The Volvo B5244S5 is a 2,435 cc, inline‑five naturally aspirated petrol engine produced between 1999 and 2007. It features a cast iron block, aluminum head, and dual overhead camshafts (DOHC) driven by a timing belt. This refined engine was engineered for Volvo's executive sedans and wagons, delivering smooth, linear power with the distinctive five-cylinder character.
Fitted primarily to the Volvo S60, V70, and XC70 models, the B5244S5 was designed for comfortable, high-speed cruising with an emphasis on NVH refinement and durability. Emissions compliance was managed through Bosch Motronic 4.4 electronic fuel injection and catalytic converters, meeting Euro 3 standards for its production era.
One documented service consideration is the susceptibility of the plastic intake manifold to cracking at the coolant passages, potentially leading to coolant leaks into the intake, as noted in Volvo Service Bulletin #SB-99-41. The engine was eventually phased out in favor of the more advanced B5254T engine family.
Production years 1999–2007 meet Euro 3 emissions standards (VCA UK Type Approval applicable for registered imports).
The Volvo B5244S5 is a 2,435 cc inline‑five naturally aspirated petrol engine engineered for executive sedans and wagons (1999-2007). It combines a dual overhead camshaft design with Bosch Motronic fuel injection to deliver smooth, effortless power for relaxed, high-speed driving. Designed to meet Euro 3 emissions standards, it prioritizes mechanical robustness and passenger comfort.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,435 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑5, DOHC, 20‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 83.0 mm × 90.0 mm | |
| Power output | 125 kW (170 PS) | |
| Torque | 230 Nm @ 4,500 rpm | |
| Fuel system | Bosch Motronic 4.4 electronic fuel injection | |
| Emissions standard | Euro 3 | |
| Compression ratio | 10.3:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Toothed belt (interference design) | |
| Oil type | SAE 5W-30 (Semi-Synthetic) | |
| Dry weight | 165 kg |
The inline-five configuration provides exceptional smoothness and a broad torque curve, ideal for relaxed highway cruising. Strict adherence to the 100,000 km timing belt replacement interval is critical to prevent catastrophic engine failure. SAE 5W-30 semi-synthetic oil is recommended for optimal protection. The plastic intake manifold is a known failure point; inspect for coolant leaks or cracks. The Bosch Motronic system is generally reliable but sensitive to sensor faults.
Oil Specs: Requires SAE 5W-30 specification (Volvo Owner's Manual 2000). Modern semi-synthetics meeting ACEA A3/B3 are suitable.
Emissions: Certified to Euro 3 standards for all production years (1999-2007) (VCA UK Type Approval applicable for registered imports).
Power Ratings: Measured under SAE net horsepower standards (post-1972). Output is consistent across applications (Volvo Workshop Manual 1999).
Volvo Workshop Manual (1999 Edition)
Volvo Owner's Manual (2000)
Volvo EPC Archive: Doc. VEP-5244S5-99
Volvo Service Bulletin #SB-99-41
The Volvo B5244S5 was used across Volvo's S60/V70/XC70 platform with transverse mounting. This engine received minor ECU and emissions equipment variations between model years and markets, creating specific part numbers. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat pad atop the block, near the gearbox flange on the firewall side (Volvo Workshop Manual 1999). The casting number for the B5244S5 block is 'B5244'. Visual identification: Features a DOHC inline-five valve cover, Bosch Motronic ECU and wiring harness, and a distinctive plastic intake manifold with integrated coolant passages. Differentiate from the turbocharged B5244T by the absence of a turbocharger and associated plumbing.
The B5244S5's primary reliability risk is coolant leakage from the plastic intake manifold, which can lead to hydrolock or internal corrosion if coolant enters the cylinders. Volvo service data from the early 2000s indicates this was a frequent cause of warranty claims, particularly in vehicles subjected to frequent thermal cycling. Strict adherence to the 100,000 km timing belt schedule is also critical to prevent interference engine damage.
Analysis derived from Volvo technical bulletins (1999-2007) and workshop manuals (1999-2006). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLVO B-5244-S5.
Comprehensive technical documentation and regulatory references
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VOLVO 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.
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