IllustrationSTEERING SYSTEM IS SOMEWHAT NON-RESPONSIVE WHEN WEATHER IS HOT. *TR
2004 BMW Z4
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Z4 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
680–25K
12925–50K
10550–75K
4275–100K
26100–150K
2150K+
372 reports with mileage · 39 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Steering. Review the 378 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 14 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
1 crash reports2 fire reports0 injury reports
Steering complaints
378 reportsI HAVE A HEAT-RELATED STEERING PROBLEM WITH MY CAR THAT HAS BEEN NOTED ON OTHER BMW Z4S. NORMALLY THE CAR HANDLES QUITE NICELY AND IS VERY RESPONSIVE. HOWEVER, WHENEVER THE CAR HAS BEEN SITTING AT A HIGH AMBIENT TEMPERATURE (HIGH 80S OR ABOVE), WHEN DRIVEN, THE STEERING WHEEL IS VERY NON-RESPONSIVE-STICKY AND DOESN'T TRACK BAC…
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I HAVE A HEAT-RELATED STEERING PROBLEM WITH MY CAR THAT HAS BEEN NOTED ON OTHER BMW Z4S. NORMALLY THE CAR HANDLES QUITE NICELY AND IS VERY RESPONSIVE. HOWEVER, WHENEVER THE CAR HAS BEEN SITTING AT A HIGH AMBIENT TEMPERATURE (HIGH 80S OR ABOVE), WHEN DRIVEN, THE STEERING WHEEL IS VERY NON-RESPONSIVE-STICKY AND DOESN'T TRACK BACK TO CENTER. THIS IS A SERIOUS SAFETY CONCERN SINCE SO MUCH FORCE IS REQUIRED ON SUCH A SMALL CAR TO MAKE WHAT SHOULD BE MINOR CORRECTIONS WHILE DRIVING THAT SEVERAL TIMES I'VE ALMOST ENDED TURNING INTO AN ADJACENT LANE ON THE FREEWAY WHILE TRYING TO DRIVE A STRAIGHT LINE. I AM VERY HESITANT TO DRIVE THE VEHICLE ON WARM DAYS (WHICH MEANS MOST DAYS HERE IN THE SOUTH) DUE TO MY CONCERNS ABOUT A POSSIBLE ACCIDENT DUE TO THE DEFECT. UNFORTUNATELY I DO NEED TO USE MY CAR. THIS PROBLEM HAS BEEN KNOWN FOR SEVERAL YEARS AND HAS BEEN REPORTED TO BMW ON SEVERAL OCCASIONS. DESPITE THIS, MY DEALER PROFESSES CONFUSION ABOUT WHAT COULD BE HAPPENING AND HAS TOLD ME THAT WHEN THE CAR HAS BEEN TAKEN FOR A TEST RUN (NOT ON THE FREEWAY AND NOT DURING A WARM DAY), IT'S HANDLED FINE. MEANWHILE, I'M LEFT DRIVING WHAT CAN ONLY BE CONSIDERED A DANGEROUSLY DEFECTIVE CAR THAT COULD QUITE EASILY CAUSE A SERIOUS ACCIDENT WHEN DRIVEN UNDER NORMAL, EVEN CAREFUL, CONDITIONS. *TR
WHEN AMBIENT TEMPERATURES ARE HIGH (E.G. >85-90F) (COMPOUNDED BY CAR BEING IN DIRECT SUNLIGHT), THE STEERING BECOMES DIFFICULT TO CONTROL. SPECIFICALLY, NORMAL STEERING WHEEL INPUT TRANSLATES INTO ERRATIC, JERKY MOVEMENTS ON THE ROAD. THE STEERING WHEEL WILL NOT RETURN TO CENTER AND THE CAR GENERALLY IS DIFFICULT TO CONTROL (I…
