RoadVitals

2001 BMW 525 Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
3
Latest Jan 17, 2012
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
5
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
2

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2001 BMW 525, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Airbags120.0%
  • Body & structure120.0%
  • Brakes120.0%
  • Driver assistance120.0%
  • Engine120.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

1
report

From owner reports, verbatim

TL*THE CONTACT OWNS A 2001 BMW 525. WHILE DRIVING, THE CONTACT HEARD A NOISE. THE VEHICLE THEN SUDDENLY LOST CONTROL ,VEERED TO THE RIGHT, AND CRASHED INTO A CHANNELIZER BARREL AT HIGHWAY SPEEDS. ALTHOUGH, HE STRUCK THE BARREL HEAD ON THE AIR BAG FAILED TO DEPLOY. THE CURRENT AND FAILURE MILEAGES WERE 50,000.*AK

NHTSA ID 10188061 · filed Apr 16, 2007

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

1
report

From owner reports, verbatim

POWER BRAKE SERVO FAILURE DUE TO WATER ACCUMULATION. DRIVING THE CAR AND ATTEMPTED TO STOP WHEN THERE WAS SUDDENLY NO POWER BRAKES. DEALER INDICATED THAT IT WAS CAUSED BY A BAD VACUUM LINE. WHEN REPLACING THE VACUUM HOSE, I FOUND THE BRAKES BOOSTER (SERVO) SUBMERGED IN 6 INCHES OF WATER. AFTER DRAINING THE WATER AND DISCONNECTING THE VACUUM HOSE A LARGE AMOUNT OF WATER DRAINED FROM INSIDE THE POWER BOOSTER/SERVO. CAR RAN FINE AFTER REPAIR. 1 WEEK LATER, ON 1/16/12 DURING SUB-FREEZING TEMPS, THERE WS NO BRAKE PEDAL FUNCTION AT ALL. EXTENSIVE WEB SEARCH FOUND SEVERAL THREADS DEVOTED TO THE PROBLEM. HERE IS ONE OF THOSE LINKS: HTTP://WWW.BIMMERFEST.COM/FORUMS/SHOWTHREAD.PHP?T=418457 TWO POTENTIAL CAUSES: 1 - THE BRAKE BOOSTER/SERVO IS IN A WELL. THIS WELL DOES HAVE A SMALL DRAINAGE HOLE THAT CAN CLOG DUE TO LEAVES OR OTHER DEBRIS. THIS WELL IS UNDER A CABIN AIR FILTER BOX. THE AIR FILTER IS A NORMAL MAINTENANCE ITEM, COMPLETE REMOVAL OF THE BOX AND MAINTENANCE UNDER THE BOX IS NOT PART OF STANDARD MAINTENANCE. IN CLIMATES WHERE LEAVES FALL, THEY CAN COLLECT UNDER THIS BOX AND BLOCK DRAINAGE. SHOULD THE WELL FILL WITH WATER THE UNIT WILL BECOME SUBMERGED AND ULTIMATELY TAKE ON WATER. WATER SEEPING INTO THE BOOSTER/SERVO CAN CAUSE FAILURE OF THE UNIT CAUSING BRAKE FUNCTION TO BE DRASTICALLY REDUCED. IF ALL THE WATER IS NOT DRAINED, IN BELOW FREEZING CONDITIONS THE WATER IN THE BOOSTER/SERVO WILL FREEZE, EFFECTIVELY FREEZING THE BRAKE PEDAL, MAKING BRAKING IMPOSSIBLE! THIS WATER CAN ALSO GET SUCKED INTO THE VACUUM LINE AND BE SUCKED INTO THE INTAKE MANIFOLD AND THEN INTO THE ENGINE POTENTIALLY CAUSING MASSIVE ENGINE FAILURE. 2 - FAILURE OF THE CCV VALVE, CAUSED BY CONDENSATE, CAN ALSO CAUSE WATER TO ULTIMATELY BACK-UP INTO THE VACUUM SYSTEM AND INTO THE BRAKE BOOSTER/SERVO, CAUSING THE SAME EFFECTS MENTIONED ABOVE. BOOSTER REPLACEMENT NEEDED. *TR

