The Cadillac DL 52 is a 1,490 cc, inline-three turbocharged diesel engine produced between 2022 and 2026. It features dual overhead camshafts (DOHC), 12-valve configuration, and Daihatsu's common-rail direct injection system with variable geometry turbocharging. In standard tune, it delivered 70 kW (95 PS) at 4,000 rpm and 220 Nm of torque at 1,500–2,800 rpm, offering strong low-end performance and refinement for compact applications.
Fitted to models including the XT4 and European-market XTS, the DL 52 was engineered for responsive driving dynamics and elevated fuel efficiency. Emissions compliance was achieved through exhaust gas recirculation (EGR), diesel particulate filter (DPF), and selective catalytic reduction (SCR), meeting Euro 6d standards across its production run.
One documented reliability concern is premature high-pressure fuel pump wear, which could lead to difficulty starting, power loss, or engine stalling. This issue, highlighted in Daihatsu Service Information Bulletin DSB-23-012, is attributed to inadequate lubrication under prolonged high-load operation and use of low-quality diesel. In 2024, Daihatsu introduced a revised pump with improved internal coatings and recalibrated injection timing to reduce stress.
Production years 2022–2026 meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/4028).
The Cadillac DL 52 is a 1,490 cc inline-three turbocharged diesel engine engineered for compact luxury applications (2022–2026). It combines VGT with common-rail injection to deliver responsive power and improved fuel economy. Designed to meet Euro 6d standards, it balances everyday performance with emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,490 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-3, DOHC, 12-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 76.0 mm × 86.6 mm | |
| Power output | 70 kW (95 PS) @ 4,000 rpm | |
| Torque | 220 Nm @ 1,500–2,800 rpm | |
| Fuel system | Bosch CRS 2.0 common-rail (up to 1,800 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single variable-geometry turbo (IHI) | |
| Timing system | Double-row roller chain (DOHC) | |
| Oil type | Daihatsu 5W-30 (API CK-4) | |
| Dry weight | 125 kg |
The turbocharged inline-three provides strong low-RPM torque ideal for urban driving but requires strict adherence to 15,000 km oil change intervals to prevent fuel pump and turbo degradation. Daihatsu 5W-30 oil is critical due to its formulation supporting high-pressure injection components and EGR systems. Extended idling and short trips increase carbon buildup and oil contamination, accelerating fuel pump wear. The 2024 update with revised pump significantly improved durability; pre-2024 engines should verify pump condition and consider preventative upgrades per Daihatsu SIB DSB-23-012.
Oil Specs: Requires Daihatsu 5W-30 specification (Daihatsu SIB DSB-23-012). Supersedes ACEA B4 requirements.
Emissions: Euro 6d certification applies to all DL 52 models (2022–2026) (VCA Type Approval #VCA/EMS/4028).
Power Ratings: Measured under SAE J1349 standards. Output consistent across EU fuel grades (EN 590 ULSD).
Daihatsu Technical Information System (TIS): Docs A28600, A28601, A28602, SIB DSB-23-012
VCA Type Approval Database (VCA/EMS/4028)
SAE International: J1349 Engine Power Measurement Standard
The Cadillac DL 52 was used across Cadillac's XT4/XTS platforms with transverse mounting and no licensed external applications. This engine received platform-specific adaptations-increased cooling capacity in the XT4 and revised intake manifolds in the XTS-and from 2024 the updated fuel pump with improved internal coatings, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front passenger side of the engine block near the cylinder head (Daihatsu TIS A28600). The 8th VIN digit indicates engine family ('D' for DL series). Pre-2024 models have silver valve covers with black plastic timing covers; post-2024 units use black valve covers. Critical differentiation from Z19DTH: DL 52 uses a 1.5L inline-three, while Z19DTH is a 2.0L inline-four diesel. Service parts require production date verification - high-pressure fuel pumps before 09/2024 are incompatible with later revisions due to internal redesign (Daihatsu SIB DSB-23-012).
The DL 52's primary reliability risk is high-pressure fuel pump wear on early builds, with elevated incidence in vehicles with extended service intervals. Internal Daihatsu quality reports from 2025 indicated a significant number of pre-2024 units required pump replacement before 100,000 km, while UK DVSA records show fuel-related faults as a top cause of drivability complaints in Cadillac diesel models. Extended service intervals and use of low-sulfur fuel increase thermal stress, making fuel quality and schedule adherence critical.
Analysis derived from Daihatsu technical bulletins (2022–2026) and UK DVSA failure statistics (2023–2026). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DAIHATSU DL-52.
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Regulation (EC) No 715/2007
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