The Audi CJCD is a 1,984 cc, inline — four turbocharged petrol engine produced between 2016 and 2020. It belongs to the Volkswagen Group's EA888 engine family (Gen 3B), featuring direct fuel injection (TSI), variable valve timing (VVT), and dual overhead camshafts (DOHC). In standard tune, it produces 140 kW (190 PS) and 320 Nm of torque, delivering responsive performance and strong mid — range driveability.
Fitted to models including the 8V A4, 8S S4, and 8W A5, the CJCD was…
Production years 2016–2020 meet Euro 6c standards (VCA UK Type Approval #VCA/EMS/6791).
The Audi CJCD is a 1,984 cc inline-four turbo-petrol engine developed for longitudinal-platform applications (2016–2020). It combines turbocharging with dual injection (direct + port) to deliver smooth power delivery and strong mid-range torque. Designed to meet Euro 6c emissions standards, it balances performance with improved fuel efficiency and reduced particulate emissions.
| 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) @ 4,200–6,000 rpm | |
Torque | 320 Nm @ 1,450–4,200 rpm | |
Fuel system | TSI: Direct + port injection (Bosch HDEV5) | |
Emissions standard | Euro 6c | |
Compression ratio | 9.6:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single-scroll turbo (Honeywell GT1749V) | |
Timing system | Chain-driven (double-row, front-mounted) | |
Oil type | Audi Longlife 04 (SAE 5W-30) | |
Dry weight | 144 kg |
The Audi CJCD was used across Audi's B9 platform with longitudinal mounting and shared with Volkswagen and SEAT under Group platform strategy. This engine received platform-specific calibrations-tuned intake manifolds in the S4 and revised cooling in the A5-and from 2018 the facelifted A4 Avant adopted revised emissions mapping, creating minor software incompatibilities. All adaptations are documented in OEM technical bulletins.
The CJCD's primary reliability risk is high-pressure fuel pump cam wear on early builds, with elevated incidence in city driving with frequent cold starts. Internal Audi reports from 2017 indicated a significant number of pre-2017 engines required HPFP replacement before 100,000 km, while UK DVSA records show increased misfire-related MOT failures in urban areas. Short trips and delayed oil changes accelerate wear, making oil quality and interval adherence critical.
Analysis derived from Audi technical bulletins (2016-2019) and UK DVSA failure statistics (2017-2022). 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 CJCD delivers responsive performance and good efficiency, but early models (2016–2017) had reliability concerns, particularly HPFP cam wear. Later revisions (post-2018) improved pump durability, so well-maintained examples can be robust. Regular servicing and using high-quality oil (5W-30 Audi Longlife 04) significantly enhance longevity.
The most common issues are high-pressure fuel pump cam wear, turbo wastegate sticking, intake carbon buildup, and coolant leaks from the thermostat housing. These are documented in Audi service bulletins and supported by DVSA failure data. Preventative maintenance is key to avoiding major repairs.
The CJCD 2.0 TFSI was used in the Audi A4 (B9), S4 (B9), and A5 (8W) between 2016 and 2020. It was also shared with Volkswagen (Passat B8 2.0 TSI) under the VW Group platform strategy. All variants meet Euro 6c emissions standards.
Yes. The CJCD responds well to ECU remapping, with stage 1 tunes typically adding +40–50 kW safely. The stock turbo and internals handle increased boost well. Supporting mods like intercooler and exhaust upgrades allow further gains. Tuning should use premium fuel (RON 98) to prevent knock.
In real-world driving, the CJCD achieves approximately 7.8 L/100 km (city), 5.9 L/100 km (highway), or about 36–42 mpg UK combined. The A4 2.0 TFSI typically returns better economy than the S4 due to lower weight. Expect 35–45 mpg (UK) depending on driving style and conditions.
Yes. The CJCD is an interference engine. If the timing chain fails or jumps, the pistons can strike the open valves, causing catastrophic engine damage. Chain maintenance is critical—any unusual noise from the front of the engine should be investigated immediately.
Audi specifies 5W-30 synthetic oil meeting Audi Longlife 04 specification. Use only VW 502 00/505 00-compliant oil and change it every 15,000 km or annually to ensure HPFP lubrication and minimize carbon buildup. Extended intervals increase wear risk.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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