Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 17, 2026.
Fuel economy
15–18 mpgcombined; city 13–15, highway 19–23; every version of this model year
Five years of fuel
$22,360–$26,830U.S. average; Ohio $21,070–$25,280 at local prices; every version of this model year; fuel only, not other costs of owning it; 15,000 miles a year, at EIA fuel prices for the week of Oct 12, 2026
NHTSA overall safety rating
Not ratedNHTSA has no overall rating for this year
Owners have filed 5 complaints with NHTSA about the 2006 6 Series. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.
Complaints by part of the car
Part
Complaints
Crashes
Fires
Injuries
Engine and engine cooling
2
0
0
0
Air bags
1
0
0
0
Equipment
1
0
0
0
Seats
1
0
0
0
Service brakes, hydraulic
1
0
0
0
Suspension
1
0
0
0
Tires
1
0
0
0
Complaints by model year
Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.
NHTSA lists 5 recall campaigns for the 2006 6 Series over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.
BMW IS RECALLING CERTAIN MODEL YEAR 2004-2010 5-SERIES, MODEL YEAR 2004-2010 6-SERIES, MODEL YEAR 2006-2010 M5, AND MODEL YEAR 2007-2010 M6 VEHICLES. THE INSULATED BULKHEAD CONNECTOR FOR THE POSITIVE BATTERY CABLE MAY HAVE BEEN INCORRECTLY ATTACHED TO THE TRUNK FLOOR PANEL, WHICH CAN LEAD TO A LOOSENING OF THE BOLT CONNECTION. AS IT LOOSENS, AN INCREASE IN ELECTRICAL RESISTANCE AT THIS CABLE CONNECTION IS POSSIBLE AND COULD CAUSE THE CABLE CONNECTION TO OVERHEAT.
Risk: OVERHEATING COULD LEAD TO A FIRE, EVEN WHILE THE VEHICLE IS NOT IN USE. AS A PRECAUTION, OWNERS ARE ADVISED TO PARK OUTSIDE UNTIL THE REMEDY HAS BEEN MADE.
Remedy: BMW WILL NOTIFY OWNERS, AND DEALERS WILL INSPECT AND SECURE THE BATTERY BOLT CABLE CONNECTION AS NECESSARY, FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 30, 2012. OWNERS MAY CONTACT BMW CUSTOMER RELATIONS AND SERVICES AT 1-800-525-7417.
BMW IS RECALLING CERTAIN MODEL YEAR 2004-2010 5-SERIES, 6-SERIES, AND MODEL YEAR 2002-2008 7-SERIES VEHICLES. A CHECK VALVE OF THE BRAKE VACUUM PUMP MAY LEAK A SMALL AMOUNT OF LUBRICATING OIL. OVER TIME THIS COULD RESULT IN CONTAMINATION OF THE BRAKE BOOSTER.
Risk: POWER ASSIST BRAKING PERFORMANCE COULD BE ADVERSELY AFFECTED. IN EXTREME CASES THERE COULD BE A COMPLETE LOSS OF POWER ASSIST BRAKING. AN UNEXPECTED REDUCTION OR LOSS IN POWER BRAKING ASSIST MAY INCREASE THE RISK OF A CRASH.
Remedy: BMW WILL NOTIFY OWNERS AND DEALERS WILL REPAIR THE VEHICLES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON NOVEMBER 24, 2010. OWNERS MAY CONTACT BMW AT 1-800-525-7417.
ON CERTAIN PASSENGER VEHICLES, THE LOWER RUBBER MOUNT OF THE REAR SHOCK ABSORBERS MAY NOT HAVE BEEN MANUFACTURED TO SPECIFICATIONS AND MAY NOT ADHERE CORRECTLY TO ITS HOUSING WITHIN THE SHOCK ABSORBER.
Risk: THE BUSHING COULD LOOSEN AND OVER TIME COULD SEPARATE FROM ITS HOUSING. THE DRIVER WILL EXPERIENCE IMPAIRED VEHICLE HANDLING AND CONTROL INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE REAR SHOCK ABSORBER FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 13, 2006. OWNERS MAY CONTACT BMW AT 1-800-831-1117.