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WHEN AMBIENT TEMPERATURES ARE HIGH (E.G. >85-90F) (COMPOUNDED BY CAR BEING IN DIRECT SUNLIGHT), THE STEERING BECOMES DIFFICULT TO CONTROL. SPECIFICALLY, NORMAL STEERING WHEEL INPUT TRANSLATES INTO ERRATIC, JERKY MOVEMENTS ON THE ROAD. THE STEERING WHEEL WILL NOT RETURN TO CENTER AND THE CAR GENERALLY IS DIFFICULT TO CONTROL (I.E. MAINTAIN A STRAIGHT COURSE, REQUIRING CONSTANT AND EXAGGERATED STEERING WHEEL INPUT). THIS CONDITION IS TRANSIENT (I.E. STEERING RETURNS TO NORMAL WHEN THE AMBIENT TEMPERATURE DROPS); HOWEVER, DRIVING WHEN THE STEERING IS COMPROMISED AS DESCRIBED ABOVE IS UNNERVING AND WITHOUT A DOUBT INCREASES THE RISK OF AN ACCIDENT OCCURRING DUE TO A POTENTIAL LOSS OF DRIVER CONTROL (E.G. ON WET ROADS, MULTI-LANE HIGHWAY TRAFFIC). WHEN THIS OCCURRED A SECOND TIME, I IMMEDIATELY TOOK THE CAR TO THE BMW DEALERSHIP TO REPORT IT. THE BMW DEALERSHIP SUBSEQUENTLY CONFIRMED THE PROBLEM AS DESCRIBED ABOVE AND DIAGNOSED A FAILED STEERING COLUMN UNIT. BMW NA HAS OFFERED TO PAY FOR 50% OF THE REPAIR WITH THE OTHER 50% BEING OWNER'S RESPONSIBILITY (CAR WAS APPROX. 2.5 MONTHS OUT OF WARRANTY). JUDGING FROM THE PROPORTION OF SIMILAR COMPLAINTS FILED WITH NHTSA ON THE Z4, THIS ISSUE DOESN'T APPEAR TO BE ISOLATED AND WARRANTS FURTHER INVESTIGATION. *TR
IN WARM WEATHER ABOUT 75 AND UP STEERING GETS STICKY AND CANNOT CORRECT SMOOTHLY.*TR
I BOUGHT A BMW Z4 USED IN AUGUST 2007 WITH NO NOTICEABLE PROBLEMS. THIS YEAR (2008), THERE HAVE BEEN A FEW HEAT WAVES IN JUNE AND JULY IN NY AND I NOTICED THAT IF THE CAR SITS OUT IN THE SUN FOR A FEW HOURS, THE STEERING BECOMES STICKY, JERKY AND HARD TO CONTROL. AFTER BEING IN THE SHADE TO COOL DOWN THE STEER BECOMES SMOOTH, CO…
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I BOUGHT A BMW Z4 USED IN AUGUST 2007 WITH NO NOTICEABLE PROBLEMS. THIS YEAR (2008), THERE HAVE BEEN A FEW HEAT WAVES IN JUNE AND JULY IN NY AND I NOTICED THAT IF THE CAR SITS OUT IN THE SUN FOR A FEW HOURS, THE STEERING BECOMES STICKY, JERKY AND HARD TO CONTROL. AFTER BEING IN THE SHADE TO COOL DOWN THE STEER BECOMES SMOOTH, CONTROLLED AND NORMAL. I'VE STARTED RESEARCHING THIS ISSUE AND HAVE FOUND MANY ONLINE FORUMS WITH OWNER COMMENTS COMPLAINING ABOUT THE SAME PROBLEM. THERE APPEARS TO BE A FIX FROM BMW BUT MY CAR IS NOW OFF WARRANTY AND WILL ENTAIL ME PAYING FOR THESE REPAIRS OUT OF POCKET. THIS APPEARS TO ME TO BE A MAJOR SAFETY ISSUE AND MANUFACTURERS DEFECT WHICH SHOULD HAVE BEEN FIXED UNDER A RECALL (EITHER MANDATORY OR VOLUNTARY) LONG BEFORE I PURCHASED THE CAR IN '07. I HOPE THE NHTSA IS AWARE OF THIS SERIOUS PROBLEM AND CAN TAKE APPROPRIATE ACTION TO HAVE IT CORRECTED BY BMW. THANK YOU. *TR
