N62 vs B58
Side-by-side reliability comparison
Higher reliability score
B58
BEST
93/100
+55 points over N62
0
/ 100
AVOID
N62
BMW
0
/ 100
BEST
B58
BMW
Specifications
N62
B58
Brand
BMW
BMW
Verdict
AVOID
BEST
Reliability
38
93
Years
2001--2010
2015--present
Displacement
4799 cc
2998 cc
Layout
V8
I6
Type
Petrol Na
Petrol Turbo
Power
325--367 hp
326--387 hp
Known Issues
2
3
Total Risk Cost
€4,000--€14,000
€430--€1,000
Character
N62
"Valve stem seal failure (30%+ by 160k km). Coolant transfer pipe leak = 40+ hours labour. Timing chain guide brittleness. Over-engineered with too many failure points. Beautiful power, terrible ownership."
B58
"Possibly BMWs best engine ever. Forged internals, insane tuning (600hp+). 300k+ km."
Issues Comparison
N62 2
◆ CRITICAL
Coolant transfer pipe seal leak
◆ CRITICAL
Valve stem seal failure
B58 3
● MODERATE
Coolant expansion tank / line failure — early units
○ MINOR
Plastic charge pipe crack
○ MINOR
Valve cover gasket oil leak