B6304T vs B5254T
Side-by-side reliability comparison
Higher reliability score
B5254T
ACCEPTABLE
75/100
+5 points over B6304T
0
/ 100
ACCEPTABLE
B6304T
Volvo
0
/ 100
ACCEPTABLE
B5254T
Volvo
Specifications
B6304T
B5254T
Brand
Volvo
Volvo
Verdict
ACCEPTABLE
ACCEPTABLE
Reliability
70
75
Years
2010--2016
2003--2016
Displacement
2953 cc
2521 cc
Layout
I6
I5
Type
Petrol Turbo
Petrol Turbo
Power
286--350 hp
230--300 hp
Known Issues
1
4
Total Risk Cost
€400--€800
€1,400--€2,900
Character
B6304T
"S60/V60/XC90 T6 (later). Twin-scroll turbo. More refined than B6294T. Timing belt. PCV. Same concerns but slightly improved. Polestar version 350hp."
B5254T
"Classic Volvo turbo five. S60/V70/XC90. PCV system needs attention. Smooth, punchy. Good with care."
Issues Comparison
B6304T 1
▲ HIGH
Timing belt
B5254T 4
▲ HIGH
Timing belt + tensioner replacement
▲ HIGH
PCV (crankcase ventilation) system clogging
● MODERATE
Throttle body failure / sticking
○ MINOR
Turbo oil seal wear