The Volkswagen DEJB is a 1,498 cc, inline‑four turbocharged petrol engine produced between 2019 and 2024. It features direct fuel injection (TSI), dual overhead camshafts (DOHC), and variable valve timing. In standard form it delivered 110 kW (150 PS) and 250 Nm of torque, with strong mid‑range response ideal for compact and crossover applications.
Fitted to models such as the Mk8 Golf, T — Cross, and T — Roc—including the Golf 1.5 TSI EVO and T — Roc 1.5 TSI—the DEJB was engin…
Production years 2019–2020 meet Euro 6d-TEMP standards; 2021–2024 models meet Euro 6d compliance .
The Volkswagen DEJB is a 1,498 cc inline‑four turbocharged petrol engineered for compact and crossover models (2019–2024). It combines direct fuel injection (TSI) with a single turbocharger and Miller-cycle valve timing to deliver responsive mid‑range torque and efficient highway cruising. Designed to meet Euro 6d-TEMP and Euro 6d emissions standards, it balances performance with low particulate emissions.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,498 cc | |
Fuel type | Petrol (Unleaded) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.5 mm × 85.9 mm | |
Power output | 110 kW (150 PS) | |
Torque | 250 Nm @ 1,500–3,500 rpm | |
Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
Emissions standard | Euro 6d-TEMP (2019–2020); Euro 6d (2021–2024) | |
Compression ratio | 12.5:1 (effective via Miller cycle) | |
Cooling system | Water‑cooled | |
Turbocharger | Single turbo (Honeywell TD035) | |
Timing system | Chain (front‑mounted; low‑wear design) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 118 kg |
The Volkswagen DEJB was used across Volkswagen's Mk8 and MQB A0 platforms with transverse mounting. This engine received platform-specific adaptations—revised cooling in the Golf Mk8 and reinforced mounts in the T-Roc—and from 2021 all variants adopted updated camshaft metallurgy per service bulletin, creating minor service part interchange limits. The DEJB is exclusive to Volkswagen Group and not shared with Škoda or SEAT in this displacement/power configuration. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The DEJB offers strong efficiency and performance, but pre-2021 models are prone to HPFP cam lobe wear. Post-2021 revisions improved durability. With correct oil (VW 508 00/509 00), regular highway driving for GPF regeneration, and conservative driving, it can be dependable beyond 200,000 km.
Top issues include HPFP cam lobe wear, GPF clogging due to short trips, intake valve carbon buildup, and PCV valve failure in the rocker cover. These are documented in Volkswagen service bulletin 2020‑04‑TSI.
The DEJB appears in the Golf Mk8, T-Cross, T-Roc, and Taigo from 2019–2024 as the 1.5 TSI EVO 150 PS. It’s part of the EA211 EVO family and is not used in Škoda or SEAT applications in this configuration.
Aftermarket ECU tuning is common on the DEJB platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In a Golf 1.5 TSI EVO 150 PS, expect ~6.0 L/100km (city) and ~4.2 L/100km (highway), or about 52 mpg UK combined. Real-world mixed driving typically returns 48–55 mpg (UK) with conservative use.
Yes. The DEJB is an interference engine. Timing chain failure—though rare—can cause piston-to-valve contact and catastrophic damage. However, the front-mounted chain is robust with proper oil maintenance.
Volkswagen specifies SAE 0W‑20 oil meeting VW 508 00 or 509 00 standards. Using non-approved oil risks HPFP and camshaft wear. Change every 15,000 km or annually.
Comprehensive technical documentation and regulatory references
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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)
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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.
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