Mercedes M-Class 166 side profile — Mercedes M-Class wheel fitment

Mercedes M-Class wheel fitment — 166

By Torque, AIWheelTech vehicle & fitment specialist · 2012–2015
Mercedes M-Class wheel fitment at a glance — The Mercedes M-Class 166 (2012–2015) uses a 5x112 bolt pattern, 66.6 mm centre bore, M14x1.5 bolts torqued to ~140 Nm. It accepts ~9J–11J wheels at ET37–ET56 front; staggered setups run 9.5J–11J rear (ET45–ET50).

Overview

The Mercedes-Benz M-Class (W166) is a mid-size luxury SUV produced by Mercedes-Benz from 2011 to 2015. It was the third generation of the M-Class, which was renamed GLE in 2015 with minor styling changes and platform updates. The W166 model moved away from the body-on-frame construction used in previous generations to a unibody design, aligning it more closely with Mercedes-Benz's sedan lineup. This transition aimed at improving ride quality and handling while maintaining its off-road capabilities. Production initially took place in Stuttgart for European and Australian markets before moving entirely to Vance, Alabama, USA, in 2015.

Mercedes M-Class wheel fitment

Mercedes M-Class wheel fitment for the Mercedes M-Class 166 (2012–2015): the factory PCD, centre bore and bolt spec, then the aftermarket width and offset window we fit to.

Bolt pattern (PCD)5x112
Centre bore66.6 mm
Bolt / threadM14x1.5 (bolts)
Wheel-bolt torque140 Nm
Seat typeradius
Factory setupstaggered
TPMSdirect
Run-flatYes

Aftermarket wheel sizes — read per position:

PositionWidthOffset
Front9J–11JET37–ET56
Rear (staggered)9.5J–11JET45–ET50

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 Mercedes M-Class →Get them fitted (UK)

Engines & drivetrain

VariantEngineFuelPowerDrive
ML 55 AMG (early)5.4L V8petrol340 hp4Matic
ML 55 AMG (late)5.4L V8petrol340 hp4Matic
ML 5005.0L V8petrol287 hp4Matic
ML 4304.3L V8petrol268 hp4Matic
ML 400 CDI3.9L V8 turbo dieseldiesel247 hp4Matic
ML 3503.7L V6petrol179 hp4Matic
ML 270 CDI (early)2.7L inline-5 turbo dieseldiesel158 hp4Matic
ML 270 CDI (late)2.7L inline-5 turbo dieseldiesel158 hp4Matic
ML 320 (early)3.2L V6petrol157 hp4Matic
ML 320 (late)3.2L V6petrol157 hp4Matic
ML 2302.3L inline-4petrol147 hp4Matic

Performance

VariantPower0–62 mphTop speed
ML 230147 hp12.8 s112 mph
ML 320 (early)157 hp9.5 s112 mph
ML 320 (late)157 hp9 s118 mph
ML 350179 hp8.7 s128 mph
ML 430268 hp8.4 s129 mph
ML 500287 hp7.7 s138 mph
ML 55 AMG (early)340 hp6.9 s144 mph
ML 55 AMG (late)340 hp6.7 s145 mph
ML 270 CDI (early)158 hp11.7 s115 mph
ML 270 CDI (late)158 hp12.2 s115 mph
ML 400 CDI247 hp8.1 s132 mph

Dimensions

Length180 mm
Width72 mm
Height69 mm
Wheelbase111 mm
Kerb weight4614 kg

Body styles & production

Body stylesSUV
Produced2012–2015

Trim levels

AMG LineSport

Factory colours

Polar WhiteDiamond White TricoatBlackBrilliant Silver MetallicCavansite Blue MetallicIridium Silver MetallicPalladium Silver MetallicSteel Gray MetallicCalcite WhiteObsidian Black MetallicAlabaster WhiteHyacinth Red/Designo Cardinal MetallicDiamond Silver MetallicPewter Silver MetallicCapri Blue MetallicDesigno Orange PolyVerde Brook MetallicCypress GreenBlack Opal PearlCinnabar Red Pearl

History & notable variants

The W166 generation of the M-Class was introduced in 2011 as a significant update over the previous model (W164). It featured a new unibody platform for improved ride quality and handling. Notable changes included revised styling, enhanced interior technology, and an expanded range of engine options to meet growing market demands. The W166 was built in Stuttgart until 2015 when production shifted entirely to the Vance plant in Alabama with minor updates.

Reliability & owner notes