The Volvo B5204T5 is a 1,984 cc, inline‑five turbocharged petrol engine produced between 1999 and 2002. It features a cast iron block, aluminum head, and dual overhead camshafts (DOHC) driven by a timing belt. This high-performance engine was engineered for Volvo's compact executive models, delivering exhilarating power with Volvo's signature smoothness.
Fitted primarily to the Volvo S40 and V40 (first generation) T5 models, the B5204T5 was designed for track-capable acceleration and refined power delivery, leveraging a low-inertia turbocharger for minimal lag. 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 turbocharger's oil return line to internal coking and restriction, potentially leading to premature seal failure and oil leakage into the compressor housing, as noted in Volvo Service Bulletin #SB-99-38. The engine was eventually superseded by the updated B5234T3 variant.
Production years 1999–2002 meet Euro 3 emissions standards (VCA UK Type Approval applicable for registered imports).
The Volvo B5204T5 is a 1,984 cc inline‑five turbocharged petrol engine engineered for high-performance compact sedans and wagons (1999-2002). It combines a dual overhead camshaft design with a low-inertia turbocharger and Bosch Motronic fuel injection to deliver smooth, linear power with a distinctive five-cylinder character. Designed to meet Euro 3 emissions standards, it prioritizes driver engagement and everyday usability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,984 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑5, DOHC, 20‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 81.0 mm × 77.0 mm | |
| Power output | 147 kW (200 PS) | |
| Torque | 240 Nm @ 2,100 rpm | |
| Fuel system | Bosch Motronic 4.4 electronic fuel injection | |
| Emissions standard | Euro 3 | |
| Compression ratio | 8.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Garrett GT1549V (low-inertia) | |
| Timing system | Toothed belt (interference design) | |
| Oil type | SAE 5W-30 (Semi-Synthetic) | |
| Dry weight | 145 kg |
The inline-five configuration provides a unique, smooth power delivery with strong mid-range torque, ideal for spirited driving. Strict adherence to the 80,000 km timing belt replacement interval is critical to prevent catastrophic engine failure. SAE 5W-30 semi-synthetic oil is recommended. The turbocharger's oil return line is a known failure point; inspect for coking or leaks. 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 (1999-2002) (VCA UK Type Approval applicable for registered imports).
Power Ratings: Measured under SAE net horsepower standards (post-1972). Output is specific to the B5204T5 'T5' variant (Volvo Workshop Manual 1999).
Volvo Workshop Manual (1999 Edition)
Volvo Owner's Manual (2000)
Volvo EPC Archive: Doc. VEP-5204T5-99
Volvo Service Bulletin #SB-99-38
The Volvo B5204T5 was used across Volvo's S40/V40 T5 platform with transverse mounting. This engine received specific ECU and turbocharger tuning for the T5 performance variant, creating distinct power characteristics. 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 B5204T5 block is 'B5204'. Visual identification: Features a DOHC valve cover, Bosch Motronic ECU, a prominent Garrett GT1549V turbocharger on the exhaust manifold, and a "T5" badge on the rear of the vehicle. Differentiate from the naturally aspirated B5204S by the presence of the turbocharger and associated plumbing.
The B5204T5's primary reliability risk is oil leakage from the turbocharger due to a coked oil return line. Volvo service data from the early 2000s indicates this was a frequent cause of warranty claims, particularly in vehicles used for spirited driving without adhering to cooldown procedures. Strict adherence to operating procedures and preventative maintenance is critical to avoid costly repairs.
Analysis derived from Volvo technical bulletins (1999-2002) and workshop manuals (1999-2001). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLVO B-5204-T5.
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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