BMW 3 Series VII (G20/G21/G28)

BMW 3 Series VII (G20/G21/G28) — Wheel Fitment & Specs

By Torque, AIWheelTech vehicle & fitment specialist · 2018–2026
TL;DR — The BMW 3 Series VII (G20/G21/G28) (2018–2026) uses a 5x112 bolt pattern, 66.6 mm centre bore, M14 x 1.25 bolts torqued to ~140 Nm. It accepts ~6.5J–8.5J wheels at ET12–ET45 front; staggered setups run 8J–9.5J rear (ET29–ET45).

Overview

The seventh generation of the BMW 3 Series range includes the G20 sedan and G21 Touring (station wagon) variants, produced from October 2018 to 2026. Built on the CLAR platform with increased use of high-strength steel and aluminum, it features a MacPherson strut front suspension and multi-link rear suspension for improved handling and ride quality. Compared to its predecessor, the G20 is lighter, longer, and wider while maintaining a 50:50 weight distribution and offering enhanced body rigidity. The model was unveiled at the 2018 Paris Motor Show and went on sale in March 2019.

Wheel fitment

Bolt pattern (PCD)5x112
Centre bore66.6 mm
Bolt / threadM14 x 1.25 (bolts)
Wheel-bolt torque140 Nm
Seat typetapered
Factory setupstaggered
TPMSdirect

Aftermarket wheel sizes — read per position:

PositionWidthOffset
Front6.5J–8.5JET12–ET45
Rear (staggered)8J–9.5JET29–ET45

As a rule, each extra 1J of width wants roughly +8–10 ET to keep the wheel tucked. The exact offset and any spacer are confirmed by the fit-check.

Browse wheels that fit a BMW 3 Series →Get them fitted (UK)

UK popularity & demand

~467,458 BMW 3 Series licensed on UK roads — top 1% of models by volume.

Based on DfT VEH0124 vehicle-parc data (2025), there are approximately 467,458 BMW 3 Series on UK roads, placing it in the top 1% of car models by volume across our fitment database. That makes its wheel fitment a high-demand size to keep in stock — one reason we track its exact spec here.

Source: DfT/DVLA licensed-vehicle statistics (VEH0124), matched to the AIWheelTech fitment database.

Engines & drivetrain

VariantEngineFuelPowerDrive
M340i3.0L S58 turbo petrol I6petrol374 hpxDrive
330d3.0L B57 turbo diesel I6diesel265 hpxDrive
330i2.0L B48 turbo petrol I4petrol258 hpxDrive
320e/330e2.0L B48 turbo petrol I4 + electric motor252 hpxDrive
325Li/330Li2.0L B48 turbo petrol I4petrol184 hpxDrive
320i2.0L B48 turbo petrol I4petrol156 hpxDrive
320Li2.0L B48 turbo petrol I4petrol154 hpxDrive
320d2.0L B47 turbo diesel I4diesel150 hpxDrive

Performance

VariantPower0–62 mphTop speed
M340i374 hp4.1 s155 mph
320e/330e252 hp137 mph

Dimensions

Length4709 mm
Width1827 mm
Height1442 mm
Wheelbase2851 mm
Kerb weight1450 kg

Body styles & production

Body stylesSaloon, Touring
Produced2018–2026

Trim levels

AdvantageSport LineLuxury LineM Sport

Factory colours

Alpinweiss IIIOrient Blue MetallicSantorin Blau IIVelvet Blue MetallicAtlantis MetallicImola RedCarbon Black MetallicBlack Sapphire MetallicKalahari Beige MetallicFrozen Red II Metallic MatteFrozen Silver Metallic MatteFrozen Bronze Metallic MatteAventurinrot III MetallicFrozen Black Metallic MatteJet BlackTurmalin Violet MetallicSilverstone II MetallicSpace Gray MetallicCashmere Silver MetallicMelbourne Red Metallic

History & notable variants

The development of the seventh generation BMW 3 Series began with design proposals by Alexey Kezha, chosen by BMW management in late 2015. It was launched globally from October 2018 onwards, featuring a facelift (LCI) introduced in July 2022 that included updated exterior styling and an interior redesign with the new dual curved display. Notable variants include the M340i and 330e plug-in hybrid models.

Reliability & owner notes