I OWN A BMW Z4, AND IT IS MY SECOND ONE I OWN, AND IT HAS A STICKY STEERING COLUMN THAT ACTS UP IN HOT WEATHER, AND IT CREATES FOR VERY UNSAFE STEERING. I HAVE HAD MY ENTIRE STEERING RACK REPLACED IN MY LAST Z4, AND NOW MY SECOND CAR IS DOING THE SAME THING, BUT BMW OF FREMONT CANT DUPLICATE THE PROBLEM. *TR
UNDER NORMAL DRIVING CONDITIONS AT MODERATE SPEEDS, THE STEERING HAS A TENDENCY TO LOCK UP EITHER TOWARDS THE RIGHT AND LEFT CAUSING THE CAR TO VEER OUT OF THE LANE SPONTANEOUSLY. THERE IS NO RETURN OF THE STEERING WHEEL TO CENTER AND CONSTANT PRESSURE IN THE OPPOSITE DIRECTION IS REQUIRED TO AVOID COLLISION WITH ADJACENT VEHIC…
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UNDER NORMAL DRIVING CONDITIONS AT MODERATE SPEEDS, THE STEERING HAS A TENDENCY TO LOCK UP EITHER TOWARDS THE RIGHT AND LEFT CAUSING THE CAR TO VEER OUT OF THE LANE SPONTANEOUSLY. THERE IS NO RETURN OF THE STEERING WHEEL TO CENTER AND CONSTANT PRESSURE IN THE OPPOSITE DIRECTION IS REQUIRED TO AVOID COLLISION WITH ADJACENT VEHICLES. THIS OCCURS ON SLIGHT CURVES ON THE ROAD AND OCCASIONALLY ON STRAIGHT ROADS UNDER ALL WEATHER CONDITIONS.
STEERING PROBLEM AT 45+MPH WITH VEHICLE, STEERING IS VERY STICKY GOING STRAIGHT, CONSTANT CORRECTIONS CAUSE OVER STEERING, STEERING WHEEL DOES NOT RETURN TO NEUTRAL POSITION ON CURVES LEADING TO DANGEROUS CONDITIONS, TESTED TO 75 + MPH, GETS WORSE AT HIGHER SPEEDS OF FREEWAY DRIVING. JUST TOOK POSSESSION OF USED VEHICLE UNDER …
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STEERING PROBLEM AT 45+MPH WITH VEHICLE, STEERING IS VERY STICKY GOING STRAIGHT, CONSTANT CORRECTIONS CAUSE OVER STEERING, STEERING WHEEL DOES NOT RETURN TO NEUTRAL POSITION ON CURVES LEADING TO DANGEROUS CONDITIONS, TESTED TO 75 + MPH, GETS WORSE AT HIGHER SPEEDS OF FREEWAY DRIVING. JUST TOOK POSSESSION OF USED VEHICLE UNDER WARRANTY. *TR
STEERING STICKS IN HIGH TEMP. *TR
THE STEERING LOCKS UP IN HOT WEATHER FORCING ME TO OVER COMPENSATE WHEN DRIVING. ONCE THE CAR COOLS DOWN STEERING FEEDBACK RETURNS TO NORMAL. *TR
Official recalls
104V182000 · Fuel System, Gasoline:delivery:fuel Pump
Apr 12, 2004
ON CERTAIN PASSENGER VEHICLES, UNDER CERTAIN ENVIRONMENTAL CONDITIONS, A VAPOR LOCK IN THE FUEL PUMP COULD OCCUR CAUSING THE ENGINE TO STALL. IF THIS WERE TO HAPPEN, THE ENGINE WOULD NOT BE ABLE TO BE RESTARTED FOR APPROXIMATELY 15 TO 20 MINUTES.
