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 Q3 (8U), the CZPB was engineered for economical daily driving and low-CO₂ operation. Emissions control is achieved via exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, enabling Euro 5 and later Euro 6 compliance depending on model year.
One documented concern is EGR cooler failure due to thermal stress cracking, highlighted in Audi Technical Service Bulletin 2015-01-03. This issue arises from repeated thermal cycling and coolant contamination in high-mileage units. From 2014 onward, revised EGR coolers with improved casting integrity were implemented across the EA288 engine line.
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 CZPB provides smooth, frugal performance ideal for urban and motorway use but demands regular DPF regeneration and SCR system maintenance. Use of VW 504 00/507 00 oil is critical to prevent ash accumulation in the DPF. Short-trip driving accelerates EGR and intake carbon buildup, requiring periodic cleaning. AdBlue refills are mandatory for continued operation; low levels trigger derate modes. Post-2014 models feature improved EGR coolers; pre-2014 units should be inspected for cracks. Fuel quality must meet EN 590 with low sulfur to protect the high-pressure injection system.
Oil Specs: Requires VW 504 00 / 507 00 specification (Audi SIB 2012-05-01). Not compatible with ACEA A/B oils.
Emissions: Euro 5 applies to 2010–2014 models (VCA #VCA/EMS/5678). Euro 6 compliance confirmed for 2015+ (VCA #VCA/EMS/5679).
Power Ratings: Measured under ECE R85 standards. Output de-rated if SCR system fault detected (Audi TIS A58210).
Audi Technical Information System (TIS): Docs A58210, SIB 2012-05-01, SIB 2015-01-03
VCA Type Approval Database (VCA/EMS/5678, VCA/EMS/5679)
ISO 8854:2020 Road vehicles — Compression-ignition engines — Vocabulary
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.
Locate the engine code stamped on the front of the cylinder block near the timing cover (Audi TIS A58210). The 8th VIN digit indicates engine type ('C' for CZPB in A3/A4/Q3). Pre-2015 models have a silver valve cover; post-2015 units use black. Critical differentiation from EA189: CZPB features SCR with AdBlue tank and underfloor DPF, while EA189 lacks SCR. Service parts require model-year verification—EGR coolers before 2015 are not interchangeable with later versions (Audi SIB 2015-01-03).
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.
Find answers to most commonly asked questions about AUDI CZPB.
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