"Is the 5 Serisi 550i reliable, and what should you check?"
The most frequently mentioned issue when buying a used BMW 5 Series 550i 2010 (F07 / F10 / F10M / F11): Excessive oil consumption. Injectors, misfires, and carbon buildup are also commonly reported.
Engine: N62
N62B48B · 550i · Used in this car from 2008-2010
Strengths
Provides good dynamics
Widely available in our market
Watch-outs
Fuel consumption is rather high
Very picky about oil quality
Suffers from oil and coolant leaks
Known engine issues
ScoringCatalytic converters do not tolerate poor fuel and can fail before 100,000 km, then their debris enters the combustion chambers and causes scoring on cylinder walls. This problem was especially common on early engines, slightly less on N62TU.
Oil consumptionOriginally this engine had a thermostat that only opens at 105°C, which greatly reduces the life of valve stem seals, leading to oil consumption. Another common cause is wear of the crankcase ventilation membranes.
Vanos and ValvetronicThe timing chain is quite reliable and easily lasts 250,000 km or more, but the Double Vanos and Valvetronic systems have much lower service life. Therefore, it is very important for the owner to monitor oil quality and change intervals.
Listed from most frequently reported, each with its source.
Excessive oil consumption
Often reported
Abnormal oil consumption is widely reported for the N63 engine (4.4 V8 turbo) in the 550i, requiring frequent oil top-ups.
Engine Internal
Injectors, misfires, and carbon buildup
Often reported
Due to direct injection and N63 characteristics, injector clogging/failure and ignition issues lead to misfires, power loss, and rough running. Direct injection also causes carbon buildup on intake valves.
Fuel System
High-pressure fuel pump (HPFP) failures
Often reported
The high-pressure fuel pump in the N63 engine is critical; failures can cause rail pressure loss, hard starting, stalling, and limp mode.
Fuel System
Turbo and gasket failures
Often reported
The N63 engine's turbochargers and gaskets can develop issues: oil leaks into intake or exhaust, degraded gaskets/seals, and wear on turbine components, causing exhaust smoke, power loss, or abnormal noises.
Turbo
BMW 5 Serisi 550i technical specs
BMW 5 Serisi 550i (2010): boot 500 L; fuel use 11,2 l/100 km (urban 17 l/100 km · extra-urban 7,8 l/100 km); 0–100 in 5.3 s.
Boot capacity
500 L
Fuel consumption
11,2 l/100 km (urban 17 l/100 km · extra-urban 7,8 l/100 km)
What should I look for when buying a BMW 5 Series 550i?+
When buying a 2010 550i, check the service history, test drive, and look for engine/transmission warnings. Most commonly reported issues: Excessive oil consumption; Injectors, misfires, and carbon buildup; High-pressure fuel pump (HPFP) failures.
What are the chronic problems of the BMW 5 Series 550i?+
Most commonly reported issues: Excessive oil consumption; Injectors, misfires, and carbon buildup; High-pressure fuel pump (HPFP) failures.
Is the BMW 5 Series 550i reliable?+
Rather than a simple yes/no, it's best to weigh the proven pros and cons together. This page lists 4 verified findings.
How does Carbeak collect data?+
The cards on this page are derived from the Difetti fault database; the source vehicle is verified to match the target vehicle in brand, fuel type, engine, and generation. Topics with insufficient evidence are not shown.