Engine Code

VOLVO B-5204-T2 engine (1994–1999) – Specs, Problems & Compatibility Database

The Volvo B 5204 T2 is a 1,984 cc, inline‑five turbocharged petrol engine produced between 1994 and 1999. It features an aluminium block and head, double overhead camshafts (DOHC), and multi-point fuel injection. In standard form, it delivered 147 kW (200 PS) and 270 Nm of torque, providing a blend of smooth power delivery and strong performance characteristic of Volvo's five-cylinder engines.

Fitted to models such as the 850 and S70 during this period, the B 5204 T2 was engineered for refined, sporty performance suitable for premium mid-size sedans and wagons. Emissions compliance was met through precise fuel injection and catalytic aftertreatment, allowing compliance with Euro 2 standards.

One documented reliability concern is premature failure of the turbocharger oil return line, which can lead to oil leaks and potential turbo damage. This issue, highlighted in Volvo Service Bulletin SB‑96‑08, is often linked to heat degradation of the rubber hose section. In 1997, Volvo introduced a revised oil return line with improved heat shielding.

Volvo Engine
Compliance Note:

Production years 1994–1999 meet Euro 2 standards (VCA UK Type Approval #VCA/VOL/B5204T2).

B-5204-T2 Technical Specifications

The Volvo B 5204 T2 is a 1,984 cc inline‑five turbocharged petrol engine engineered for premium mid-size models (1994-1999). It combines an aluminium block with DOHC and multi-point injection to deliver smooth, responsive performance. Designed to meet Euro 2 emissions standards, it balances the unique character of Volvo's five-cylinder layout with regulatory compliance.

ParameterValueSource
Displacement1,984 cc
Fuel typePetrol
ConfigurationInline‑5, DOHC, 20‑valve
AspirationTurbocharged
Bore × stroke81.0 mm × 77.0 mm
Power output147 kW (200 PS) @ 5,300 rpm
Torque270 Nm @ 2,100 rpm
Fuel systemMulti-point fuel injection (Bosch Motronic 4.4)
Emissions standardEuro 2
Compression ratio8.5:1
Cooling systemWater‑cooled
TurbochargerSingle turbocharger (Garrett T25)
Timing systemBelt-driven camshafts
Oil typeSAE 10W-40 (Volvo VCC 95200378)
Dry weight165 kg
Practical Implications

The inline-five turbocharged design provides a unique smooth-yet-urgent power delivery ideal for highway overtaking but requires strict adherence to 15,000 km oil change intervals to prevent turbo degradation. Volvo VCC 95200378 (10W-40) oil is critical due to its specific formulation protecting the turbo bearings. Extended idling should be minimized to reduce turbo heat soak. The timing belt must be replaced per Volvo’s 5-year/100,000 km schedule. Ignoring SB-96-08 for oil return line replacement can lead to turbo failure.

Data Verification Notes

Oil Specs: Requires Volvo VCC 95200378 (10W-40) specification (Volvo Workshop Manual 1997). Supersedes ACEA A3/B3 requirements.

Emissions: Euro 2 certification applies to all 1994–1999 models (VCA Type Approval #VCA/VOL/B5204T2).

Power Ratings: Measured under DIN 70020 standards. Figures represent engine output as installed in vehicle (Volvo Factory Brochure 1996).

Primary Sources

Volvo Workshop Manual (1997 Edition)

Volvo Technical Specification Sheet B5204

Volvo Service Bulletin SB-96-08

VCA Type Approval Database (VCA/VOL/B5204T2)

B-5204-T2 Compatible Models

The Volvo B 5204 T2 was used across Volvo's P80 platform with transverse mounting. This engine received platform-specific adaptations-minor variations in turbo routing and engine mounts between sedan and wagon body styles. All adaptations are documented in OEM technical bulletins.

Make:
Volvo
Years:
1994–1996
Models:
850
Variants:
T-5, R
View Source
Volvo EPC Archive Doc. VEP-1995
Make:
Volvo
Years:
1997–1999
Models:
S70
Variants:
T-5
View Source
Volvo S70 Production Records
Make:
Volvo
Years:
1997–1999
Models:
V70
Variants:
T-5
View Source
Volvo V70 Production Records
Identification Guidance

Locate the engine code stamped on the front of the engine block, near the timing cover (Volvo Workshop Manual 1997). The code will read "B5204T2". Visual identification: Aluminium block, multi-point fuel injectors on the intake manifold, turbocharger mounted at the front of the engine. Critical differentiation from the B5234T3: The B5204 has a 2.0L displacement (vs. 2.3L) and different bore/stroke dimensions. The "T2" suffix denotes the specific turbocharged variant with 200 PS output.

Identification Details

Evidence:

Volvo Workshop Manual 1997

Location:

Stamped on the front of the engine block, near the timing cover (Volvo Workshop Manual 1997).

Visual Cues:

  • Aluminium block, multi-point fuel injectors visible on intake manifold.
  • Turbocharger mounted at front of engine with visible intercooler piping.
Compatibility Notes

Mounts:

Engine mounts for the 850 and S70 have different part numbers due to chassis variations.

Evidence:

Volvo EPC Archive Doc. VEP-1995

Timing Belt:

Timing belt kits are specific to the B5204 engine and not interchangeable with other B5-series engines.
Turbo Oil Return Line

Issue:

The B5204T2 is susceptible to premature failure of the turbocharger oil return line, leading to oil leaks and potential turbo damage.

Evidence:

Volvo Service Bulletin SB-96-08

Recommendation:

Replace the oil return line with the updated OEM part (P/N 9141911) per Volvo SB-96-08 if symptoms occur or as preventative maintenance.

Common Reliability Issues - VOLVO B-5204-T2

The B 5204 T2's primary reliability risk is turbocharger oil return line failure, with elevated incidence in high-mileage or heat-stressed examples. Volvo internal service data from 1996 indicated frequent need for line replacement, while owner surveys highlight timing belt tensioner wear as a common cause of noise complaints. Infrequent oil changes and use of incorrect oil make turbo and timing system issues critical.

Turbocharger oil return line failure
Symptoms: Oil leaks from the turbocharger area, blue smoke from exhaust, potential turbo bearing failure.
Cause: Heat degradation of the rubber section of the oil return line, leading to cracking and leakage.
Fix: Replace oil return line with updated OEM part (P/N 9141911) per Volvo SB-96-08; inspect turbo for bearing damage if leakage was severe.
Timing belt tensioner wear
Symptoms: Whining or chirping noise from front of engine, especially on cold start; potential for belt slippage.
Cause: Material fatigue in the hydraulic tensioner bearing under normal operation, leading to loss of tension.
Fix: Replace tensioner and timing belt as a set per Volvo maintenance schedule; inspect idler pulleys for wear.
Coolant leaks from thermostat housing
Symptoms: Coolant smell, drips under engine, low coolant level, overheating.
Cause: Age-hardened O-ring seal in the plastic thermostat housing, leading to coolant seepage.
Fix: Replace thermostat housing and O-ring with OEM parts; ensure correct torque on all fasteners.
Oil leaks from camshaft seals and valve cover
Symptoms: Oil smell, drips under engine, residue around valve cover and camshaft pulleys.
Cause: Age-hardened camshaft seals and valve cover gasket.
Fix: Replace camshaft seals and valve cover gasket with OEM parts; ensure correct torque on all fasteners.
Research Basis

Analysis derived from Volvo technical bulletins (1994-1999) and Volvo Owners Club failure surveys (2000-2010). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about VOLVO B-5204-T2

Find answers to most commonly asked questions about VOLVO B-5204-T2.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

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