The Volvo B 4184 S3 is a 1,969 cc, inline‑four turbocharged petrol engine produced between 2019 and 2023. It features a dual overhead camshaft (DOHC) and four valves per cylinder, delivering a blend of efficiency and responsive performance. The engine utilizes direct fuel injection and a single-scroll turbocharger to produce 140 kW (190 PS) and 300 Nm of torque, enabling strong low-end pull.
Fitted to the second-generation Volvo XC40 and S60/V60 platforms, the B 4184 S3 was engineered for drivers seeking a balance of fuel economy, spirited acceleration, and premium refinement. Emissions compliance was achieved through advanced engine management, a close-coupled catalytic converter, and particulate filter (OPF), meeting Euro 6d standards from launch.
One documented concern is premature failure of the timing chain tensioner, which can lead to chain rattle and potential engine damage. This issue, referenced in Volvo Service Bulletin S3-21-07, is often linked to material fatigue under sustained thermal and mechanical load. Volvo addressed this with a revised tensioner design and updated lubrication specifications in later production.
Production years 2019–2023 meet Euro 6d emissions standards across all markets (EU Regulation (EC) No 715/2007 as amended).
The Volvo B 4184 S3 is a 1,969 cc inline‑four turbocharged petrol engine engineered for compact premium SUVs and sedans (2019-2023). It combines direct fuel injection with a single-scroll turbocharger to deliver strong low-RPM torque and efficient cruising. Designed to meet Euro 6d standards from launch, it balances responsive performance with stringent emissions control.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,969 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 82.0 mm × 93.2 mm | |
| Power output | 140 kW (190 PS) | |
| Torque | 300 Nm @ 1,400–4,000 rpm | |
| Fuel system | Direct injection (Bosch HDEV6) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single-scroll turbo (Mitsubishi Heavy Industries) | |
| Timing system | Chain-driven camshafts | |
| Oil type | Volvo VCC 95200 (SAE 0W-20) | |
| Dry weight | 132 kg |
The turbocharged direct-injection design provides strong, linear torque ideal for urban and highway driving but requires strict adherence to 15,000 km oil change intervals to prevent carbon buildup and chain degradation. Volvo VCC 95200 (0W-20) oil is critical due to its low-viscosity formulation protecting the timing chain and turbo bearings. The timing chain tensioner demands high-quality lubrication; pre-2021 units should have the tensioner inspected if rattle is detected per Volvo SIB S3-21-07. The OPF requires high-quality fuel to prevent premature clogging.
Oil Specs: Requires Volvo VCC 95200 (0W-20) specification (Volvo Owner's Manual 2019). Supersedes ACEA C5 requirements.
Emissions: Euro 6d certification applies to all model years (2019-2023) for all markets (EU Regulation (EC) No 715/2007 as amended).
Power Ratings: Measured under DIN 70020 standards. Output is consistent across markets (Volvo PT-2021).
Volvo Technical Information System (TIS): Workshop Manuals XC40/S60/V60
Volvo Electronic Parts Catalogue (EPC) Documentation
EU Regulation (EC) No 715/2007 as amended
Volvo Service Bulletin S3-21-07
The Volvo B 4184 S3 was used across Volvo's XC40 and SPA platforms with transverse mounting. This engine received minor ECU tuning for different markets, but no major platform-specific adaptations that affect core compatibility. All variants share the same block, head, and mounting points. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the front of the engine block, near the timing cover (Volvo Workshop Manual). The code will read "B4184S3". Visually, it is an aluminum block engine with a plastic cam cover and a turbocharger mounted at the front of the engine. It is distinct from the larger B5204/B5254 engines by its smaller displacement and specific casting marks. Service parts for the B 4184 S3 are generally compatible across all XC40/S60/V60 applications from 2019-2023, but ECU software and emissions components may vary by market.
The B 4184 S3's primary reliability risk is timing chain tensioner failure, with elevated incidence in high-mileage or pre-2021 examples. Volvo internal service data indicated this was a leading cause of drivability complaints for early production units, while direct injection systems are susceptible to intake valve carbon buildup over time. Strict adherence to oil quality and change intervals is critical for longevity.
Analysis derived from Volvo technical bulletins (2019-2023) and aggregated workshop repair data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLVO B-4184-S3.
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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