N63TU (N63B44O1/O2/T3) vs B58

Side-by-side reliability comparison

Higher reliability score
B58 BEST 89/100
+27 points over N63TU (N63B44O1/O2/T3)
0 / 100
CAUTION N63TU (N63B44O1/O2/T3) BMW
0 / 100
BEST B58 BMW

Specifications

N63TU (N63B44O1/O2/T3)
B58
Brand
BMW
BMW
Verdict
CAUTION
BEST
Reliability
62
89
Years
2012--present
2015--present
Displacement
4395 cc
2998 cc
Layout
V8
I6
Type
Petrol Turbo
Petrol Turbo
Power
449--530 hp
326--387 hp
Known Issues
5
7
Total Risk Cost
€3,280--€5,180
€2,100--€8,050

Character

N63TU (N63B44O1/O2/T3)

"The updated hot-V V8 (from 2012-2013) with Valvetronic, forged internals, new valve stem seals and a second coolant pump: 550i F10 from July 2013, 750i, 650i, X5/X6 50i, then M550i, 750i G11, M850i and X5/X7 M50i. Clearly better than the original N63, but it still burns oil (its own US settlement) and chains and injectors are not immune. Budget accordingly."

B58

"Arguably BMW's best modern petrol: a smooth, strong 3.0 turbo six from the 340i to the Toyota Supra, with no engine-destroying pattern fault. What does go wrong is bolt-on: coolant loss (expansion tank, water pump), the PCV diaphragm in the valve cover (oil smoke) and, on 2018-2022 engines, a plastic part in the oil pump. Forged crankshaft, closed-deck block; strong tuning base."

Issues Comparison

N63TU (N63B44O1/O2/T3) 5

▲ HIGH
Oil consumption - valve stem seals (US class-action settlement) €2,800--€4,500 N/A--N/A
▲ HIGH
Timing chain and tensioner wear N/A--N/A N/A--N/A
● MODERATE
Injector failure N/A--N/A N/A--N/A
● MODERATE
Brake vacuum pump leak €480--€680 N/A--N/A
○ MINOR
Coolant leaks N/A--N/A N/A--N/A

B58 7

▲ HIGH
Oil pump plastic ring cracks — oil pressure loss (2018-2022 engines) €1,100--€5,500 48,000 km--N/A
● MODERATE
Coolant loss — expansion tank or cap, electric water pump, low-temperature circuit N/A--N/A 97,000 km--161,000 km
● MODERATE
PCV diaphragm in the valve cover and valve cover gasket — oil smoke, oil leaks €920--€2,350 113,000 km--161,000 km
○ MINOR
VANOS solenoid wear N/A--N/A 100,000 km--161,000 km
○ MINOR
Oil filter shears off in its housing N/A--N/A N/A--N/A
○ MINOR
Crankshaft guide bearing wear — early manual F30 340i (service action) €0--N/A N/A--N/A
○ MINOR
Plastic charge pipe crack €80--€200 60,000 km--150,000 km

Models

N63TU (N63B44O1/O2/T3) 7

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

B58 26

1 Series F20 2016--2019 6 Series G32 2017--2023 4 Series F32 2016--2020 6 Series F13 2015--2018 7 Series G11 2016--2022 3 Series F30 2015--2019 GR Supra A90 2019--present 1 Series F20 2015--2016 2 Series F22 2016--2021 5 Series F10 2016--2017 X5 G05 2020--present Z4 G29 2019--present X4 G02 2018--present X7 G07 2019--present 8 Series G15 2018--present GR Supra A90 2022--present 3 Series G20 2019--present 5 Series G30 2017--2023 X5 G05 2018--present X6 G06 2019--present X3 G01 2017--2024 2 Series G42 2022--present 4 Series G22 2020--present 5 Series G60 2024--present 7 Series G70 2023--present 340i F30 LCI 2015--2019 Sedan
Full N63TU (N63B44O1/O2/T3) Report Full B58 Report