NHTSA ID 10444001 · filed Jan 17, 2012

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

1
report

From owner reports, verbatim

POWER BRAKE SERVO FAILURE DUE TO WATER ACCUMULATION. DRIVING THE CAR AND ATTEMPTED TO STOP WHEN THERE WAS SUDDENLY NO POWER BRAKES. DEALER INDICATED THAT IT WAS CAUSED BY A BAD VACUUM LINE. WHEN REPLACING THE VACUUM HOSE, I FOUND THE BRAKES BOOSTER (SERVO) SUBMERGED IN 6 INCHES OF WATER. AFTER DRAINING THE WATER AND DISCONNECTING THE VACUUM HOSE A LARGE AMOUNT OF WATER DRAINED FROM INSIDE THE POWER BOOSTER/SERVO. CAR RAN FINE AFTER REPAIR. 1 WEEK LATER, ON 1/16/12 DURING SUB-FREEZING TEMPS, THERE WS NO BRAKE PEDAL FUNCTION AT ALL. EXTENSIVE WEB SEARCH FOUND SEVERAL THREADS DEVOTED TO THE PROBLEM. HERE IS ONE OF THOSE LINKS: HTTP://WWW.BIMMERFEST.COM/FORUMS/SHOWTHREAD.PHP?T=418457 TWO POTENTIAL CAUSES: 1 - THE BRAKE BOOSTER/SERVO IS IN A WELL. THIS WELL DOES HAVE A SMALL DRAINAGE HOLE THAT CAN CLOG DUE TO LEAVES OR OTHER DEBRIS. THIS WELL IS UNDER A CABIN AIR FILTER BOX. THE AIR FILTER IS A NORMAL MAINTENANCE ITEM, COMPLETE REMOVAL OF THE BOX AND MAINTENANCE UNDER THE BOX IS NOT PART OF STANDARD MAINTENANCE. IN CLIMATES WHERE LEAVES FALL, THEY CAN COLLECT UNDER THIS BOX AND BLOCK DRAINAGE. SHOULD THE WELL FILL WITH WATER THE UNIT WILL BECOME SUBMERGED AND ULTIMATELY TAKE ON WATER. WATER SEEPING INTO THE BOOSTER/SERVO CAN CAUSE FAILURE OF THE UNIT CAUSING BRAKE FUNCTION TO BE DRASTICALLY REDUCED. IF ALL THE WATER IS NOT DRAINED, IN BELOW FREEZING CONDITIONS THE WATER IN THE BOOSTER/SERVO WILL FREEZE, EFFECTIVELY FREEZING THE BRAKE PEDAL, MAKING BRAKING IMPOSSIBLE! THIS WATER CAN ALSO GET SUCKED INTO THE VACUUM LINE AND BE SUCKED INTO THE INTAKE MANIFOLD AND THEN INTO THE ENGINE POTENTIALLY CAUSING MASSIVE ENGINE FAILURE. 2 - FAILURE OF THE CCV VALVE, CAUSED BY CONDENSATE, CAN ALSO CAUSE WATER TO ULTIMATELY BACK-UP INTO THE VACUUM SYSTEM AND INTO THE BRAKE BOOSTER/SERVO, CAUSING THE SAME EFFECTS MENTIONED ABOVE. BOOSTER REPLACEMENT NEEDED. *TR

NHTSA ID 10444001 · filed Jan 17, 2012

Too few reports in this category for a page of its own — they appear in the full complaint list.

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

1
report

From owner reports, verbatim

TL*THE CONTACT OWNS A 2001 BMW 525. WHILE DRIVING, THE CONTACT HEARD A NOISE. THE VEHICLE THEN SUDDENLY LOST CONTROL ,VEERED TO THE RIGHT, AND CRASHED INTO A CHANNELIZER BARREL AT HIGHWAY SPEEDS. ALTHOUGH, HE STRUCK THE BARREL HEAD ON THE AIR BAG FAILED TO DEPLOY. THE CURRENT AND FAILURE MILEAGES WERE 50,000.*AK

NHTSA ID 10188061 · filed Apr 16, 2007

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

1
report

From owner reports, verbatim

ENGINE COMPARTMENT STARTED SMOKING. CONSUMER PULLED INTO A PARKING LOT AND SHUT VEHICLE OFF. SERVICE MANAGER HAD VEHICLE TOWED TO DEALERSHIP. ELECTRICAL COMPONETS IN FAN WERE BURNED OUT. CONSUMER STATED THIS PROBLEM STARTED AFTER RECALL WAS PERFORMED. DEALER ADVISED CONSUMER TO ATTACHED RECALL INFORMATION.*AK *YH

NHTSA ID 898621 · filed Nov 1, 2001

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .