The BMW 328iS draws 1 complaints per production run against 3.72 for the average car — better than typical. Failures cluster at 4 years, so only 0% of them fall inside the 4-year basic warranty.
When it starts to break
Not the calendar year the complaint was filed — the age of the car when it failed. That age decides who pays: inside the warranty the manufacturer does, outside it you do.
| Age at failure | Complaints | Running total | Warranty |
|---|---|---|---|
| 4 years | 100% | you pay |
Basic warranty on this car is 4 years / 50,000 miles. Only 0% of reported failures happen inside it — the remaining 100% come out of the owner's pocket. Powertrain cover (4 years / 50,000 miles) reaches further, but it only covers engine and transmission, and most complaints here are not either.
What actually fails — and at what age
Ordered by how often owners reported each system, with the age at which it typically goes. On a BMW 328iS the early trouble is Electrical System — reported at around 4 years, so a car still under warranty is the one to check for it.
| System | Complaints | Typical age | Crash | Fire |
|---|---|---|---|---|
| Electrical System | 4 yrs | — | — |
What else in this class
Same vehicle class as the BMW 328iS, so the comparison is fair — an estate against an estate, not against a coupé. These 6 share its class; open any of them to see its own build years and failure ages side by side with the 328iS.
| Same class as the 328iS | Complaints on record | Recall campaigns | Years built |
|---|---|---|---|
| Honda Civic | 413 | 1981–2026 | |
| Ford Mustang | 312 | 1981–2026 | |
| BMW M3 | 78 | 1988–2026 | |
| Nissan GT-R | 9 | 2009–2026 | |
| Chevrolet Camaro | 191 | 1981–2026 | |
| Toyota Supra | 35 | 1981–2026 |
These are totals, not rates: a model that sold in millions collects more of both. Open one to see its complaints per production run — the figure this site is built on.
Good year or bad year — the VIN settles it.
- Check any VIN against complaints for its exact build year and plant
- Exact value for that car, adjusted for its mileage
- Full research report as a PDF you can hand to a mechanic
- Alerts if a recall lands on a car in your garage
- No ads, on every page
- No ads, no tracking — and much more
How we measure it
Reliability scores usually arrive as a number out of five with no working shown. The BMW 328iS figure here comes out of 1 individual reports, and here is exactly how they were turned into a rate — two steps in it are arguable and you should be able to argue with them.
Rate, not total. Volume alone would decide the ranking, so we divide by the number of production runs — the distinct first-eleven-character VIN prefixes on record. The BMW 328iS alone splits into 1 runs carrying 1 complaints — 1 per run against 3.72 for the market.
Age, not year. Incident date minus model year gives the age at failure, which is what the warranty question turns on. It is why our «worst year» rankings exclude anything built in the last 6 years — those cars simply have not had time to break yet.
What this is not. Filing with a federal regulator takes effort, so what you see are faults someone judged serious — not scratched paint, not running costs, not how nice the car is to live with. For the BMW 328iS the file runs from 1996 to 1996, so the older years carry a full life of reports and the newest carry almost none.
Frequently asked questions
Is the BMW 328iS reliable?
It draws 1 complaints per production run against 3.72 for the average car, so better than typical. Failures cluster around 4 years of age.
What are the best and worst years for the 328iS?
Not enough model years with sufficient history to rank.
How long does a 328iS last?
Complaints reach their halfway point at 4 years. That is when faults start being reported in volume, not when the car stops — but it is the point at which ownership starts costing money.
Will the warranty cover it?
Basic cover is 4 years / 50,000 miles, and 0% of reported failures fall inside it. The rest are yours.
What fails most often?
Electrical System with 1 complaints, typically at 4 years of age.