Consequence & remedy
Consequence: IF STALLING WERE TO OCCUR, THE DRIVER WOULD BE UNABLE TO MAINTAIN VEHICLE SPEED OR ACCELERATE, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL INSTALL A RESISTOR IN THE ELECTRICAL LINE POWERING THE FUEL PUMP IN ORDER TO PREVENT AN OCCURRENCE OF VAPOR LOCK. THE RECALL BEGAN MAY 11, 2004. OWNERS SHOULD CONTACT BMW AT 1-800-831-1117.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2PE10020 · Sticky Steering
Opened Jun 28, 2010 · Closed Jun 28, 2011
Status: closed (inferred from source dates) · Steering; Steering:column; Steering:electric Power Assist System
ODI has evaluated the sticky steering condition, which included reviews of complaints and warranty claims, interviews and surveys of owners of complaint vehicles, road tests of complaint vehicles, and a review of BMW's engineering and test data.ODI found the sticky steering condition does not result in a significant steering effort, thus the impact on the driver's ability to control the vehicle does not appear to be significant.A safety-related defect trend has not been identified at this time and further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.See the attached report for additional information.In addition, during this investigation, ODI became aware of allegations of failure or loss of electric power-assisted steering on the subject vehicles.As a result, ODI is separately reviewing this issue to determine whether additional agency action is needed.
Additional source detail variants (3)
Steering
ODI has evaluated the sticky steering condition, which included reviews of complaints and warranty claims, interviews and surveys of owners of complaint vehicles, road tests of complaint vehicles, and a review of BMW's engineering and test data.ODI found the sticky steering condition does not result in a significant steering effort, thus the impact on the driver's ability to control the vehicle does not appear to be significant.A safety-related defect trend has not been identified at this time and further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.See the attached report for additional information.In addition, during this investigation, ODI became aware of allegations of failure or loss of electric power-assisted steering on the subject vehicles.As a result, ODI is separately reviewing this issue to determine whether additional agency action is needed.
Steering:column
ODI has evaluated the sticky steering condition, which included reviews of complaints and warranty claims, interviews and surveys of owners of complaint vehicles, road tests of complaint vehicles, and a review of BMW's engineering and test data.ODI found the sticky steering condition does not result in a significant steering effort, thus the impact on the driver's ability to control the vehicle does not appear to be significant.A safety-related defect trend has not been identified at this time and further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.See the attached report for additional information.In addition, during this investigation, ODI became aware of allegations of failure or loss of electric power-assisted steering on the subject vehicles.As a result, ODI is separately reviewing this issue to determine whether additional agency action is needed.
Steering:electric Power Assist System
ODI has evaluated the sticky steering condition, which included reviews of complaints and warranty claims, interviews and surveys of owners of complaint vehicles, road tests of complaint vehicles, and a review of BMW's engineering and test data.ODI found the sticky steering condition does not result in a significant steering effort, thus the impact on the driver's ability to control the vehicle does not appear to be significant.A safety-related defect trend has not been identified at this time and further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.See the attached report for additional information.In addition, during this investigation, ODI became aware of allegations of failure or loss of electric power-assisted steering on the subject vehicles.As a result, ODI is separately reviewing this issue to determine whether additional agency action is needed.
EA08001 · BMW Airbag Light Illumination
Opened Jan 4, 2008 · Closed Dec 31, 2008
Status: closed (inferred from source dates) · Air Bags; Air Bags:frontal; Air Bags:frontal:sensor/control MODULE-INACTIVE
BMW IS CONDUCTING A SAFETY RECALL CAMPAIGN ON APPROXIMATELY 200,000 MY04 THROUGH MY06 SUBJECT VEHICLES BUILT THROUGH 11/30/05 TO CORRECT THE FRONT PASSENGER SEAT AIR BAG OCCUPANT DETECTION MAT. THE SPECIFIC VEHICLES INCLUDED IN THE RECALL AREMY04- 06/ 5-SERIES WITH STANDARD AND SPORT SEATS, MY04-06/ X3-SERIES AND MY06/ 3-SERIES WITH SPORT SEATS. IN ADDITION, BMW WILL EXTEND THE WARRANTY COVERAGE OF THE PASSENGER SEAT AIR BAG OCCUPANT DETECTION MAT TO 10-YEAR/UNLIMITED MILEAGE ON APPROXIMATELY 120,000 REMAINING MY04-06 SUBJECT VEHICLES BUILT THROUGH 11/30/05. THE SPECIFIC VEHICLES INCLUDED IN THE EXTENDED WARRANTY ARE MY 06/ 6 SERIES, MY 06/ 3-SERIES WITH STANDARD SEATS, MY04-05/ Z4, MY04-06/ 7 SERIES, MY 06/ X5, AND MY04-06/ 5-SERIES WITH COMFORT SEATS.THE AVERAGE FREQUENCY OF FAILURES AMONG THE EXTENDED WARRANTY GROUPS WAS LESS THAN 1/7TH OF THE RECALL VEHICLE GROUPS.PLEASE SEE BMW'S 08V-384 RECALL NOTIFICATION FOR FURTHER DETAILSDEPENDING ON SEAT CONFIGURATION AND VEHICLE GEOMETRY, THE OCCUPANT DETECTION MAT CAN FATIGUE DURING USE DEPENDING ON THE MANNER AND FREQUENCY OF THE FRONT PASSENGER'S ENTRY AND EXIT.SPECIFICALLY, OVER TIME, MICRO-CRACKS COULD DEVELOP IN THE SIDE FLANKS OF THE MAT CAUSING A BROKEN CIRCUIT.A BROKENCIRCUIT CAN LEAD TO THE DEACTIVATION OF THE PASSENGER AIR BAG AND THE ILLUMINATION OF BOTH THE AIR BAG WARNING LIGHT AND THE PASSENGER AIR BAG LIGHT.
