Real MPG: BMW 4 Series Convertible (2014 - 2020) 425d

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46.3–54.3

Official MPG
(NEDC)

Real MPG

Real MPG
Average

of Official MPG
(NEDC)

More engines available for this model:

Engine	Official MPG (NEDC)	Official MPG (WLTP)	Real MPG Avg.	Real MPG %
420d	53.3–58.9 mpg	-	47.0 mpg	84%	Submit
420d Automatic	50.4–64.2 mpg	-	46.3 mpg	81%	Submit
420i	41.5–45.6 mpg	-	29.8 mpg	68%	Submit
420i Automatic	38.7–48.7 mpg	-	33.1 mpg	76%	Submit
425d Automatic	44.1–56.5 mpg	-	-	-	Submit
425i	37.7 mpg	-	-	-	Submit
425i Automatic	35.8 mpg	-	-	-	Submit
428i	40.4–41.5 mpg	-	34.0 mpg	83%	Submit
428i Automatic	42.2–42.8 mpg	-	32.7 mpg	77%	Submit
430d	46.3 mpg	-	43.3 mpg	94%	Submit
430d Automatic	44.1–51.4 mpg	-	40.5 mpg	85%	Submit
430i	36.2–40.4 mpg	-	32.4 mpg	85%	Submit
430i Automatic	34.4–44.8 mpg	-	33.2 mpg	84%	Submit
435d Automatic	47.9 mpg	-	40.0 mpg	83%	Submit
435d xDrive Automatic	44.1–49.6 mpg	-	40.3 mpg	86%	Submit
435i	32.1–34.9 mpg	-	23.0 mpg	69%	Submit
435i Automatic	32.1–37.7 mpg	-	31.4 mpg	90%	Submit
440i Automatic	36.2–39.2 mpg	-	32.6 mpg	87%	Submit

*Based on WLTP MPG values

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)	37.1	avg mpg
Audi A3 Cabriolet (2014 - 2020)	43.7	avg mpg
Jaguar F-Type Convertible (2013 on)	27.5	avg mpg
Mazda MX-5 (2015 on)	45.4	avg mpg