Volvo B5252S engine
Engines

Volvo B5252S engine

Technical characteristics of the 2.5-liter Volvo B5252S gasoline engine, reliability, resource, reviews, problems and fuel consumption.

Volvo's 2.5-liter 10-valve B5252S engine was assembled in Sweden from 1994 to 1999 and was installed on many popular models of the company of its time, such as the 850, S70 or V70. There was a version of this engine with a B5252FS catalyst and a gas modification GB5252S.

Modular engine series: B5202S, B5244S, B5244S2, B5244S4 and B5254S.

Technical characteristics of the Volvo B5252S 2.5 liter engine

Exact volume2435 cm³
Supply systeminjector
Internal combustion engine power144 hp
Torque206 Nm
Cylinder blockaluminum R5
Block headaluminum 10v
Bore83 mm
Piston stroke90 mm
Compression ratio10
Features of the internal combustion engineDOHC
Hydraulic compensatorsYes
Timing drivebelt
Phase regulatorno
Turbochargingno
What kind of oil to pour5.3 liters 5W-40
fuel typeAI-92
Environmental classEURO 2
Approximate resource400 000 km

The weight of the B5252S engine according to the catalog is 170 kg

Engine number B5252S is located at the junction of the block with the head

Fuel consumption Volvo B5252S

Using the example of a 70 Volvo S1998 with a manual transmission:

City14.2 liters
Track8.0 liters
Mixed9.9 liters

Which cars were equipped with the B5252S 2.5 l engine

Volvo
8501994 – 1996
S70 I (874)1996 – 1999
V70 I (875)1996 – 1999
  

Disadvantages, breakdowns and problems of the internal combustion engine B5252S

This unit does not have a phase regulator and an electronic choke and is therefore reliable

The most famous problem is the oil burner due to clogged crankcase ventilation.

It is important to monitor the condition of the timing belt, since when a valve breaks, it usually bends

Quite often, the rear crankshaft oil seal and the oil pump gasket are leaking here.

The engine mounts, water pump and fuel pump also have a modest resource here.


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