuel system. Oil changes should occur every 15,000 km or annually to maintain engine longevity and prevent sludge or wear.
Comprehensive technical documentation and regulatory references
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GOV.UK: Vehicle Approval & V5C
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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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