BMW 3 Series vs BMW 5 Series: which is more reliable?
The BMW 5 Series is ahead of the BMW 3 Series on the federal record, 78/100 against 72/100 — a real but narrow gap that a bad model year on either side closes.
The record, side by side
BMW 3 Series
- 11 model years scored
- 2,173 owner complaints on record
- about 10 complaints per year on the road
- 79 recall campaigns, 47 safety-critical
- best year 2013 (87/100) · worst 2011 (31/100)
BMW 5 Series
- 9 model years scored
- 1,898 owner complaints on record
- about 6 complaints per year on the road
- 43 recall campaigns, 19 safety-critical
- best year 2017 (94/100) · worst 2011 (37/100)
Mean score is the average across model years from 2013 on, where both records are comparable. How the score works.
Year by year: 3 Series against 5 Series
The comparison that decides the purchase. A nameplate is not one car — a redesign can move the record sixty points inside two years, and the two nameplates rarely move together.
What owners actually complain about
BMW 3 Series
- Engine — 650 complaints
- Electrical System — 449 complaints
- Engine And Engine Cooling — 315 complaints
BMW 5 Series
- Engine — 502 complaints
- Power Train — 274 complaints
- Electrical System — 272 complaints
Both nameplates have Engine as their largest complaint group, so the choice between them is about how often, not about what.
Years to avoid on each
BMW 3 Series — avoid: 2011, 2014.
BMW 5 Series — avoid: 2011, 2012.
A year scores below 45 on complaints per year of exposure and recall campaigns. Every car’s years to avoid.
What each costs today
A recent used BMW 3 Series prices at about $38,800 and a BMW 5 Series at about $38,800 — they price within $1 of each other, which at this level is the same money, and they return 30.0 against 28.0 MPG combined.
Class-level estimates re-priced to your country, not a valuation of one car. Method.
FAQ
Is the BMW 3 Series or the BMW 5 Series more reliable?
On the NHTSA record the BMW 5 Series scores 78/100 against the BMW 3 Series's 72/100, averaged across every model year we hold. The gap is small enough that the model year matters more than the badge.
Which BMW 3 Series and BMW 5 Series years should I avoid?
BMW 3 Series: 2011, 2014. BMW 5 Series: 2011, 2012. Each of those scores under 45 out of 100 on complaints per year of exposure and recall campaigns.
What goes wrong on the BMW 3 Series and the BMW 5 Series?
The largest complaint group on the BMW 3 Series is Engine (650 complaints); on the BMW 5 Series it is Engine (502).
Is the BMW 3 Series or the BMW 5 Series cheaper to own?
A recent used BMW 3 Series prices at about $38,800 and a BMW 5 Series at about $38,800, before insurance and the maintenance band. Both pages carry the five-year running-cost figure.