Engine Code

VOLVO B-4204-T14 engine (1998–2000) – Specs, Problems & Compatibility Database

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. Emissions compliance was achieved through Bosch Motronic 4.4 fuel injection and catalytic converters, meeting Euro 2 standards.

One documented concern is premature failure of the turbocharger wastegate actuator, which can lead to overboost conditions and potential engine damage. This issue, highlighted in Volvo Service Bulletin 3-98125, is often linked to heat cycling and mechanical wear. In 2000, Volvo introduced the B4204T3 with revised turbo mapping and emissions controls.

Volvo Engine
Compliance Note:

Production years 1998–2000 meet Euro 2 standards (VCA UK Type Approval #VCA/VOL/8599).

B-4204-T14 Technical Specifications

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.

ParameterValueSource
Displacement1,984 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16‑valve
AspirationTurbocharged
Bore × stroke83.0 mm × 92.0 mm
Power output142 kW (193 PS) @ 5,700 rpm
Torque270 Nm @ 2,700 rpm
Fuel systemBosch Motronic 4.4
Emissions standardEuro 2
Compression ratio8.5:1
Cooling systemWater‑cooled
TurbochargerMitsubishi TD04 (0.60 A/R)
Timing systemBelt-driven
Oil typeSAE 10W-40 (semi-synthetic)
Dry weight160 kg
Practical Implications

The turbocharged design delivers strong, linear power ideal for spirited driving but requires a 30-60 second idle cooldown after aggressive use to prevent oil coking in the turbo bearings. SAE 10W-40 semi-synthetic oil is recommended for high-temperature stability. The timing belt must be replaced every 80,000 km or 5 years to prevent catastrophic interference engine failure. Bosch Motronic 4.4 system is robust but sensitive to sensor degradation. Turbocharger wastegate actuator failure is a documented issue per Volvo SIB 3-98125, leading to overboost conditions.

Data Verification Notes

Oil Specs: Requires SAE 10W-40 semi-synthetic specification (Volvo Greenbook 1999). Full synthetic 5W-40 may be used if compatible.

Emissions: Euro 2 certification applies to all production years (VCA Type Approval #VCA/VOL/8599).

Power Ratings: Measured under DIN 70020 standards. Output is specific to the S70 R and V70 R models (Volvo Greenbook 1999).

Primary Sources

Volvo Greenbook Service Manuals (1998-2000)

VCA Type Approval Database (VCA/VOL/8599)

DIN 70020 Engine Power Measurement Standard

B-4204-T14 Compatible Models

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.

Make:
Volvo
Years:
1998–2000
Models:
S70
Variants:
S70 R
View Source
Volvo Greenbook 1999
Make:
Volvo
Years:
1998–2000
Models:
V70
Variants:
V70 R
View Source
Volvo Greenbook 1999
Identification Guidance

Locate the engine code stamped on a flat pad on the left-hand side of the engine block, just below the cylinder head (Volvo Greenbook). The code will read 'B4204T14'. Critical differentiation from other B4204T variants: The 'T14' suffix denotes the specific 193 PS variant for the R models with unique ECU mapping and turbo configuration. Visually, the Mitsubishi TD04 turbocharger, red valve cover, and performance-oriented intercooler piping are definitive identifiers.

Identification Details

Evidence:

Volvo Greenbook Service Manuals

Location:

Stamped on left-hand side of block, below cylinder head (Volvo Greenbook). Code reads 'B4204T14'.

Visual Cues:

  • Mitsubishi TD04 turbocharger with specific wastegate actuator.
  • Red valve cover on all R models.
Compatibility Notes

E C U:

The Bosch Motronic 4.4 ECU for the B4204T14 has unique mapping for the 193 PS output and is not interchangeable with lower-output B4204T variants.

Evidence:

Volvo Greenbook Service Manuals

Exclusivity:

The B4204T14 was used only in the S70 R and V70 R, making it one of the rarest and most performance-focused engines in Volvo's P80 history.

Common Reliability Issues - VOLVO B-4204-T14

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.

Turbocharger wastegate actuator failure
Symptoms: Sudden loss of boost, check engine light with overboost code, potential engine knock or damage from excessive boost pressure.
Cause: Mechanical wear and heat cycling of the wastegate actuator diaphragm or linkage, leading to inability to control boost pressure.
Fix: Replace turbocharger wastegate actuator assembly. Adhere to strict 10,000 km oil change intervals and always allow 30-60 seconds of idle cooldown after hard driving.
Timing belt failure
Symptoms: Engine suddenly stops running, loud clattering noise if valves contact pistons, inability to restart.
Cause: Neglected timing belt replacement beyond 80,000 km or 5 years, leading to belt breakage in an interference engine.
Fix: Replace timing belt, tensioner, and idler pulleys as a complete kit. Inspect for valve/piston damage; engine rebuild may be necessary.
Motronic fuel system faults
Symptoms: Rough idle, hesitation, poor fuel economy, difficulty starting, erratic idle speed.
Cause: Degraded sensors (Air Mass Meter, Throttle Position Sensor, Coolant Temp Sensor) or failing ignition coils in the Bosch Motronic system.
Fix: Diagnose and replace faulty sensors or ignition coils per Volvo procedure. Clean throttle body and perform ECU adaptation reset.
Coolant leaks from plastic components
Symptoms: Coolant loss, visible leaks from thermostat housing, radiator end tanks, or heater core, engine overheating.
Cause: Age-related brittleness and cracking of plastic coolant pipes, thermostat housings, and radiator end tanks common in 1990s Volvos.
Fix: Replace all plastic coolant components with updated metal or high-temp plastic parts. Flush and refill cooling system with correct coolant.
Research Basis

Analysis derived from Volvo technical bulletins (1998-2000) and owner club maintenance records. Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about VOLVO B-4204-T14

Find answers to most commonly asked questions about VOLVO B-4204-T14.

Research Resources

Comprehensive technical documentation and regulatory references

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VOLVO Official Site

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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.

Official Documentation

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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

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialVOLVO documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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