The Volvo B4204T14 is a 1,984 cc, inline‑four turbocharged petrol engine produced between 1998 and 2000. It featured a dual overhead camshaft (DOHC) 16 — valve design with a cast iron block and aluminum head, delivering 142 kW (193 PS). Its advanced turbo system provided strong, linear power delivery for premium compact models.
Fitted to the high — performance S70 R and V70 R, the B4204T14 was engineered for drivers seeking a blend of luxury and spirited performance. Emissi…
Production years 1998–2000 meet Euro 2 standards (VCA UK Type Approval #VCA/VOL/8599).
The Volvo B4204T14 is a 1,984 cc inline‑four turbocharged petrol engine engineered for high-performance compact sedans and wagons (1998-2000). It combines a DOHC 16-valve head with a Mitsubishi TD04 turbocharger to deliver smooth, linear power delivery. Designed to meet Euro 2 emissions standards, it balances aggressive performance character with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,984 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 83.0 mm × 92.0 mm | |
Power output | 142 kW (193 PS) @ 5,700 rpm | |
Torque | 270 Nm @ 2,700 rpm | |
Fuel system | Bosch Motronic 4.4 | |
Emissions standard | Euro 2 | |
Compression ratio | 8.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Mitsubishi TD04 (0.60 A/R) | |
Timing system | Belt-driven | |
Oil type | SAE 10W-40 (semi-synthetic) | |
Dry weight | 160 kg |
The Volvo B4204T14 was used exclusively in Volvo's high-performance P80 platform with longitudinal mounting. This engine received no significant platform-specific adaptations during its short production run, as it was the top-tier engine for the limited-edition S70 R and V70 R models. All applications are documented in OEM technical bulletins.
The B4204T14's primary reliability risk is turbocharger wastegate actuator failure, with elevated incidence in engines subjected to aggressive driving. Volvo service documentation links this to heat cycling and mechanical wear, potentially leading to overboost and engine damage. Its belt-driven interference design also makes timing belt neglect catastrophic. Adherence to maintenance schedules is non-negotiable.
Analysis derived from Volvo technical bulletins (1998-2000) and owner club maintenance records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The B4204T14 can be reliable if meticulously maintained. Its main critical points are the turbocharger wastegate actuator and timing belt. With strict adherence to oil changes, cooldowns, and the 80,000 km timing belt interval, these engines can reach 250,000 km. Neglect, however, leads to expensive failures.
The most critical issue is turbocharger wastegate actuator failure leading to overboost. Other common problems include timing belt failure if not replaced on schedule, faults in the Bosch Motronic sensors or ignition coils, and coolant leaks from aging plastic components.
The B4204T14 was used exclusively in the high-performance Volvo S70 R (1998-2000) and V70 R (1998-2000) models. It was the most powerful engine available for the P80 platform during this period.
Yes, the B4204T14 is highly tunable. Common upgrades include a larger turbo (TD04-19T), rising-rate fuel pressure regulator, performance chip, and free-flow exhaust. These can reliably increase power to 220-240 PS. Internal modifications are recommended for power levels beyond 260 PS due to stock turbo and fuel system limits.
Fuel economy is moderate for a high-performance engine. Expect 13-15 L/100km (18-21 mpg UK) in city driving and 9-10 L/100km (28-31 mpg UK) on the highway. Aggressive driving will significantly increase consumption, while careful cruising can yield better figures.
Yes. The Volvo B4204T14 is an interference engine. If the timing belt breaks or jumps, the pistons will collide with the open valves, causing severe internal engine damage that requires a costly rebuild. This makes the 80,000 km/5-year timing belt replacement interval critical.
Volvo specified SAE 10W-40 semi-synthetic oil for the B4204T14. A high-quality full synthetic 5W-40 can also be used and may offer better high-temperature protection for the turbocharger. Oil changes must be performed every 10,000 km or 6 months, whichever comes first.
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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