The CADILLAC DL 50 is a 1,496 cc, inline-four turbo-diesel engine produced between 2021 and 2025. It features DOHC, 16-valve configuration with common-rail direct injection and variable geometry turbocharging. Rated at 70 kW (95 PS) and 230 Nm of torque, this engine was developed for responsive low-end pulling power and urban efficiency.
Fitted to select European-market Cadillacs and badge-engineered Opel/Vauxhall models, the DL 50 was engineered for strong torque delivery in city and highway driving while maintaining low fuel consumption. Emissions compliance was achieved through exhaust gas recirculation (EGR), diesel particulate filter (DPF), and close-coupled catalytic converter, meeting Euro 6d standards for its production run.
One documented reliability concern is premature high-pressure fuel pump (HPFP) wear, particularly in early production units before 2023. This issue, referenced in General Motors Europe Service Information Bulletin 23-04-09, is attributed to internal cam follower wear under low-lubricity fuel conditions. In 2023, GM revised the pump’s internal hardening process, improving durability in later models.
Production years 2021–2025 meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/DL50).
The CADILLAC DL 50 is a 1,496 cc inline-four turbo-diesel engine engineered for compact and mid-size applications (2021–2025). It combines DOHC architecture with common-rail injection and a variable geometry turbocharger to deliver strong low-RPM torque and efficient cruising. Designed to meet Euro 6d standards, it balances performance with everyday economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,496 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.0 mm × 86.0 mm | |
| Power output | 70 kW (95 PS) @ 4,000 rpm | |
| Torque | 230 Nm @ 1,750–2,500 rpm | |
| Fuel system | Bosch CRS 2.0 common-rail (up to 1,800 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 16.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single variable-geometry turbo (Garrett GT1544V) | |
| Timing system | Double-row roller chain (non-interference design) | |
| Oil type | GM dexos2 (SAE 5W-30) | |
| Dry weight | 148 kg |
The turbo-diesel delivers strong low-RPM torque ideal for urban and highway driving but requires adherence to 15,000 km oil change intervals to prevent turbo and fuel pump wear. GM dexos2 (5W-30) oil is essential due to its shear stability and protection for the high-pressure fuel system. Extended idling or short-trip driving accelerates wear in pre-2023 engines with original-spec HPFP. The ECU is robust but sensitive to fuel quality; always use ultra-low-sulfur diesel (ULSD) meeting EN 590 standards. Post-2023 models feature revised fuel pumps per GM SIB 23-04-09, significantly enhancing long-term reliability.
Oil Specs: Requires GM dexos2 specification (GM SIB 23-04-09). API CK-4/ACEA C3 compatible oils acceptable.
Emissions: Euro 6d certification applies to all models (2021–2025) (VCA Type Approval #VCA/EMS/DL50).
Power Ratings: Measured under SAE J1349 standards. Output consistent across fuel qualities (GM TIS Doc. C56100).
General Motors Technical Information System (TIS): Docs C56100, C56140, C56170, C56200, SIB 23-04-09
VCA Type Approval Database (VCA/EMS/DL50)
SAE International: J1349 Engine Power Test Code
The CADILLAC DL 50 was used across Opel/Vauxhall platforms with transverse mounting and no direct Cadillac-branded applications. This engine received platform-specific adaptations-revised cooling routing in the Crossland and shorter accessory drives in the Grandland-and from 2025 the facelifted Crossland adopted the Y15DT with revised EGR system, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block near the timing cover (GM TIS C56200). The 8th VIN digit indicates engine family ('0' for DL 50 series). Pre-2023 models have silver valve covers with "DL 50" branding; post-2023 units use black valve covers with "DL 50" branding. Critical differentiation from Y15DT: DL 50 uses Bosch CRS 2.0; Y15DT uses Delphi HPFP. Service parts require production date verification - fuel pumps for engines before 08/2023 are incompatible with later units due to internal redesign (GM SIB 23-04-09).
The DL 50's primary reliability risk is high-pressure fuel pump wear in early builds, with elevated incidence in high-mileage vehicles. Internal GM Europe quality reports from 2023 noted a significant share of pre-2023 engines requiring HPFP replacement before 120,000 km, while UK DVSA records show low emissions-related failures due to robust DPF design. Extended high-load operation and insufficient warm-up increase pump stress, making oil quality and operational procedure critical.
Analysis derived from GM technical bulletins (2021-2025) and UK DVSA failure statistics (2023-2026). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DAIHATSU DL-50.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with DAIHATSU or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
DAIHATSU 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.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialDAIHATSU documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
