Mercedes SLK 350 R171 side profile — Mercedes SLK-Class wheel fitment

Mercedes SLK-Class wheel fitment — SLK 350 R171

By Torque, AIWheelTech vehicle & fitment specialist · 2004–2011
The Mercedes SLK 350 R171 (2004–2011) uses a 5x112 bolt pattern, 66.6 mm centre bore, M12x1.5 bolts torqued to ~120 Nm. It accepts ~7.5J–8.5J wheels at ET22–ET38 front; staggered setups run 8.5J–10.5J rear (ET24–ET37). That is the short version of Mercedes SLK-Class wheel fitment; the full picture is below.

Overview

The R171 SLK was unveiled at the 2004 Geneva Motor Show as the second generation of Mercedes-Benz's compact executive roadster series, succeeding the R170 model. It featured increased use of high-strength steel for enhanced torsional strength and aerodynamic efficiency. The roof mechanism was more compact and operated faster (in 22 seconds compared to 25), increasing boot capacity by 63 liters. Notable features included the introduction of the Airscarf system, which provided neck-level heating through headrests. Its front-end design drew inspiration from Formula One cars.

Mercedes SLK-Class wheel fitment

Start with the hub. The Mercedes SLK 350 R171 spec table gives the bolt pattern and bore; the second table is the aftermarket window for Mercedes SLK-Class wheel fitment.

Bolt pattern (PCD)5x112
Centre bore66.6 mm
Bolt / threadM12x1.5 (bolts)
Wheel-bolt torque120 Nm
Seat typeradius
Factory setupstaggered
TPMSdirect
Run-flatYes

Aftermarket wheel sizes — read per position:

PositionWidthOffset
Front7.5J–8.5JET22–ET38
Rear (staggered)8.5J–10.5JET24–ET37

Go wider and the offset has to rise with it, about 8 to 10 ET per extra 1J, or the wheel pokes past the arch. The fit-check settles the exact offset and any spacer.

Browse wheels that fit a Mercedes SLK-Class →Get them fitted (UK)

Body styles & production

Produced2004–2011

Trim levels

SLK 200SLK 350

Factory colours

Obsidian Black MetallicCopper MetallicDesigno Mysticweiss PearlDesigno Bronze MetallicChablis MetallicPolar WhiteAprikosengelbAlmadinschwarz MetallicBlack Opal MetallicMystic Green MetallicBlack Diamond MetallicCircongruen MicaDesigno Meerblau MetallicGold MetallicMystic Blue PearlDesigno Mocha Black MetallicViolan MetallicVaricolor III MetallicJasper Blue MetallicChalcedonblau Pearl

History & notable variants

The R171 SLK was introduced in 2004 and underwent a facelift in 2008 with new engines and minor exterior changes to celebrate its fifth year of production. This generation marked significant advancements in materials, aerodynamics, and comfort features, solidifying the SLK's position as a premium roadster.

Reliability & owner notes