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7 Series E65 / E66
E65 • 2001–2008 • Sedan
2
Engine Options
5
Known Issues
3
Critical Issues
45%
Reliability Score
Facelift (LCI) – 2005
- Completely revised front end (Bangle facelift)
- New headlights and grille design
- Updated iDrive system
- New N52/N62TU engines
45% – Poor
Engines
N62B48 – 4.8L V8 Petrol
750i, 750Li • 367 hp • 490 Nm
Displacement 4.8L
Layout V8
Fuel Petrol
Transmission 6-Speed Automatic (ZF 6HP)
Known Issues2 issues
critical
Valve Stem Seal Failure Very Common (>50%)
N62 valve stem seals harden, causing excessive oil consumption and blue smoke on start-up. A defining issue of this engine. Can consume 1L of oil per 1000 km.
Typical Mileage
80,000–150,000 km
Est. Repair Cost
€2,000–€5,000
DIY Friendly
✗ Specialist
Blue smoke on start-upHigh oil consumptionFouled spark plugs
high
Coolant Transfer Pipe Leak Common (>35%)
Hidden coolant pipe behind the intake manifold leaks, requiring significant disassembly to access and replace.
Typical Mileage
80,000–140,000 km
Est. Repair Cost
€800–€1,500
DIY Friendly
✗ Specialist
Coolant lossOverheatingSteam from under hood
N73B60 – 6.0L V12 Petrol
760i, 760Li • 445 hp • 600 Nm
Displacement 6.0L
Layout V12
Fuel Petrol
Transmission 6-Speed Automatic (ZF 6HP)
Known Issues1 issue
critical
Extreme Complexity & Reliability Issues Common (>40%)
The N73 direct-injection V12 is extremely complex with dual ECUs, individual coil-on-plug for 12 cylinders, and piezo injectors. Any repair is extraordinarily expensive.
Typical Mileage
60,000–120,000 km
Est. Repair Cost
€2,000–€10,000+
DIY Friendly
✗ Specialist
MisfiresLimp modeMassive repair bills
Common Issues (E65-specific)
Electrical 1
critical
Electronic Nightmares Common (>35%)
The E65 was BMW's most electronically complex car of its era. SZL (steering column switch), comfort access modules, seat modules, and CAS (Car Access System) failures are common.
Typical Mileage
80,000–150,000 km
Est. Repair Cost
€500–€3,000+
Category
Electrical
Random failuresWarning lightsNon-startingFeatures stop working
Body 1
medium
Soft-Close Door Mechanism Failure Common (>30%)
The soft-close door actuators fail, causing doors not to latch properly.
Typical Mileage
80,000–150,000 km
Est. Repair Cost
€300–€600 per door
Category
Body
Door not latchingMotor grindingDoor ajar warning
Wear Items
N62B48 – Wear Items
750i, 750Li
Valve Stem Seal Replacement
100,000–150,000 km
Replacement Cost€2,000–€5,000
Wear Factor70%
N73B60 – Wear Items
760i, 760Li
Spark Plugs (24 total)
Every 40,000 km
Replacement Cost€300–€600
Wear Factor65%