Total Complaints
5 filings
BMW 525 · model year
5 NHTSA complaints, 2 crash reports, and 1 active recall for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2001BMW525 carries 5 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 2 crashes, 1 fire, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2001 525 is engine and engine cooling:cooling system:fan with 1 filings, followed by air bags (1) and vehicle speed control (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 1 active recall campaign, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 34 investigation files overlapping the 2001 525. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
5 filings
Crashes Reported
2 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN | 1 |
| AIR BAGS | 1 |
| VEHICLE SPEED CONTROL | 1 |
| STRUCTURE | 1 |
| SERVICE BRAKES, HYDRAULIC | 1 |
AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE
BMW of North America, LLC (BMW) is recalling certain 2000-2002 BMW 320i, 323i, 325i, 325xi, 330i, 330xi, 323Ci, 325Ci, 330Ci, M3, 323iT, 325iT and 325xiT vehicles, 2001-2002 525i, 530i, 540i, M5, 525iT and 540iT vehicles, and 2001-2003 X5 3.0i, X5 4.4i, and X5 4.6is vehicles. These vehicles may hav
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
Mileage: 144,414
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
Mileage: 144,414
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
Mileage: 50,000
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
Mileage: 50,000
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
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.