Additional source detail variants (3)
Air Bags
BMW IS CONDUCTING A SAFETY RECALL CAMPAIGN ON APPROXIMATELY 200,000 MY04 THROUGH MY06 SUBJECT VEHICLES BUILT THROUGH 11/30/05 TO CORRECT THE FRONT PASSENGER SEAT AIR BAG OCCUPANT DETECTION MAT. THE SPECIFIC VEHICLES INCLUDED IN THE RECALL AREMY04- 06/ 5-SERIES WITH STANDARD AND SPORT SEATS, MY04-06/ X3-SERIES AND MY06/ 3-SERIES WITH SPORT SEATS. IN ADDITION, BMW WILL EXTEND THE WARRANTY COVERAGE OF THE PASSENGER SEAT AIR BAG OCCUPANT DETECTION MAT TO 10-YEAR/UNLIMITED MILEAGE ON APPROXIMATELY 120,000 REMAINING MY04-06 SUBJECT VEHICLES BUILT THROUGH 11/30/05. THE SPECIFIC VEHICLES INCLUDED IN THE EXTENDED WARRANTY ARE MY 06/ 6 SERIES, MY 06/ 3-SERIES WITH STANDARD SEATS, MY04-05/ Z4, MY04-06/ 7 SERIES, MY 06/ X5, AND MY04-06/ 5-SERIES WITH COMFORT SEATS.THE AVERAGE FREQUENCY OF FAILURES AMONG THE EXTENDED WARRANTY GROUPS WAS LESS THAN 1/7TH OF THE RECALL VEHICLE GROUPS.PLEASE SEE BMW'S 08V-384 RECALL NOTIFICATION FOR FURTHER DETAILSDEPENDING ON SEAT CONFIGURATION AND VEHICLE GEOMETRY, THE OCCUPANT DETECTION MAT CAN FATIGUE DURING USE DEPENDING ON THE MANNER AND FREQUENCY OF THE FRONT PASSENGER'S ENTRY AND EXIT.SPECIFICALLY, OVER TIME, MICRO-CRACKS COULD DEVELOP IN THE SIDE FLANKS OF THE MAT CAUSING A BROKEN CIRCUIT.A BROKENCIRCUIT CAN LEAD TO THE DEACTIVATION OF THE PASSENGER AIR BAG AND THE ILLUMINATION OF BOTH THE AIR BAG WARNING LIGHT AND THE PASSENGER AIR BAG LIGHT.
