S58 vs B58
Side-by-side reliability comparison
Higher reliability score
B58
BEST
93/100
+28 points over S58
0
/ 100
CAUTION
S58
BMW
0
/ 100
BEST
B58
BMW
Specifications
S58
B58
Brand
BMW
BMW
Verdict
CAUTION
BEST
Reliability
65
93
Years
2019--present
2015--present
Displacement
2993 cc
2998 cc
Layout
I6
I6
Type
Petrol Turbo
Petrol Turbo
Power
473--530 hp
326--387 hp
Known Issues
3
3
Total Risk Cost
€1,800--€8,800
€430--€1,000
Character
S58
"Brute force 500+ hp. M-car care mandatory. Youngest M engine — early data."
B58
"Possibly BMWs best engine ever. Forged internals, insane tuning (600hp+). 300k+ km."
Issues Comparison
S58 3
◆ CRITICAL
Oil filter disintegration — early units (2020-2021)
▲ HIGH
Rod bearing wear under high use
○ MINOR
Intake carbon buildup (DI)
B58 3
● MODERATE
Coolant expansion tank / line failure — early units
○ MINOR
Plastic charge pipe crack
○ MINOR
Valve cover gasket oil leak