BMW 5 Series E60 520d N47 2.0d 177bhp Known Faults
The E60 520d carries the same rear-mounted N47 timing chain as the 3 Series. Chain failure is catastrophic and expensive.
What To Check Before Buying
- ✓Check service history — was oil changed regularly?
- ✓Look for blue/black smoke on startup and under load
- ✓Listen for rattles, knocking, or turbo whine
- ✓Test all electrics including windows, AC, and central locking
- ✓Check for DPF warning light or recent regenerations
- ✓Inspect for rust underneath and around wheel arches
- ✓Request a pre-purchase inspection by an independent mechanic
Known Faults
N47 Rear Timing Chain Failure
CriticalThe E60 5 Series with the N47 diesel engine carries the same catastrophic rear-mounted timing chain risk as the E90 3 Series. Engine removal is required for repair — making this one of the most expensive known faults in the BMW range.
Swirl Flap Failure and Engine Ingestion
CriticalThe N47 in the E60 5 Series shares the swirl flap failure risk of all N47-engined BMWs. The flap breaks off the corroded actuator rod and is ingested into the engine.
Turbocharger Failure
SevereTurbo failure on the E60 520d N47 is common from 100,000 miles. The 5 Series tends to be driven harder than the 3 Series, increasing turbo stress.
EGR Failure and Coolant Loss
ModerateEGR cooler failure on the E60 520d N47 causes internal coolant leaks into the intake manifold. Combined with EGR valve carbonising, both components typically need replacing together.
Cooling System Thermostat Housing Failure
ModerateThe plastic thermostat housing on the N47 is notorious for cracking and causing coolant loss. BMW used plastic for this component in a bid to save weight — it fails prematurely.
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