S68 vs N52
Side-by-side reliability comparison
Higher reliability score
N52
BEST
90/100
+15 points over S68
0
/ 100
ACCEPTABLE
S68
BMW
0
/ 100
BEST
N52
BMW
Specifications
S68
N52
Brand
BMW
BMW
Verdict
ACCEPTABLE
BEST
Reliability
75
90
Years
2023--present
2004--2015
Displacement
4395 cc
2996 cc
Layout
V8
I6
Type
Petrol Turbo
Petrol Na
Power
585--727 hp
190--272 hp
Known Issues
1
3
Total Risk Cost
€0--€0
€250--€900
Character
S68
"Latest M V8. XM/M5 G70. Cross-plane crank, 48V mild hybrid on some variants. Too new for long-term data but BMW learned from N63/S63 mistakes. Front-accessible turbos. Early data positive."
N52
"Last great NA six. Lighter (magnesium block), smoother, higher-revving than M54. 250k+ km."
Issues Comparison
S68 1
○ MINOR
Too new for long-term data
N52 3
● MODERATE
Coolant expansion tank / hose failure
● MODERATE
VANOS solenoid / oil feed failure
○ MINOR
Hydraulic lifter tick on cold start