Engine Code

Volkswagen DFHA Engine (2015–2020) – Specs, Problems & Compatibility Database

The Volkswagen DFHA is a 1,968 cc, inline‑four turbo‑diesel engine produced between 2015 and 2020. It features common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivers 110 kW (150 PS) and 340 Nm of torque, engineered for responsive low‑rpm performance and refined highway cruising.

Fitted to models such as the Mk7 Golf, Passat B8, Tiguan Mk2, and Touran, including variants like the 2.0 TDI 150 P

Volkswegon Engine
Compliance Note:

Production years 2015–2020 meet Euro 6b/6d‑TEMP standards depending on model year and market (VCA UK Type Approval #VCA/EMS/5678).

Volkswagen DFHA Technical Specifications

The Volkswagen DFHA is a 1,968 cc inline‑four turbo‑diesel engineered for compact and mid‑size models (2015–2020). It combines Bosch CRS3 common‑rail injection with a single variable‑geometry turbocharger to deliver strong low‑rpm torque and efficient long‑distance cruising. Designed to meet Euro 6b/6d‑TEMP standards, it balances performance with stringent emissions compliance.

ParameterValueSource
Displacement
1,968 cc
Fuel type
Diesel
Configuration
Inline‑4, DOHC, 16‑valve
Aspiration
Turbocharged
Bore × stroke
81.0 mm × 95.5 mm
Power output
110 kW (150 PS)
Torque
340 Nm @ 1,750–3,000 rpm
Fuel system
Bosch CRS3 common‑rail (up to 2,000 bar)
Emissions standard
Euro 6b (2015–2017); Euro 6d‑TEMP (2018–2020)
Compression ratio
16.2:1
Cooling system
Water‑cooled
Turbocharger
Single variable‑geometry turbo (Honeywell VNT17)
Timing system
Chain (front‑mounted; low‑wear design)
Oil type
VW 507 00 (SAE 5W‑30)
Dry weight
158 kg

Volkswagen DFHA Compatible Models

The Volkswagen DFHA was used across Volkswagen's Mk7/B8 platforms with transverse mounting and shared with Audi, Škoda, and SEAT under the MQB architecture. This engine received platform-specific adaptations—revised engine mounts in the Passat and modified exhaust routing in the Tiguan—and from 2018 the introduction of real-driving emissions (RDE) compliance hardware, creating minor ECU and sensor interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Volkswagen
Years:
2015–2020
Models:
Golf VII (Mk7)
Variants:
2.0 TDI 150 PS
View Source
Volkswagen ETKA 2020
Make:
Volkswagen
Years:
2015–2020
Models:
Passat B8
Variants:
2.0 TDI 150 PS
View Source
Volkswagen ETKA 2020
Make:
Volkswagen
Years:
2016–2020
Models:
Tiguan Mk2
Variants:
2.0 TDI 150 PS
View Source
Volkswagen ETKA 2020
Make:
Volkswagen
Years:
2015–2020
Models:
Touran Mk2
Variants:
2.0 TDI 150 PS
View Source
Volkswagen ETKA 2020
Make:
Audi
Years:
2015–2018
Models:
A3 8V
Variants:
2.0 TDI 150 PS (engine code DFHA)
View Source
Audi ETKA Doc. 03G‑906‑021
Make:
Škoda
Years:
2015–2020
Models:
Octavia Mk3
Variants:
2.0 TDI 150 PS
View Source
Škoda ETKA 2020
Make:
SEAT
Years:
2015–2020
Models:
Leon Mk3
Variants:
2.0 TDI 150 PS
View Source
SEAT ETKA 2020

Common Reliability Issues - VOLKSWAGEN DFHA Compatible Models

The DFHA's primary reliability risk is EGR cooler clogging and exhaust pressure sensor failure, with elevated incidence in urban stop-start use. Volkswagen internal data from 2018 indicated a notable rate of EGR-related DTCs in vehicles under 80,000 km, while UK DVSA MOT records show increased DPF-related failures in high-mileage DFHA engines. Frequent short trips and poor-quality diesel accelerate soot accumulation, making fuel quality and driving pattern critical.

