2003 BMW 525I vs 2003 Saturn Ion
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 7, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2003 BMW 525I | 2003 Saturn Ion |
|---|---|---|
| NHTSA complaints | 32 | 756 |
| Recall campaigns | 2 | 5 |
| Service bulletins (TSBs) | 13 | 498 |
| Investigations | 0 | 5 |
| Crash reports | 3 | 43 |
| Fire reports | 1 | 4 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 19–21 | 24–25 |
| Median reported incident mileage | 42,189 mi | 72,178 mi |
Reported problems side by side
| Component | BMW 525I | Saturn Ion |
|---|---|---|
| Electrical System | 8 | 381 |
| Steering | 1 | 139 |
| Air Bags | 10 | 49 |
| Engine and Engine Cooling | 1 | 58 |
| Power Train | 1 | 55 |
| Vehicle Speed Control | 2 | 38 |
| Exterior Lighting | 4 | 31 |
| Visibility | 1 | 33 |
Symptoms owners describe
| Won’t start | 0 | 133 |
| Stalling | 0 | 81 |
| Steering problems | 0 | 32 |
| Loss of power | 0 | 23 |
| Rust / corrosion | 0 | 18 |
| Hesitation / surging | 0 | 11 |
| Check engine light | 0 | 9 |
| Shifting problems | 0 | 7 |
2003 BMW 525I
2003 Saturn Ion
Compare all BMW 525I vs Saturn Ion years →
Method. Complaints are unique NHTSA reports. A vehicle that sold more units will naturally accumulate more complaints — use shares and read the underlying reports before drawing conclusions.