Mercedes G400d Tyre & Wheel Specifications

The Mercedes-Benz G400d (W463A) is built for both luxury and serious off-road capability. Choosing the correct tyre size and wheel specifications is critical for maintaining performance, safety, and drivability.

Factory Wheel & Tyre Specifications

Standard Factory Setup (18”)

• Tyre Size: 265/60R18

• Wheel Size: 18x7.5J

• Offset (ET): ET43

• Tyre Type: All-Terrain / Highway Terrain depending on spec

Optional Factory Setup (19”)

• Tyre Size: 275/55R19

• Wheel Size: 19x8.0J

• Offset (ET): ET52

AMG Line / Larger Setup (20”)

• Tyre Size: 275/50R20

• Wheel Size: 20x8.5J

• Offset (ET): ET32

Wheel Fitment Specifications (Critical Data)

• PCD (Bolt Pattern): 5x130

• Centre Bore: 84.1 mm

• Wheel Nut Type: Ball seat (OEM Mercedes)

• Thread Size: M14 x 1.5

Torque Wrench Settings

• Wheel Bolt Torque: 130-180 Nm

Important:

• Always torque in a star pattern

• Re-check torque after 50–100 km

• Avoid over-tightening (common issue on G-Class always refer to your cars model year and trim level)

Recommended Upgrade Tyre Sizes (Popular in Australia)

Mild Upgrade (No Lift Required)

• 265/65R18

• 275/60R18

Aggressive Off-Road Setup

• 285/60R18

• 285/55R20

Maximum Practical (May Require Minor Mods)

• 295/70R18

• 33” equivalent setups

Recommended Tyre Types for G400d

Highway / Comfort

• Michelin Primacy SUV+

• Continental CrossContact LX25 / UC6 SUV

All-Terrain (Best Seller Category)

• Falken Wildpeak AT3W / AT4W

• BFGoodrich KO2 / KO3

• Yokohama Geolandar A/T G015

Performance SUV

• Pirelli Scorpion Zero

• Continental SportContact series

Important Fitment Notes

• The G-Class uses high offset (ET43) — incorrect offset will cause rubbing or poor handling

• Large brake calipers require correct wheel clearance

• Always confirm load rating (G400d is heavy)

• Avoid low-quality parallel-import tyres with incorrect specs

Why Correct Fitment Matters

Incorrect tyre or wheel specifications can result in:

• Speedometer inaccuracies

• Increased fuel consumption

• Suspension wear

• Handling instability

For a premium vehicle like the G400d, proper fitment ensures both safety and performance on-road and off-road.

Available Now at Autosport Tyreworld Adelaide

We supply and fit a full range of tyres and wheels for Mercedes G-Class, including OEM replacements and off-road upgrades.

Locations:

Magill
647 Magill Road, Magill SA 5072
PH: 0452 641 023

Wingfield
411 Grand Junction Road, Wingfield SA 5013
PH: 0433 645 411

Clarence Gardens
911 South Road, Clarence Gardens SA 5039
PH: 0420 299 911