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BMW 3 Series vs Mercedes-Benz E-Class

BMW 3 Series

BMW 3 Series

BMW’s compact executive saloon.

VS
Mercedes-Benz E-Class

Mercedes-Benz E-Class

Mercedes' executive sedan on the MRA platform.

First car
Second car
Pick this one if…

BMW 3 Series

Pick the 3 Series for benchmark handling, efficient engines and a premium cabin in a compact executive sedan.

Best engine: The 320i (petrol) or 320d (diesel).
Read the full guide
Pick this one if…

Mercedes-Benz E-Class

Pick the E-Class for space, comfort and efficient engines in a premium executive sedan.

Best engine: The E 220 d (diesel) or E 200 (petrol) — the sweet spot.
Read the full guide

Performance

B48 320i · Petrol vs M274 E 200 · Petrol

BMW 3 Series Mercedes-Benz E-Class
Power
184 hp
184 hp
Torque
300 Nm
300 Nm
0–100 km/h
7,1 s Winner
7,7 s
Top speed
240 km/h
240 km/h
Power-to-weight
125,2 hp/t Winner
114,6 hp/t
CO₂ emissions (WLTP)
134 g/km Winner
138 g/km
Consumption (WLTP)
5,9 L/100km
5,9 L/100km

Dimensions & space

BMW 3 Series Mercedes-Benz E-Class
Boot
480 L
540 L Winner
Boot (seats folded)
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Wheelbase
2,85 m
2,94 m Winner
Length
4,71 m
4,92 m
Width
1,83 m
1,85 m
Height
1,44 m
1,47 m
Seats
5
5

Powertrain & tech

BMW 3 Series Mercedes-Benz E-Class
Platform CLAR (rear-wheel-drive base) MRA (rear-wheel-drive base, shared with the C-Class W205)
Drive Rear-wheel drive · All-wheel drive Rear-wheel drive · All-wheel drive
Engine family B48 petrol · B47 diesel · plug-in hybrid M274/M264 petrol · OM654 diesel · plug-in hybrid
Fuel Petrol · Diesel · Plug-in hybrid Petrol · Diesel · Plug-in hybrid
Transmission 8-speed automatic (ZF) 9G-TRONIC automatic
Euro standard Euro 6d-TEMP (early) · Euro 6d (later) Euro 6d-TEMP (early) · Euro 6d (later)
LEZ access Euro 6 diesel allowed in the LEZ (Brussels/Antwerp/Ghent) Euro 6 diesel allowed in the LEZ (Brussels/Antwerp/Ghent)

Reliability & watch-outs

Known issues

BMW 3 Series
  • Early iDrive/infotainment quirks
  • DPF on diesels doing mainly short trips
  • Timing chain rare but known on B48
Mercedes-Benz E-Class
  • Early OM654 diesel: rocker arm / camshaft concerns
  • 9G-TRONIC: fluid changes recommended earlier than official intervals
  • AIRMATIC air suspension can leak at high mileage
  • Electronics/software: MBUX and driver-aid glitches (mostly fixed via updates)

Pros

BMW 3 Series
  • Benchmark handling (rear-drive base)
  • Efficient, strong B48/B47 engines
  • Excellent iDrive 7 infotainment
Mercedes-Benz E-Class
  • 540 L boot (Estate: 640–670 L) — roomy for an executive sedan
  • Efficient OM654 2.0 diesel (E 220 d: 194 hp / 400 Nm, ~4.6 L/100 km)
  • MRA rear-wheel-drive platform with optional 4MATIC
  • E 300 e PHEV: 320 hp system output and 700 Nm, company-car friendly

Cons

BMW 3 Series
  • Firm ride on M Sport suspension
  • Rear seat less roomy than some rivals
Mercedes-Benz E-Class
  • OM654 diesel: AdBlue/DPF watch-points with lots of short trips
  • PHEV (E 300 e) shrinks boot space
  • Complex electronics and air suspension need dealer maintenance

Compare specific generations

Belgian taxes & LEZ

Region
Fuel
Euro norm
First registration
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For sale at dealers