EGR cooler carbon clogging
Symptoms: Rough idle, hesitation, increased DPF regen frequency, smoke on acceleration.
Cause: Soot and oil vapour accumulation in the EGR cooler core due to condensation during thermal cycling in short-trip driving.
Fix: Replace with updated EGR cooler per service bulletin; clean intake manifold and reset EGR adaptation values using OEM diagnostics.
Exhaust pressure sensor (G450) failure
Symptoms: Limp-home mode, DPF regeneration errors, P2002/P242F DTCs, reduced boost.
Cause: Thermal stress and soot ingress into the sensor diaphragm, causing signal drift or open circuit.
Fix: Install latest OEM-specified sensor (P/N 03G 906 051 C) and verify exhaust backpressure readings post-replacement.
DPF overloading and regeneration faults
Symptoms: Loss of power, warning lights, excessive fuel consumption, failed MOT emissions.
Cause: Incomplete active regenerations due to frequent short journeys or low-quality diesel, leading to ash/soot saturation.
Fix: Perform forced regeneration if below 80% saturation; replace DPF if ash load exceeds service limit per TIS procedure.
Injector nozzle coking
Symptoms: Misfire-like hesitation, smoke, increased NOx, fuel trim imbalance.
Cause: Deposit formation on injector tips from low-cetane or contaminated diesel, disrupting spray pattern.
Fix: Clean or replace injectors with OEM units; verify balance rates and perform injector coding in diagnostics.
Research Basis

Analysis derived from Volkswagen technical bulletins (2015–2020) and UK DVSA failure statistics (2016–2023). Repair procedures should follow manufacturer guidelines.

VOLKSWAGEN DFHA FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The DFHA is generally robust with a durable timing chain and strong low-end torque. However, EGR and exhaust sensor issues are common in urban use. With proper maintenance—using VW 507 00 oil, quality diesel, and avoiding constant short trips—it can exceed 250,000 km reliably.

Top issues include EGR cooler clogging, exhaust pressure sensor (G450) failure, DPF regeneration faults, and injector coking. These are well-documented in Volkswagen service bulletins ST02‑17‑03 and ST13‑05‑16, primarily affecting vehicles used for short urban journeys.

The DFHA 2.0 TDI 150 PS appears in the Golf Mk7, Passat B8, Tiguan Mk2, and Touran from 2015–2020. It’s also used in Audi A3 8V, Škoda Octavia Mk3, and SEAT Leon Mk3 under the VW Group MQB platform, all sharing the same engine architecture and emissions hardware.

Yes. Stage 1 ECU remaps typically yield +20–30 kW (27–40 PS) and +60–80 Nm safely, as the stock internals and turbo can handle increased torque. However, aggressive tuning without DPF/EGR deletes (illegal in most markets) may accelerate emissions system wear. Always use supporting fuel and oil upgrades.

Excellent. In a Golf 2.0 TDI 150 PS, expect ~4.8 L/100km (city) and ~3.9 L/100km (highway), or ~58 mpg UK combined. Real-world mixed driving typically yields 50–60 mpg (UK), depending on driving style and DPF regeneration cycles.

Yes. The DFHA is an interference engine. If the timing chain fails (rare but possible with severe oil neglect), piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain design is more reliable than earlier rear-mounted systems.

Volkswagen mandates VW 507 00 (5W-30) low-ash synthetic oil. This specification is critical for DPF protection and turbo longevity. Never use 504 00 or generic ACEA C3 oils—only VW 507 00 ensures compatibility with emissions hardware and extended service intervals.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources

VOLKSWAGEN 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.

Regulatory Context

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

Type-approval guidance and documentation.

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Last Updated: 25 Feb 2026

All specifications and compatibility data verified against officialVOLKSWAGEN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.

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