N63 vs B58

Side-by-side reliability comparison

Higher reliability score
B58 BEST 93/100
+51 points over N63
0 / 100
AVOID N63 BMW
0 / 100
BEST B58 BMW

Specifications

N63
B58
Brand
BMW
BMW
Verdict
AVOID
BEST
Reliability
42
93
Years
2008--present
2015--present
Displacement
4395 cc
2998 cc
Layout
V8
I6
Type
Petrol Turbo
Petrol Turbo
Power
408--625 hp
326--387 hp
Known Issues
2
3
Total Risk Cost
€2,500--€7,000
€430--€1,000

Character

N63

"Hot-V design cooks turbos and injectors between cylinder banks. Oil consumption, coolant leaks, injector failure. N63TU (2012+) improved but still problematic. Called 'hot vee from hell' by BMW techs."

B58

"Possibly BMWs best engine ever. Forged internals, insane tuning (600hp+). 300k+ km."

Issues Comparison

N63 2

◆ CRITICAL
Injector failure (hot-V design) €2,000--€5,000 60,000 km--120,000 km
▲ HIGH
Excessive oil consumption €500--€2,000 40,000 km--100,000 km

B58 3

● MODERATE
Coolant expansion tank / line failure — early units €150--€350 60,000 km--120,000 km
○ MINOR
Plastic charge pipe crack €80--€200 60,000 km--150,000 km
○ MINOR
Valve cover gasket oil leak €200--€450 80,000 km--160,000 km

Models

N63 8

6 Series F13 2011--2018 X5 E70 2010--2013 8 Series G15 2018--present 5 Series G30 2017--2023 7 Series G11 2019--2022 7 Series F01 2012--2015 5 Series F10 2010--2017 X5 F15 2013--2018

B58 26

6 Series F13 2015--2018 6 Series G32 2017--2023 1 Series F20 2015--2016 3 Series F30 2015--2019 1 Series F20 2016--2019 5 Series F10 2016--2017 4 Series F32 2016--2020 2 Series F22 2016--2021 7 Series G11 2016--2022 GR Supra A90 2019--present X5 G05 2020--present 3 Series G20 2019--present X4 G02 2018--present X5 G05 2018--present X6 G06 2019--present X7 G07 2019--present GR Supra A90 2022--present 5 Series G30 2017--2023 8 Series G15 2018--present 2 Series G42 2022--present 4 Series G22 2020--present X3 G01 2017--2024 Z4 G29 2019--present 7 Series G70 2023--present 5 Series G60 2024--present 340i F30 LCI 2015--2019 Sedan
Full N63 Report Full B58 Report