"Is the 5 Serisi 518d reliable, and what should you check?"
When buying a used BMW 5 Series 518d 2017 (F07 / F10 / F10M / F11 / LCI), the most frequently mentioned issue is timing chain slack at high mileage. DPF clogging is also commonly reported.
Engine: B47
B47D20A · 518d · Used in this car from 2015-2017
Known engine issues
EGR valveMost problems of this engine are related to the EGR system, called AGR here. In early years, the valve could clog at 30,000 km and a recall campaign was even conducted. When it sticks open, overheating causes the intake manifold to crack.
Intake cloggingThe second most frequent service issue is clogging of the intake manifold and ports in the cylinder head, leading to loss of power and unstable engine operation. In severe cases, the intake swirl flaps may stick and break off.
Timing chain stretchThe chain timing drive on B-series engines differs little from N-series predecessors and may require attention before 200,000 km under very active use. There is already a cost-effective procedure to replace these chains without removing the engine.
+1 more issues on the engine detail page
Known issues and risks
Listed from most frequently reported, each with its source.
Timing chain slack at high mileage
Often reported
The B47 engine has an improved design over previous series, but cases of timing chain slack or wear are reported on very high-mileage or poorly maintained vehicles.
Timing chain
DPF clogging
Often reported
The diesel particulate filter (DPF) clogs relatively easily in diesel engines used for city driving or short trips; this prevents regeneration, leading to system warnings, power loss, and in advanced cases, failure.
Exhaust Emissions
EGR clogging and failure
Often reported
The EGR valve and cooler can become clogged with soot and carbon deposits, causing rough running, power loss, and engine warning lights.
Exhaust Emissions
Turbocharger wear due to poor maintenance
Often reported
When oil service is irregular or incorrect oil is used, the turbocharger can wear prematurely, leading to performance loss, abnormal noises, and in worst cases, oil leaks and exhaust smoke.
Turbo
BMW 5 Serisi 518d technical specs
BMW 5 Serisi 518d (2017): boot 560 L; fuel use 5 l/100 km (urban 5,9 l/100 km · extra-urban 4,5 l/100 km); 0–100 in 9.9 s.
Boot capacity
560 L
Fuel consumption
5 l/100 km (urban 5,9 l/100 km · extra-urban 4,5 l/100 km)
What to look for when buying a BMW 5 Series 518d?+
When buying a 2017 518d, check the service history, perform a test drive, and inspect engine/transmission warnings. The most commonly reported issues are: timing chain slack at high mileage; DPF clogging; EGR clogging and failure.
What are the common problems of BMW 5 Series 518d?+
The most frequently reported issues are: timing chain slack at high mileage; DPF clogging; EGR clogging and failure.
Is the BMW 5 Series 518d reliable?+
Rather than a simple yes or no, it's better 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; compatibility in brand, fuel, engine, and generation between the source vehicle and target vehicle is verified. Topics with insufficient evidence are not shown.