REAL MPG:

BMW 4 Series Convertible (2014 - 2020)

000184
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19–56
Real MPG
37.4
Average

Folding metal roof boosts security and refinement, high-quality interior is packed with technology, softer suspension means a smoother ride than the 4 Series Coupe.

Folding roof robs space from back seats and boot, impressive automatic gearbox isn’t standard on all cars, Apple CarPlay costs extra, and there’s no Android Auto support.

Read the full BMW 4 Series Convertible review

Select engine for more Real MPG information:

Engine Official MPG Real MPG Avg. Real MPG %  
420d 53.3–58.9 mpg 47.4 mpg 85% Submit MPG
420d Automatic 50.4–64.2 mpg 46.2 mpg 81% Submit MPG
420i 41.5–45.6 mpg 27.9 mpg 64% Submit MPG
420i Automatic 38.7–48.7 mpg 33.1 mpg 76% Submit MPG
425d 46.3–54.3 mpg - - Submit MPG
425d Automatic 44.1–56.5 mpg - - Submit MPG
425i 37.7 mpg - - Submit MPG
425i Automatic 35.8 mpg - - Submit MPG
428i 40.4–41.5 mpg 34.7 mpg 85% Submit MPG
428i Automatic 42.2–42.8 mpg 32.7 mpg 77% Submit MPG
430d 46.3 mpg 43.3 mpg 94% Submit MPG
430d Automatic 44.1–51.4 mpg 41.3 mpg 86% Submit MPG
430i 36.2–40.4 mpg 32.1 mpg 84% Submit MPG
430i Automatic 34.4–44.8 mpg 33.0 mpg 83% Submit MPG
435d Automatic 47.9 mpg 41.0 mpg 86% Submit MPG
435d xDrive Automatic 44.1–49.6 mpg 41.0 mpg 88% Submit MPG
435i 32.1–34.9 mpg 23.0 mpg 69% Submit MPG
435i Automatic 32.1–37.7 mpg 31.4 mpg 90% Submit MPG
440i Automatic 36.2–39.2 mpg 32.0 mpg 85% Submit MPG

Read the Honest John review...

  • BMW 4 Series Convertible (2014 - 2020)
    Folding metal roof boosts security and refinement, high-quality interior is packed with technology, softer suspension means a smoother ride than the 4 Series Coupe.

    Rivals

    BMW 4 Series Convertible (2014 - 2020) 37.4 avg
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    MINI Convertible (2016 on) 41.6 avg
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    BMW 4 Series (2013 - 2020) 39.1 avg
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    Audi A5 Cabriolet (2017 on) 35.4 avg
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