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B5254T7
Engine overview
Production years
2008-2013
Vehicles with this engine
544/545
533
542
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
Engine code
B 5254 T7
Capacity
2521 cc
Idle speed
770 rpm
Inlet
0.20 ± 0.03 mm
Exhaust
0.40 ± 0.03 mm
Oil pressure
1.0 / 810 3.5 / 4000 bar/rpm
Engine (petrol)
Fuel system (make and type)
Bosch Motronic ME 9
Number of cylinders
5
Firing order
1 - 2 - 4 - 5 - 3
Spark plugs (make and type)
Volvo 30 65 03 79
Spark plug gap
0.7 mm
Injection pressure/system pressure
3.8 bar
Lambda
0.97 – 1.03
CO at fast-idle speed
< 0.3 %
Cooling system
Cap pressure
1.45 bar
Thermostat opens at
90 °C
Thermostat fully open at
105 °C
Electrical
Battery
60 / 65 / 80 Ah
Alternator
150 / 160 A
Brakes
Disc thickness, front
25.0 mm
Disc thickness, front, min.
23.0 mm
Disc thickness, rear
11.0 mm
Disc thickness, rear, min.
9.0 mm
Brake pad thickness, front
12.0 mm
Brake pad thickness, front, min.
3.0 mm
Brake pad thickness, rear
10.0 mm
Brake pad thickness, rear, min.
3.0 mm
Steering and wheel alignment
Toe-in, front
0° 12' ± 06' °
Camber, front
-0° 45' ± 42' °
Castor, front
3° 48' ± 1° 30' °
Max. difference left side - right side
1° °
Toe-in, rear
0° 12' ± 06' °
Camber, rear
-1° 43' 12" ± 1° °
Wheels and tyres
Tyre size
215/5 R16 91W
Front tyre pressure
2.1 - 2.5 bar
Rear tyre pressure
2.1 - 2.5 bar
Front tyre pressure
2.6 - 2.8 bar
Rear tyre pressure
2.1 - 2.6 bar
Tyre size
215/50 R17 91W
Tyre size
235/45 R17 94W
Tyre size
235/40 R18 91Y
Front tyre pressure
2.2 - 2.5 bar
Rear tyre pressure
2.2 - 2.5 bar
Front tyre pressure
2.7 - 2.9 bar
Rear tyre pressure
2.2 - 2.7 bar
Spare tyre size
T125/85 R16
Spare tyre pressure
4.2 bar
Capacities
Engine sump, incl. filter
5.5 l
Manual transmission
M66W M66W AWD
Gearbox refill
2.0 l
Automatic transmission
AW55-51 AW50-51AWD
Initial filling
7.75 l
Gearbox refill
3.0 l
Differential, 4WD rear
0.7 l
Cooling system
8.0 l
Cooling system
8.5 l
Air-conditioner refrigerant
535 g
Air-conditioner compressor oil
200 ml
Torque settings
Cylinder head bolts — Stage 1
20 Nm
Cylinder head bolts — Stage 2
60 Nm
Cylinder head bolts — Stage 3
130 °
Spark plugs
28 Nm
Knock sensor
20 Nm
Oxygen sensor
45 Nm
Oil plug
38 Nm
Oil filter
35 Nm
Big-end bearing cap — Stage 1
15 Nm
Big-end bearing cap — Stage 2
25 Nm
Big-end bearing cap — Stage 3
100 °
Crankshaft gearwheel
180 Nm
Manual transmission drain plug
35 Nm
Manual transmission filler plug
35 Nm
Automatic transmission drain plug
40 Nm
Wheel bolts — Stage 1
20 Nm
Wheel bolts — Stage 2
90 Nm
Front hub — Stage 1
35 Nm
Front hub — Stage 2
90 °
Rear hub
50 Nm
Emissions
Emission code
70/220*2003/76B
Emission standard
Euro 4 (06/2008 ->)
CO2 average
217 g/km
CO
0.121 g/km
HC
0.029 g/km
NOx
0.017 g/km
Emission code
715/2007*692/2008F
Emission standard
Euro 5 (04/2009 ->)
CO2 average
209 g/km
CO
0.245 g/km
HC
0.032 g/km
NOx
0.025 g/km
Emission standard
Euro 4
CO2 average
234 g/km
CO
0.142 g/km
HC
0.031 g/km
NOx
0.008 g/km
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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Who makes these pages, and how TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
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The story behind TorqFix → Workshop data on this page last updated 22 Aug 2026.
