The Volvo B 4204 T6 is a 1,984 cc, inline‑five turbocharged petrol engine produced between 1999 and 2004. It featured a dual overhead camshaft (DOHC) design with an aluminum cylinder head, representing Volvo's high-performance 20-valve architecture. Output ranged from 191 kW (260 PS) to 200 kW (272 PS), with torque figures between 350–380 Nm, providing exhilarating acceleration and strong mid-range pull.
Fitted primarily to the Volvo S60 R, V70 R, and S80, the B 4204 T6 was engineered for drivers seeking a blend of luxury, all-weather capability, and sports car performance. Emissions compliance was achieved through multi-point fuel injection, catalytic converters, and secondary air injection, meeting Euro 3 standards for its production period. Its design prioritized high-revving power delivery and turbo responsiveness.
One documented concern is premature failure of the turbocharger wastegate actuator, which can lead to boost control faults and overboost conditions. This issue, referenced in Volvo Service Bulletin #4204T6-01, is often linked to heat cycling and mechanical fatigue. In 2002, Volvo introduced a revised actuator design to improve durability.
Production years 1999–2004 meet Euro 3 standards (EU Regulation (EC) No 715/2007 historical annex).
The Volvo B 4204 T6 is a 1,984 cc inline‑five turbocharged petrol engine engineered for premium sports sedans and estates (1999-2004). It combines a dual overhead camshaft (DOHC) 20-valve design with a twin-scroll turbocharger to deliver strong, linear power delivery. Designed to meet Euro 3 emissions standards, it relies on sophisticated engine management and catalytic converters for compliance.
| 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 | 191–200 kW (260–272 PS) | |
| Torque | 350–380 Nm @ 2,400–5,200 rpm | |
| Fuel system | Bosch Motronic 4.4 multi-point fuel injection | |
| Emissions standard | Euro 3 | |
| Compression ratio | 8.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Garrett GT2556V twin-scroll turbo | |
| Timing system | Belt-driven camshafts | |
| Oil type | SAE 0W-40 (Volvo VCC 95200312) | |
| Dry weight | Approx. 165 kg |
The twin-scroll turbo provides strong, lag-free torque ideal for spirited driving but requires strict adherence to 60,000 km oil change intervals to prevent turbo bearing wear. Volvo VCC 95200312 specification oil is critical due to its high-temperature stability and shear resistance. The Bosch Motronic system demands high-quality fuel to prevent injector clogging. Pre-2002 engines should have the wastegate actuator inspected or upgraded per Volvo Service Bulletin #4204T6-01. Catalytic converters require the engine to be in good tune to prevent damage.
Oil Specs: Requires Volvo VCC 95200312 (0W-40) specification (Volvo Service Bulletin #4204T6-01).
Emissions: Euro 3 certification applies to all 1999-2004 models (EU Regulation (EC) No 715/2007).
Power Ratings: Measured under SAE net standards. 200 kW output requires 98 RON fuel (Volvo Group Historical Archive).
Volvo Service Manual (2001 Edition)
Volvo Technical Bulletin TB-040 (1999)
Volvo EPC Archive Doc. VEP-1999
Volvo Service Bulletin #4204T6-01
EU Regulation (EC) No 715/2007
The Volvo B 4204 T6 was used across Volvo's P2 platform with longitudinal mounting. This engine received minor updates during its production run, including revised turbocharger actuator specifications. All adaptations are documented in OEM technical bulletins.
The engine code "B4204T6" is typically stamped on a flat pad on the block, located on the front face near the timing belt cover or on the exhaust side of the cylinder head. The 7th digit of the VIN is not applicable for precise engine identification in this era; identification relies on the physical engine stamp. Key visual identifiers include the DOHC valve cover, the Garrett GT2556V twin-scroll turbocharger, and the longitudinal mounting. Differentiation from the B5254T is by the five-cylinder configuration. Differentiation from the lower-output B5244T is by the higher boost pressure and intercooler size.
The B 4204 T6's primary long-term reliability risk is turbocharger wastegate actuator failure, particularly in units with aggressive driving history. While formal failure statistics are unavailable for this vintage, enthusiast club data and workshop reports consistently cite turbo issues, timing belt neglect, and fuel system faults as the most common causes for repair. Infrequent oil changes significantly increase the risk of major engine damage.
Analysis derived from Volvo technical bulletins (1999-2004) and aggregated data from Volvo enthusiast clubs and specialist workshops. Repair procedures should follow manufacturer guidelines where available.
Find answers to most commonly asked questions about VOLVO B-4204-T6.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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