BMW N63 engine report, 550i F10
BMW N63 · 550i (F10)
4.4 LPetrolV82010–2016
28/100
[avoid]
Skip the early cars, and budget for upkeep on the later N63TU
Worth buying, but only on the right car. A facelifted car (from July 2013, with the revised N63TU) with oil changes every 8,000 km (5,000 miles) on record and valve stem seals that aren't leaking. An early N63B44O0 car only well below market price, and only with proof that BMW's Customer Care Package work (index 11/12 injectors, timing chains, crankcase vent lines) has been done.
ExcellentGoodSolidRiskyAvoid
- Known issues
- 7
- Critical
- 0
- Sources
- 69
Verdict
Oil consumption and injector failures are both very common on the N63, so ask how much oil the car uses between services and whether the injectors have been replaced.
Timing chain stretch and guide wear are common too, and worth having inspected. The high-pressure fuel pump is a rare failure, but not a cheap one. Oil leaks, sensor faults and carbon on the intake valves turn up from time to time, and none of them is serious on its own.
Specs
- Displacement
- 4.4 L
- Layout
- V8
- Fuel
- Petrol
- Production
- 2008–present
- Chassis
- F10
- Fitted
- 2010–2016
Known issues
7 confirmed · sorted by severity
HighHigh-pressure fuel pump failure
HPFP wear or failure, sometimes shedding metal debris into the fuel system.
Symptoms
- Misfire
- Warning Light
- Hesitation
How often
Rare · Design weakness. Does not normally destroy the engine. Not safely drivable.
ModerateExcessive oil consumption
Worn valve stem seals, piston rings, or a clogged PCV/oil separator system causing oil consumption above manufacturer spec.
Symptoms
- Oil Consumption
- Smoke (White/Blue/Black)
How often
Very common · Design weakness. Does not normally destroy the engine. Still drivable.
ModerateTiming chain stretch / guide wear
Timing chain elongates or plastic guides wear prematurely, causing rattle, incorrect valve timing, or in severe cases chain failure.
Symptoms
- Knocking Noise
- Cold Start Rattle
- Warning Light
How often
Common · Design weakness. Can destroy the engine if ignored. Still drivable.
LowFuel injector failure
Injector wear, sticking, or seal failure causing misfires, rough running, or fuel leaks.
Symptoms
- Misfire
- Rough Idle
- Fuel Smell
How often
Very common · Design weakness. Does not normally destroy the engine. Still drivable.
Evidence
23 owner reports back this, confidence 50/100.
LowOil leak from seals or gaskets
Valve cover gasket, rear main seal, or front main seal degradation causing external oil leaks.
Symptoms
- Oil Consumption
How often
Rare · Design weakness. Does not normally destroy the engine. Still drivable.
LowEngine sensor failure
Crankshaft, camshaft, MAP, lambda/O2, or MAF sensor failure causing rough running, stalling, or incorrect fueling.
Symptoms
- Warning Light
- Rough Idle
- Misfire
How often
Rare · Age-related wear. Does not normally destroy the engine. Still drivable.
LowIntake valve carbon buildup
Direct-injection engines lack fuel washing the intake valves, leading to carbon buildup, misfires, and reduced power over time.
Symptoms
- Misfire
- Power Loss
- Rough Idle
How often
Rare · Design weakness. Does not normally destroy the engine. Still drivable.
- Critical
- High
- Moderate
- Low
Excessive oil consumptionfrom 90k km
Timing chain stretch / guide wearfrom 161k km
High-pressure fuel pump failurefrom 101k km
Fuel injector failurefrom 161k km
Oil leak from seals or gasketsfrom 89k km
Engine sensor failurefrom 100k km
Intake valve carbon buildupfrom 64k km
Buying checklist
BMW N63 (550i F10) · Buying checklist
Sources
Updated 15 Sept 2026 · scoring v2.7
Behind this report sit 69 owner posts, forum threads and official records. Nothing gets on the list on one person's word. It takes a recall, or owners on separate platforms describing the same fault. The score then sets how often a problem turns up against the damage it does.