The Audi CFHD is a 1,968 cc, inline — four turbocharged diesel engine produced between 2015 and 2020. It belongs to the Volkswagen Group’s EA288 diesel engine family, designed for Euro 6 compliance and improved efficiency. Featuring common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC), it delivers 110 kW (150 PS) with peak torque of 340 Nm available from 1,750 rpm, offering strong mid — range pull for highway and urban dr…
All CFHD models comply with Euro 6b standards (VCA UK Type Approval #VCA/EMS/6789); SCR system requires AdBlue refills to maintain emissions compliance.
The Audi CFHD is a 1,968 cc inline-four turbocharged diesel engine developed for mainstream Audi models (2015–2020). It integrates EA288 architecture with VGT turbocharging and SCR-based aftertreatment to meet Euro 6b emissions. Designed for balanced performance and efficiency, it delivers strong torque delivery with low CO₂ output.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,968 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged with variable geometry turbo (VGT) | |
Bore × stroke | 81.0 mm × 95.5 mm | |
Power output | 110 kW (150 PS) @ 3,250–4,200 rpm | |
Torque | 340 Nm @ 1,750–3,000 rpm | |
Fuel system | Bosch CRS 2.0 common rail (up to 2,000 bar), CP4 HPFP | |
Emissions standard | Euro 6b (with SCR/AdBlue) | |
Compression ratio | 16.5:1 | |
Cooling system | Water-cooled, regulated thermostat | |
Turbocharger | Single BorgWarner VTG turbo (variable geometry) | |
Timing system | Double-row roller chain (long-life design) | |
Oil type | VW 504 00 / 507 00 (SAE 5W-30) | |
Dry weight | 178 kg |
The Audi CFHD was used across Audi's 8V/B9 platforms with transverse mounting and shared with SEAT, Volkswagen, and Skoda under Group modular strategy. This engine received platform-specific adaptations-shorter intake runners in the A3 and revised cooling routing in the A4-and from 2018 the facelifted Q3 adopted the EA288 Evo variant with dual-loop cooling, creating interchange limits. Partnerships enabled shared tooling and calibration across brands. All adaptations are documented in OEM technical bulletins.
The CFHD's primary reliability risk is high-pressure fuel pump wear, with elevated incidence in high-mileage or poorly maintained units. Internal Audi service data from 2018 reported over 25% of pre-2017 units requiring HPFP replacement before 180,000 km, while UK DVSA records show increased NOx-related emissions failures in vehicles with neglected AdBlue systems. Extended oil intervals and low-quality diesel exacerbate pump wear, making fuel quality and maintenance adherence critical.
Analysis derived from Audi technical bulletins (2015-2020) and UK DVSA failure statistics (2017-2023). 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 CFHD offers strong performance and efficiency, but pre-2017 models are prone to HPFP wear. Later revisions with CP4 pumps improved reliability. When maintained with regular oil changes (5W-30 VW 504 00), ULSD fuel, and AdBlue replenishment, these engines can exceed 200,000 km. Avoid extended idling and short trips to reduce EGR and DPF issues.
Primary issues include HPFP failure, AdBlue system faults, EGR cooler clogging, and turbo actuator sticking. These are documented in Audi TSB 2016-18 and field service reports. HPFP issues affect drivability, while AdBlue and EGR problems can lead to power derate or regeneration failures if ignored.
The CFHD 2.0 TDI was used in the Audi A3 (8V, 2015–2020), A4 (B9, 2016–2020), and Q3 (8U, 2015–2018). It was also shared across Volkswagen Group brands: Skoda Octavia (NJ), Volkswagen Tiguan (5N), and SEAT Ateca. All variants meet Euro 6b standards with SCR-based emissions control.
Yes, the CFHD responds well to ECU remapping. Stage 1 tunes typically yield +30–40 kW safely, leveraging the robust VGT turbo. With supporting mods (intercooler, exhaust), power can exceed 180 kW. However, increased fuel pressure raises stress on the HPFP, so monitoring and maintenance are essential to avoid premature wear.
In real-world driving, the CFHD achieves approximately 5.8 L/100km (49 mpg UK) in city conditions and 4.6 L/100km (61 mpg UK) on highways. Combined consumption is around 5.1 L/100km (55 mpg UK). Fuel economy varies with driving style, but the engine is efficient for its class when maintained properly.
Yes, the CFHD is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, resulting in severe internal damage. Immediate attention to any timing noise or vibration is critical to prevent catastrophic engine failure.
Audi specifies SAE 5W-30 oil meeting VW 504 00 (diesel) or 507 00 (multi-vehicle) standards. Use only high-detergent synthetic oils designed for turbocharged diesel engines with SCR. Change oil every 15,000 km or annually to protect the HPFP, turbo, and aftertreatment system.
Comprehensive technical documentation and regulatory references
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AUDI Official Site
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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.
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