YearToAvoid

2006 BMW M5 Reliability Data: Problems & Recalls

Avoid The 2006 BMW M5 ranks worst (1 of 15 model years) with a complaint index of 100 and 39 complaints, mostly airbag-related. It carries an Avoid verdict, driven largely by passenger airbag sensor failures and one recall covering a battery cable connector issue.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
100/100
#1 of 15 M5 years
Verdict
Avoid
vs. other years of this model
Complaints
39
unique NHTSA reports
Recalls
1
distinct NHTSA campaigns
Crashes
1
reported in complaints
Fires
0
Injuries
1
Top issue
Airbags
Best nearby year
2007
lowest-risk (no Good/Best year)
NHTSA overall rating
Not rated
EPA combined MPG
13
11 city / 17 hwy
Injuries / deaths
1 / 0

Top 2006 BMW M5 problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Airbags25 (64%)
  2. Seat Belts7 (18%)
  3. Engine6 (15%)
  4. Transmission & Powertrain5 (13%)
  5. Electrical System4 (10%)
  6. Structure & Body3 (8%)
  7. Fuel System1 (3%)
  8. Other1 (3%)
  9. Steering1 (3%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Passenger airbag warning light illuminates and dealers trace it to a failed occupancy sensor that disables the airbag entirely.
  • SMG sequential transmission fails to engage gear at startup or at stops, sometimes producing a loud clunk before popping to neutral.
  • Engine surges forward unexpectedly at idle or low speed, with dealers unable to duplicate the fault on repeated attempts.
  • Engine stalls completely while driving, including at a stop light, then restarts briefly before stalling again.
  • Headlight wiring insulation crumbles and exposes bare wires that short together, cutting off the headlight.
  • Engine idling and knocking issues persist even after dealers replace engine parts, eventually accompanied by visible smoke and oil leakage.
2006 BMW M5 complaints: complaints filed per month3Dec 2006Apr 2011Jul 2012Jun 2013May 2014Jan 2015Aug 2017
39 complaints filed with NHTSA from Dec 2006 to Aug 2026; peak Mar 2014 (3).

2006 BMW M5 recalls

1 NHTSA recall campaign list this model year.

  1. NHTSA 12V126000Mar 26, 2012Electrical System367,682 vehicles

    Electrical system:12v/24v/48v battery:cables

    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.

2006 BMW M5 fuel economy and fuel cost

City
11 MPG
Highway
17 MPG
Combined
13 MPG
Annual fuel cost (EPA)
$6,150
15,000 mi/yr
Fuel
Premium
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2006 compared with other M5 years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’06’07’08’09’10’13’14’15’16’18’19’20’21’22’25
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2006Avoid10039113
2007Caution576113
2008Avoid866213

All BMW M5 years: best and worst →

Frequently asked questions

Is the 2006 BMW M5 reliable?
Based on NHTSA owner complaints and recalls, the 2006 M5 ranks worst of 15 model years with a complaint index of 100, mostly tied to airbag sensor failures.
What is the biggest problem with the 2006 BMW M5?
Airbags are the top problem area, making up 64% of complaints (25 of 39), mostly passenger occupancy sensor failures that disable the airbag.
Does the 2006 BMW M5 have a recall?
Yes, one recall (12V126000) covers an insulated bulkhead connector for the positive battery cable that may fail.
At what mileage do 2006 M5 problems usually appear?
Airbag complaints show a median mileage of 62,128 miles, while overall complaints across all systems show a median of 55,100 miles.
How does the 2006 M5 compare to other M5 years?
It is the worst-ranked year with a complaint index of 100, compared to 2007 (57, Caution) and 2013 (93, Avoid), the next highest-complaint years.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.