Air Bags:frontal
BMW IS CONDUCTING A SAFETY RECALL CAMPAIGN ON APPROXIMATELY 200,000 MY04 THROUGH MY06 SUBJECT VEHICLES BUILT THROUGH 11/30/05 TO CORRECT THE FRONT PASSENGER SEAT AIR BAG OCCUPANT DETECTION MAT. THE SPECIFIC VEHICLES INCLUDED IN THE RECALL AREMY04- 06/ 5-SERIES WITH STANDARD AND SPORT SEATS, MY04-06/ X3-SERIES AND MY06/ 3-SERIES WITH SPORT SEATS. IN ADDITION, BMW WILL EXTEND THE WARRANTY COVERAGE OF THE PASSENGER SEAT AIR BAG OCCUPANT DETECTION MAT TO 10-YEAR/UNLIMITED MILEAGE ON APPROXIMATELY 120,000 REMAINING MY04-06 SUBJECT VEHICLES BUILT THROUGH 11/30/05. THE SPECIFIC VEHICLES INCLUDED IN THE EXTENDED WARRANTY ARE MY 06/ 6 SERIES, MY 06/ 3-SERIES WITH STANDARD SEATS, MY04-05/ Z4, MY04-06/ 7 SERIES, MY 06/ X5, AND MY04-06/ 5-SERIES WITH COMFORT SEATS.THE AVERAGE FREQUENCY OF FAILURES AMONG THE EXTENDED WARRANTY GROUPS WAS LESS THAN 1/7TH OF THE RECALL VEHICLE GROUPS.PLEASE SEE BMW'S 08V-384 RECALL NOTIFICATION FOR FURTHER DETAILSDEPENDING ON SEAT CONFIGURATION AND VEHICLE GEOMETRY, THE OCCUPANT DETECTION MAT CAN FATIGUE DURING USE DEPENDING ON THE MANNER AND FREQUENCY OF THE FRONT PASSENGER'S ENTRY AND EXIT.SPECIFICALLY, OVER TIME, MICRO-CRACKS COULD DEVELOP IN THE SIDE FLANKS OF THE MAT CAUSING A BROKEN CIRCUIT.A BROKENCIRCUIT CAN LEAD TO THE DEACTIVATION OF THE PASSENGER AIR BAG AND THE ILLUMINATION OF BOTH THE AIR BAG WARNING LIGHT AND THE PASSENGER AIR BAG LIGHT.
Air Bags:frontal:sensor/control MODULE-INACTIVE
BMW IS CONDUCTING A SAFETY RECALL CAMPAIGN ON APPROXIMATELY 200,000 MY04 THROUGH MY06 SUBJECT VEHICLES BUILT THROUGH 11/30/05 TO CORRECT THE FRONT PASSENGER SEAT AIR BAG OCCUPANT DETECTION MAT. THE SPECIFIC VEHICLES INCLUDED IN THE RECALL AREMY04- 06/ 5-SERIES WITH STANDARD AND SPORT SEATS, MY04-06/ X3-SERIES AND MY06/ 3-SERIES WITH SPORT SEATS. IN ADDITION, BMW WILL EXTEND THE WARRANTY COVERAGE OF THE PASSENGER SEAT AIR BAG OCCUPANT DETECTION MAT TO 10-YEAR/UNLIMITED MILEAGE ON APPROXIMATELY 120,000 REMAINING MY04-06 SUBJECT VEHICLES BUILT THROUGH 11/30/05. THE SPECIFIC VEHICLES INCLUDED IN THE EXTENDED WARRANTY ARE MY 06/ 6 SERIES, MY 06/ 3-SERIES WITH STANDARD SEATS, MY04-05/ Z4, MY04-06/ 7 SERIES, MY 06/ X5, AND MY04-06/ 5-SERIES WITH COMFORT SEATS.THE AVERAGE FREQUENCY OF FAILURES AMONG THE EXTENDED WARRANTY GROUPS WAS LESS THAN 1/7TH OF THE RECALL VEHICLE GROUPS.PLEASE SEE BMW'S 08V-384 RECALL NOTIFICATION FOR FURTHER DETAILSDEPENDING ON SEAT CONFIGURATION AND VEHICLE GEOMETRY, THE OCCUPANT DETECTION MAT CAN FATIGUE DURING USE DEPENDING ON THE MANNER AND FREQUENCY OF THE FRONT PASSENGER'S ENTRY AND EXIT.SPECIFICALLY, OVER TIME, MICRO-CRACKS COULD DEVELOP IN THE SIDE FLANKS OF THE MAT CAUSING A BROKEN CIRCUIT.A BROKENCIRCUIT CAN LEAD TO THE DEACTIVATION OF THE PASSENGER AIR BAG AND THE ILLUMINATION OF BOTH THE AIR BAG WARNING LIGHT AND THE PASSENGER AIR BAG LIGHT.