The Audi CRLA is a 1,968 cc, inline — four turbo — diesel engine produced between 2021 and 2023. It belongs to the Volkswagen Group's EA288 evo engine family, designed for compact and mid — size applications with enhanced emissions control. Featuring common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC), it delivers 110 kW (150 PS) and 360 Nm of torque, offering responsive performance and strong low — end pull.
Fitted to mo…
All production years (2021–2023) comply with Euro 6d-ISC-FCM standards (VCA UK Type Approval #VCA/EMS/90124).
The Audi CRLA is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size models (2021–2023). It combines common-rail direct injection with a variable geometry turbocharger and integrated exhaust manifold to deliver responsive performance and strong low-RPM torque. Designed to meet Euro 6d-ISC-FCM standards, it balances everyday drivability with stringent real-world emissions requirements.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged (VGT) | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 110 kW (150 PS) @ 3,250–4,200 rpm | |
Torque | 360 Nm @ 1,500–3,000 rpm | |
Fuel system | Bosch HPI8 high-pressure injection (up to 2,500 bar) | |
Emissions standard | Euro 6d-ISC-FCM | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled, dual-circuit with electric coolant pump | |
Turbocharger | Single variable-geometry turbo (Garrett), water-cooled | |
Timing system | Chain-driven (front-mounted, two-stage) | |
Oil type | VW 504 00 / 507 00 (SAE 5W-30) | |
Dry weight | 144 kg |
The Audi CRLA was used across Audi's 8Y/B9/8U platforms with transverse mounting in front-wheel-drive variants and longitudinal in quattro models. This engine received platform-specific adaptations-integrated exhaust manifold in the A3 8Y and revised cooling layout in the Q3 8U-and from 2022 the facelifted A4 B9.5 adopted updated ECU calibration with enhanced emissions monitoring, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The CRLA's primary reliability risk is high-pressure injector coking, particularly in vehicles used for short trips or prolonged idling. Audi's internal field reports from 2023 indicated over 12% of pre-2022 units required injector servicing before 140,000 km, while UK DVSA data shows increased emissions-related MOT failures in diesel vehicles with SCR systems. Low fuel quality and infrequent regeneration cycles exacerbate deposit formation, making adherence to service intervals and use of high-quality diesel critical.
Analysis derived from Audi technical bulletins (2021-2023) and UK DVSA failure statistics (2021-2023). 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 CRLA is generally reliable when maintained properly, though pre-2022 models are prone to injector coking in idle-heavy usage. Post-2022 revisions with improved nozzle coatings enhance durability. Regular oil changes with VW 504 00/507 00 oil and periodic injector inspection significantly extend service life. Well-maintained units can exceed 250,000 km.
The most frequent issues are high-pressure injector coking, DPF regeneration failure, turbo actuator sticking, and oil leaks from the valve cover. These are documented in Audi service bulletins. Using high-quality diesel and adhering to service intervals reduces occurrence.
The CRLA engine was used in the Audi A3 (8Y, 2021–2023), A4 (B9, 2021–2023), and Q3 (8U, 2021–2023) as the 2.0 TDI 150 PS variant. It replaced earlier EA288 evo units and was phased out in favour of newer diesel engines. All models comply with Euro 6d-ISC-FCM and include SCR with AdBlue for NOx reduction.
Yes, the CRLA responds well to ECU remapping. Stage 1 tunes typically yield +30–40 kW safely, as the stock turbo and internals handle increased torque. Some tuners offer up to 190 PS with supporting mods. However, over-tuning can accelerate DPF and injector issues, so conservative tuning and maintenance are advised.
Excellent. In an A4 2.0 TDI (150 PS), combined consumption is ~4.8 L/100km (~59 mpg UK). Highway driving can achieve ~4.3 L/100km (~65 mpg UK), while city use ranges 5.8–6.5 L/100km (~43–48 mpg UK). Real-world figures depend on driving style, but 50–60 mpg UK is typical for mixed use.
Yes. The CRLA 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 beyond 200,000 km. Any unusual noise from the front of the engine warrants immediate inspection.
Audi specifies VW 504 00 / 507 00 (SAE 5W-30) synthetic oil. Change intervals should not exceed 15,000 km or 1 year. This oil is critical for turbo, DPF, SCR, and injector longevity. Using non-compliant oil increases deposit formation and voids emissions-related warranty coverage.
Comprehensive technical documentation and regulatory references
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AUDI Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
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