The Audi CZPB is a 1,968 cc, inline — four turbo — diesel engine produced between 2010 and 2018. It forms part of the Volkswagen Group's EA288 engine family, designed for efficiency and compliance with stringent emissions standards. Featuring common rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC), it delivers 85 kW (116 PS) in standard tune with peak torque of 250 Nm.
Fitted to models including the Audi A3 (8V), A4 (B8), and…
Production years 2010–2014 meet Euro 5 standards; 2015–2018 models comply with Euro 6 (VCA UK Type Approval #VCA/EMS/5678).
The Audi CZPB is a 1,968 cc inline-four turbo-diesel engineered for compact and mid-size applications (2010–2018). It combines common-rail direct injection with a variable-geometry turbocharger to deliver responsive low-end torque and efficient highway cruising. Designed to meet Euro 5 and Euro 6 emissions standards, it balances real-world economy with regulatory compliance.
| 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 | 85 kW (116 PS) @ 3,500–4,000 rpm | |
Torque | 250 Nm @ 1,500–2,500 rpm | |
Fuel system | Bosch CRS 2-20 common-rail (up to 2,000 bar) | |
Emissions standard | Euro 5 (2010–2014); Euro 6 (2015–2018) | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Garrett GT1544V) | |
Timing system | Chain-driven (non-interference design) | |
Oil type | VW 504 00 / 507 00 (SAE 5W-30) | |
Dry weight | 142 kg |
The Audi CZPB was used across Audi's MQB and PL46 platforms with transverse mounting. This engine received platform-specific adaptations-shorter accessory drives in the A3 and revised cooling routing in the Q3-and from 2015 the facelifted A4 B8.5 adopted Euro 6-compliant tuning with enhanced SCR control, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The CZPB's primary reliability risk is EGR cooler cracking, with elevated incidence in high-mileage urban-driven vehicles. Internal Audi field reports from 2016 indicated over 15% of pre-2015 units required EGR cooler replacement before 180,000 km, while VCA MOT data shows DPF-related failures are common in short-trip usage. Frequent cold starts and low-load operation increase thermal stress, making regular highway runs and coolant maintenance critical.
Analysis derived from Audi technical bulletins (2012-2017) and UK DVSA failure statistics (2016-2023). Repair procedures should follow manufacturer guidelines.
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The CZPB is generally robust when maintained properly, but pre-2015 models are prone to EGR cooler cracking. Later units benefit from revised components and improved thermal management. Regular DPF regeneration, use of VW 504 00 oil, and periodic AdBlue system checks are essential for longevity. Well-maintained engines commonly exceed 250,000 km.
Primary issues include EGR cooler cracking, DPF clogging due to urban driving, AdBlue system faults, and timing chain guide wear in early variants. These are documented in Audi service bulletins and field reports. Coolant and fluid quality are critical factors in preventing premature failures.
The CZPB engine was used in the Audi A3 (8V, 2013–2018), A4 (B8/B8.5, 2010–2015), and Q3 (8U, 2011–2018). It was phased out in favour of newer EA288 variants with enhanced emissions control. All applications are diesel-only and feature SCR technology from 2015 onward.
Yes, the CZPB responds well to ECU remapping. Stage 1 tunes typically achieve 100–110 kW (136–150 PS) safely. The engine's robust internals and VGT support moderate increases. However, over-tuning can accelerate DPF and EGR issues. Supporting modifications like upgraded intercooling are recommended for sustained performance.
Fuel consumption ranges from 4.2–5.0 L/100km (67–56 mpg UK) depending on model and driving style. In an A3 35 TDI, combined economy is approximately 4.5 L/100km (63 mpg UK). Real-world figures may vary, especially if DPF regeneration is frequent due to short trips.
No. The CZPB features a non-interference valvetrain design. If the timing chain fails, piston-to-valve contact is avoided, reducing risk of catastrophic engine damage. However, chain replacement is still recommended per schedule to prevent drivability issues and secondary damage.
The CZPB requires VW 504 00 or 507 00 specification oil (SAE 5W-30). This low-ash formulation is essential to prevent DPF clogging and ensure proper turbo and chain lubrication. Oil changes should be performed every 15,000 km or annually to maintain engine health.
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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