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2008 BMW

128i Convertible

Auto (S6), 6 cyl, 3.0 L

BMW 128i: best and worst years
2008 BMW 128i Convertible (photo 1 of 6)

Photo may show a different model year; you're viewing the 2008.

PhotoCalreyn88CC BY-SA 4.0via Wikimedia Commons

Reported problems NHTSA record NHTSA owner complaints, model year

  • AIR BAGS30%
  • SEAT BELTS13%
  • ELECTRICAL SYSTEM9%
  • ENGINE AND ENGINE COOLING9%
  • STRUCTURE9%
  • ENGINE4%

Source: NHTSA owner complaints, 23 total.

BMW 128i: best and worst years

Warranty manufacturer terms, by make

Basic
4 yr / 50k mi
Powertrain
4 yr / 50k mi
Roadside assistance
4 yr
Maintenance
3 yr / 36k mi
EV battery
8 yr / 100k mi

Source: bmwusaservice.com as of 2026-06

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.