The Audi CZJA is a 1,984 cc, inline-four turbocharged petrol engine produced between 2012 and 2018. It forms part of the EA888 Gen 3 engine family, featuring direct fuel injection (FSI), variable valve timing (VVT), and an integrated exhaust manifold for improved thermal efficiency. In standard tune, it delivers 140 kW (190 PS) and 320 Nm of torque.
Fitted to models including the 8V A3, B8/B8.5 A4, and 5N Q3, the CZJA was engineered for balanced performance and fuel economy in compact and mid-size Audi applications. It supports start-stop technology and energy recuperation, meeting Euro 5 and later Euro 6 emissions standards through a three-way catalytic converter and lambda control system.
One documented concern is excessive carbon buildup on intake valves, particularly in stop-start urban driving conditions. This issue, referenced in Audi Technical Service Bulletin 61-13-01, arises due to the absence of fuel washing over the valves in direct-injection engines. Audi recommends periodic intake cleaning and the use of detergent-enhanced fuels to mitigate deposit formation.
Production years 2012–2014 meet Euro 5 standards; 2015–2018 models comply with Euro 6b (VCA UK Type Approval #VCA/EMS/5678).
The Audi CZJA is a 1,984 cc inline-four turbocharged petrol engine engineered for compact and mid-size Audi platforms (2012–2018). It combines fuel stratified injection (FSI) with variable valve timing to deliver responsive performance and efficient operation. Designed to meet Euro 6b emissions standards in later models, it balances daily drivability with sporty character.
| 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) @ 3,800–6,000 rpm | |
| Torque | 320 Nm @ 1,600–3,750 rpm | |
| Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
| Emissions standard | Euro 5 (pre-2015); Euro 6b (2015–2018) | |
| Compression ratio | 9.6:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single-scroll turbo with integrated exhaust manifold (Honeywell) | |
| Timing system | Chain-driven (double-row primary, toothed belt secondary) | |
| Oil type | VW 502 00 / 505 00 (SAE 5W-30) | |
| Dry weight | 142 kg |
The direct-injection design provides strong mid-range torque and responsive throttle feel but requires proactive maintenance to prevent intake valve coking. Use of VW 502 00/505 00-compliant 5W-30 oil is essential for turbo and timing system longevity. Extended oil intervals beyond 15,000 km increase risk of sludge formation and turbo bearing wear. The integrated exhaust manifold improves warm-up time but increases thermal load on the cylinder head, making coolant quality and system integrity critical. Pre-2015 Euro 5 models lack an LP-EGR system; post-2015 units feature cooled EGR to meet Euro 6b. Intake cleaning every 60,000 km is advised per Audi SIB 61-13-01 to maintain airflow and idle stability.
Oil Specs: Requires VW 502 00 / 505 00 specification (Audi SIB 61-13-01). Compatible with ACEA A1/B1 and A5/B5.
Emissions: Euro 5 applies to models produced before 2015 (VCA Type Approval #VCA/EMS/5678). Euro 6b compliance verified for 2015–2018 builds.
Power Ratings: Measured under SAE J1349 standards. Output consistent across fuel qualities meeting EN 228.
Audi Technical Information System (TIS): Docs A32088, A32110, A32145, SIB 61-13-01
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Audi CZJA was used across Audi's 8V/B8 platforms with longitudinal mounting and shared with Volkswagen Group brands under modular engine strategy. This engine received platform-specific adaptations-integrated start-stop in A3 and revised cooling routing in Q3-and from 2015 the facelifted B8.5 A4 adopted revised ECU mapping for Euro 6b compliance, creating software compatibility limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front of the cylinder block near the timing cover (Audi TIS A32090). The 7th VIN digit indicates engine family ('C' for CZJA). Pre-2015 models have a silver intake manifold with black plastic cam covers; post-2015 units use gloss black intake trims. Critical differentiation from EA888 Gen 2: CZJA features an integrated exhaust manifold and revised turbo location. Service parts require model-year verification - ECU and turbo assemblies are not interchangeable between Euro 5 and Euro 6 variants due to emissions calibration differences (Audi SIB 61-13-01).
The CZJA's primary reliability risk is intake valve carbon buildup, with elevated incidence in urban driving with frequent short trips. Internal Audi field reports from 2016 indicated a significant number of pre-2015 units requiring intake cleaning before 80,000 km, while UK DVSA MOT data shows increased misfire-related failures in high-mileage examples. Short journeys and low oil change frequency exacerbate deposit formation, making fuel quality and maintenance adherence critical.
Analysis derived from Audi technical bulletins (2012-2018) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about AUDI CZJA.
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