FRENES

Mercedes M-Classe W166 PCD

2012–2015
VERIFIED
⌀66.6
PCD5x112
Centre bore66.6 mm
Offset (ET)ET53
Fixing typeM14x1.50
Tightening torque150 Nm
Original tyres235/65R17
Hub centric rings 66.6 mm → Wheel spacers 5x112(partner link) Change PCD (PCD adapter)(partner link) Sheet for your mechanic

Fitting wheels on a Mercedes M-Classe W166

A Mercedes M-Classe W166 (2012–2015) uses a 5x112 PCD and a centre bore of 66.6 mm. Any wheel must match the vehicle's PCD exactly: there is no tolerance, unless you use a PCD adapter.

  • PCD: 5x112 required. See all vehicles with 5x112.
  • Centre bore: the wheel must have a centre bore of 66.6 mm or more. If it is larger (as with most aftermarket wheels), add a hub centric ring wheel centre bore → 66.6 mm.
  • Offset: the original is ET53. Compare your future wheel with the offset calculator (your vehicle is already selected) to see how many millimetres further in or out it will sit.
  • Fixings: thread M14x1.50, tightened to 150 Nm. The nuts or bolts must have the same seat (conical, spherical or flat) as the wheel.
  • Tyres: original fitment is 235/65R17. For another size, check the diameter difference with the equivalence calculator (under 3 % recommended).

Vehicles with the same PCD and centre bore

Same 5x112 PCD and same 66.6 mm centre bore: wheels from these vehicles bolt on and centre on a Mercedes M-Classe W166 without rings. Offset, width, diameter and caliper clearance still need checking.

Mercedes E-Classe W214 from 2023 Mercedes EQE from 2022 Mercedes C-Classe 206 from 2021 Mercedes EQA from 2021 Mercedes EQB from 2021 Mercedes EQS from 2021 Mercedes EQV from 2020 Mercedes EQC from 2019 Mercedes GLB-Classe from 2019 Mercedes A-Classe W177 from 2018 Mercedes E-Classe W213 2017–2023 Mercedes Metris 2016–2025 Mercedes SLC-Classe 2016–2020 Mercedes GLC-Classe 17 inch from 2015 Mercedes GLC-Classe 18 inch from 2015 Mercedes GLE-Classe 18 inch from 2015

Will wheels from another vehicle fit your M-Classe W166?

Choose the vehicle the wheels come from: we compare the hub, then each original wheel to the millimetre.

Frequently asked questions

What is the PCD of a Mercedes M-Classe W166?

A Mercedes M-Classe W166 (2012–2015) has a PCD of 5x112: 5 studs or bolts spaced around a circle 112 mm in diameter.

Does a Mercedes M-Classe W166 need a hub centric ring?

The centre bore (hub diameter) of a Mercedes M-Classe W166 is 66.6 mm. A wheel with a larger centre bore is fitted with a hub centric ring that brings it down to the hub diameter. A wheel with a smaller centre bore cannot be fitted.

What offset (ET) for a Mercedes M-Classe W166?

The recorded original offset is ET53. A lower ET pushes the wheel outwards, a higher ET pulls it inwards: check wheel well and caliper clearance before making any change.

What tightening torque for the wheels of a Mercedes M-Classe W166?

The specified tightening torque is 150 Nm for M14x1.50 fixings. Tighten in a criss-cross pattern with a torque wrench and check the tightness again after about fifty kilometres.

Which vehicles have the same PCD as a Mercedes M-Classe W166?

With the same PCD (5x112) and the same centre bore (66.6 mm), these include: Mercedes E-Classe W214, Mercedes EQE, Mercedes C-Classe 206, Mercedes EQA. Offset, width and rim diameter still need checking for each vehicle.

Does a value look wrong, or is a version missing? Let us know, we check every report.