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2004 BMW 645CI

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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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

Limited mileage data: 7 of 11 reports include usable mileage. There isn’t enough coverage to show a useful chart.

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.

  • Air Bags. Review the 5 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Seat Belts. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

Service Brakes, Hydraulic complaints

1 reports
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150,000 miles · Nov 16, 2012
Service BrakesService Brakes, Hydraulic

TL* THE CONTACT OWNS A 2004 BMW 645CI. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED UNDER NHTSA CAMPAIGN ID NUMBER 10V446000 (SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM). THE CONTACT STATED THAT A YEAR AFTER THE REPAIRS WERE COMPLETED, A BRAKE FAILURE OCCURRED AND THERE HAD NOT BEEN A FAILURE PRESENT BEFORE THE VEHICLE WA…

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TL* THE CONTACT OWNS A 2004 BMW 645CI. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED UNDER NHTSA CAMPAIGN ID NUMBER 10V446000 (SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM). THE CONTACT STATED THAT A YEAR AFTER THE REPAIRS WERE COMPLETED, A BRAKE FAILURE OCCURRED AND THERE HAD NOT BEEN A FAILURE PRESENT BEFORE THE VEHICLE WAS SERVICED UNDER THE RECALL. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS CONFIRMED THAT THE MASTER CYLINDER AND BOOSTER HAD FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED ABOUT THE ISSUE. THE FAILURE MILEAGE WAS 150,000 AND THE CURRENT MILEAGE WAS 150,100. UPDATED 02/20/13*LJ UPDATED 02/20/2013 *JS

NHTSA ODI #10484964

Official recalls

0

No recalls in this snapshot.

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

0

No exact-year investigations in this snapshot.