ON CERTAIN PASSENGER VEHICLES, THE NUTS WHICH SECURE THE FRONT AXLE CONTROL ARM AND TENSION STRUT TO THE FRONT WHEEL HUB MAY NOT HAVE BEEN TIGHTENED TO SPECIFICATION. OVER TIME THE NUTS COULD LOOSEN AND THE CONTROL ARM AND TENSION STRUT COULD BE DAMAGED.
Risk: VEHICLE HANDLING AND CONTROL COULD COMPROMISE INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL RETIGHTEN THE FRONT AXLE CONTROL ARM AND TENSION STRUT NUTS TO THE CORRECT SPECIFICATIONS FREE OF CHARGE. THE RECALL BEGAN ON JUNE 28, 2006. OWNERS MAY CONTACT BMW AT 1-800-831-1117.
CERTAIN PASSENGER VEHICLES MAY HAVE BEEN BUILT WITH AN INCORRECTLY MANUFACTURED AUTOMATIC TRANSMISSION PARKING PAWL GUIDE PLATE.
Risk: THIS COULD CAUSE THE PARKING LOCK SYSTEM NOT TO ENGAGE, AFTER THE TRANSMISSION IS PLACED IN THE PARK ("P") POSITION. IF THE VEHICLE WAS PARKED ON AN INCLINE, AND THE PARKING BRAKE WAS NOT ENGAGED, THIS COULD RESULT IN A VEHICLE ROLLAWAY CONDITION.
Remedy: DEALERS WILL REPAIR AND REPLACE THE AUTOMATIC TRANSMISSION GUIDE PLATE FREE OF CHARGE. THE RECALL BEGAN ON NOVEMBER 30, 2005. OWNERS MAY CONTACT BMW AT 1-800-332-4269.
Carmakers sent NHTSA 26 service bulletins and notices that cover the 2006 6 Series, the latest on Jan 16, 2024. They tell dealers how to fix known issues.
The parts they mention most: electrical system (8), power train (5), engine and engine cooling (4), fuel system (4), gasoline (3).
NHTSA defect investigations
Opening an investigation isn't a finding of a defect. Outcomes are as NHTSA's summary states them. A recall is shown as an investigation's outcome only where NHTSA's summary names it; other recalls NHTSA's file lists with it are marked as listed, not caused.
Investigation
Part
Opened
Status
Engineering analysis EA08001 BMW AIRBAG LIGHT ILLUMINATION
The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2006 6 Series.
EPA class: subcompact cars. Each version EPA tested:
Swipe the table sideways for more columns.
Version
Engine
Transmission
Fuel
City / hwy / comb
650ci Rear-Wheel Drive
4.8 L, 8 cyl
Automatic (S6)
Premium Gasoline
15 / 23 / 18
650ci Rear-Wheel Drive
4.8 L, 8 cyl
Manual 6-spd
Premium Gasoline
14 / 21 / 16
650ci Rear-Wheel Drive
4.8 L, 8 cyl
Automatic (S6)
Premium Gasoline
14 / 20 / 16
650ci Rear-Wheel Drive
4.8 L, 8 cyl
Manual 6-spd
Premium Gasoline
13 / 20 / 15
650ci Rear-Wheel Drive
4.8 L, 8 cyl
Automatic (S6)
Premium Gasoline
13 / 19 / 15
Sources and dates
U.S. EPA fuel economy data, file of Sep 29, 2026
NHTSA owner complaints, file of Oct 17, 2026
NHTSA recalls, file of Oct 17, 2026
NHTSA manufacturer communications, file of Oct 17, 2026
NHTSA defect investigations, file of Oct 17, 2026
NHTSA 5-Star Safety Ratings, file of Aug 7, 2026
U.S. Energy Information Administration, file of Oct 12, 2026
Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data