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BMW E71 X6 and X6 M common problems

2008–2014 · xDrive35i, xDrive35i / sDrive35i, xDrive50i, ActiveHybrid X6, X6 M (N54, N55, N63 V8, N63, S63 V8). The known weak spots of the engines used in the E71, with sources, plus the topics that come up most in BMW's service bulletins and NHTSA recalls for this chassis.

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N54 engine

xDrive35i (2008–2010) · N54 bulletins →

High-pressure fuel pump (HPFP)

Early N54 pumps failed often enough that BMW extended the emissions warranty on the pump to 10 years/120,000 miles for 2007–2010 N54 cars. Symptoms are long cranking, stumbling and reduced power.

BMW bulletins on file for the E71:

Sources: BimmerFile: BMW NA extends N54 fuel pump warranty

Turbocharger wastegate rattle

BMW extended the emissions warranty on N54 turbo wastegates to 8 years/82,000 miles (SI B01 02 12). A loud rattle on decel or at light throttle is the typical complaint.

BMW bulletins on file for the E71:

  • SIB 17 03 09 Water pump check engine light Water pump check engine light on N63 engines (2006–2011); BMW released a revised part and repair procedure. Service bulletin · Oct 2010
  • SIB 11 11 17 Timing chain leak Timing chain leak on BMW G11/G12/G30/G31 and other models (2008–2018); BMW gives diagnosis and repair guidance. Service bulletin · Sep 2018
  • SIB 11 07 11 Turbocharger noise Turbocharger noise on BMW E60/E61/E63/E64 and other models (2010); BMW explains the cause and the approved repair. Service bulletin · Mar 2015

Sources: BMW SI B01 02 12 on NHTSA

Water pump, oil filter housing and valve cover leaks

Shared with the N52 and N55: the electric water pump and the usual N5x gasket leaks.

BMW bulletins on file for the E71:

N52 / N54 / N55 electric water pump + thermostat: prices → VANOS solenoids (intake / exhaust): prices →

N55 engine

xDrive35i / sDrive35i (2011–2014) · N55 bulletins →

Oil filter housing gasket, valve cover and oil pan leaks

The N55's most common repairs are oil leaks at the filter housing gasket, the plastic valve cover and the oil pan gasket.

BMW bulletins on file for the E71:

N55 oil filter housing gasket (OFHG): prices → N55 valve cover / valve cover gasket (PCV): prices → N55 oil pan gasket: prices →

Electric water pump and thermostat

Like the N52 and N54, the N55 uses an electric coolant pump that eventually fails.

BMW bulletins on file for the E71:

N52 / N54 / N55 electric water pump + thermostat: prices →

Charge pipe cracks

The plastic charge pipe between turbo and intercooler can crack, causing a sudden loss of boost; it's a shared N55/S55 weak point.

Sources: Lang Racing: N55/S55 crank hub and boost notes

N63 engine

xDrive50i (2008–2014), ActiveHybrid X6 (2010–2011) · N63 bulletins →

Oil consumption and valve stem seals

BMW issued a dedicated N63/S63 valve seal replacement procedure for cars with verified excessive oil consumption, oil-fouled plugs or smoke.

BMW bulletins on file for the E71:

N63 valve stem seals (oil burning / blue smoke): prices →

Sources: BMW SIB: N63 and S63 valve seal replacement (NHTSA)

N63 Customer Care Package (injectors, sensors, vacuum pump, seals)

For 2009–2014 N63 cars BMW created the Customer Care Package: a check and, if needed, replacement of air mass sensors, piezo injectors, the vacuum pump, turbo intake seals and crankcase vent lines. It's not a recall, so ask a BMW center whether it was done.

BMW bulletins on file for the E71:

Sources: BMW SIB 11 06 14: N63 Customer Care Package (NHTSA)

Turbo coolant lines, valve cover gaskets and timing chains

Hot-vee heat cooks the turbo coolant lines and valve cover gaskets; timing chain stretch is another known item.

BMW bulletins on file for the E71:

N63 turbo coolant lines (coolant leak in the hot V): prices → N63 valve cover gaskets (both banks): prices →

S63 engine

X6 M (2010–2014) · S63 bulletins →

Oil consumption and valve stem seals

BMW's valve seal replacement bulletin covers the S63 in the X5 M and X6 M as well as the N63.

BMW bulletins on file for the E71:

Sources: BMW SIB: N63 and S63 valve seal replacement (NHTSA)

Rod bearings, coils and injectors

Rod bearing wear is discussed on early S63s; misfires from coils and injectors and turbo coolant leaks also show up.

BMW bulletins on file for the E71:

Sources: BMW Tuning: S63 M5 and M6 engine problems

Most frequent bulletin topics 244 bulletins

TopicBulletinsExamples
Check engine light7SIB 12 04 15, SIB 13 04 09
Fuel injectors6SIB 13 08 15, SIB 12 38 14
Battery6SIB 61 03 14, SIB 61 10 25
Navigation6NHTSA 10162434, NHTSA 10147623
Transmission5SIB 11 09 16, SIB 24 03 13
Steering4SIB 66 24 19, SIB 12 05 12
Fuel injectors warranty extension4SIB 01 02 19, SIB 01 02 15
Outside Door Mirror Moves when Locking or Unlocking the Vehicle4NHTSA 10162404, NHTSA 10149441

BMW service bulletins and warranty extensions filed with NHTSA that list the E71, grouped by topic. A bulletin tells technicians how to diagnose and fix a known issue; it doesn't mean every car has the problem.

NHTSA recalls by component 17

Matched from NHTSA's public recall file by model and model year. Recall repairs are free; check a VIN.

BMW warranty extensions that list the E71

If a car qualifies, the listed repair may be free. Check eligibility for the VIN with a BMW center.

Sources: BMW service bulletins and recalls filed with NHTSA (public data) and the specialist and owner write-ups linked above. Not affiliated with BMW.

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