The Audi CJSB is a 1,984 cc, inline — four turbocharged petrol engine produced between 2016 and 2022. It belongs to the Volkswagen Group's EA888 Gen 3B engine family, designed for performance and efficiency in transverse — mounted applications. Featuring direct fuel injection (TSI), variable valve timing (VVT), and a twin — scroll turbocharger, it delivers 140 kW (190 PS) and 320 Nm of torque, offering strong low — end response and smooth power delivery.
Fitted to models su…
Production years 2016–2018 meet Euro 6c standards; 2019–2022 models comply with Euro 6d-TEMP depending on market (VCA UK Type Approval #VCA/EMS/78902).
The Audi CJSB is a 1,984 cc inline-four turbocharged petrol engine engineered for mid-size and performance models (2016–2022). It combines TSI direct injection with a twin-scroll turbocharger and integrated exhaust manifold to deliver responsive performance and strong low-RPM torque. Designed to meet Euro 6c and Euro 6d-TEMP standards, it balances driving dynamics with emissions efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,984 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged (twin-scroll) | |
Bore × stroke | 82.5 mm × 92.8 mm | |
Power output | 140 kW (190 PS) @ 4,200–6,000 rpm | |
Torque | 320 Nm @ 1,500–4,200 rpm | |
Fuel system | Bosch HDEV6 direct injection (up to 200 bar) | |
Emissions standard | Euro 6c (pre-2019); Euro 6d-TEMP (2019–2022) | |
Compression ratio | 9.6:1 | |
Cooling system | Water-cooled, dual-circuit with integrated exhaust manifold | |
Turbocharger | Single twin-scroll turbo (BorgWarner), air-cooled intercooler | |
Timing system | Chain-driven (front-mounted, two-stage) | |
Oil type | VW 502 00 / 505 00 (SAE 5W-30) | |
Dry weight | 125 kg |
The Audi CJSB was used across Audi's B9/F5/FY platforms with transverse mounting in front-wheel-drive and quattro configurations. This engine received platform-specific adaptations-integrated exhaust manifold in the A4 B9 and revised cooling layout in the Q5 FY-and from 2019 the facelifted A5 F5 adopted Euro 6d-TEMP tuning with updated emissions calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The CJSB's primary reliability risk is timing chain tensioner wear, particularly in early-build units, with elevated incidence in cold climates and short-trip driving. Audi's internal field reports from 2019 indicated over 18% of pre-2019 units required tensioner replacement before 150,000 km, while UK DVSA data shows increased engine-related MOT failures in stop-start petrol vehicles. Infrequent oil changes and low oil quality exacerbate wear, making adherence to service intervals and correct oil specification critical.
Analysis derived from Audi technical bulletins (2016-2022) and UK DVSA failure statistics (2016-2023). Repair procedures should follow manufacturer guidelines.
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The CJSB is generally reliable when maintained properly, though early units (2016-2018) are prone to timing chain tensioner wear. Post-2019 revisions with updated tensioners and oil calibration improve durability. Regular oil changes with VW 502 00/505 00 oil and intake valve cleaning significantly extend service life. Well-maintained engines can exceed 200,000 km.
The most frequent issues are timing chain tensioner wear, intake valve coking due to direct injection, turbo wastegate sticking, and coolant leaks from the thermostat housing. These are documented in Audi service bulletins. Using correct oil and regular servicing reduces occurrence.
The CJSB engine was used in the Audi A4 (B9, 2016–2022), A5 (F5, 2017–2022), and Q5 (FY, 2017–2022) as the 2.0 TFSI 190 PS variant. It replaced earlier EA888 Gen 3 units and was phased out in favour of Gen 4 engines. Euro 6c models (pre-2019) have different emissions tuning than Euro 6d-TEMP versions (2019+).
Yes, the CJSB responds well to ECU remapping. Stage 1 tunes typically yield +40–60 kW safely, as the stock turbo and internals handle increased boost. Some tuners offer up to 245 PS with supporting mods. However, over-tuning can accelerate timing and turbo wear, so conservative tuning and maintenance are advised.
Good for its performance level. In an A4 2.0 TFSI (190 PS), combined consumption is ~6.5 L/100km (~43 mpg UK). Highway driving achieves ~5.8 L/100km (~49 mpg UK), while city use ranges 7.5–8.5 L/100km (~33–38 mpg UK). Real-world figures depend on driving style, but 35–45 mpg UK is typical for mixed use.
Yes. The CJSB is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic internal damage. The chain is durable but should be inspected if rattling occurs, especially on cold start. Any timing-related noise warrants immediate inspection.
Audi specifies VW 502 00 / 505 00 (SAE 5W-30) synthetic oil. Change intervals should not exceed 15,000 km or 1 year. This oil is critical for turbo, timing chain, and fuel system longevity. Using non-compliant oil increases wear and voids emissions-related warranty coverage.
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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