Mercedes SLK-Class wheel fitment — SLK 350 R171
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
Mercedes SLK-Class wheel fitment for the Mercedes SLK 350 R171 (2004–2011): the factory PCD, centre bore and bolt spec, then the aftermarket width and offset window we fit to.
| Bolt pattern (PCD) | 5x112 |
| Centre bore | 66.6 mm |
| Bolt / thread | M12x1.5 (bolts) |
| Wheel-bolt torque | 120 Nm |
| Seat type | radius |
| Factory setup | staggered |
| TPMS | direct |
| Run-flat | Yes |
Aftermarket wheel sizes — read per position:
| Position | Width | Offset |
|---|---|---|
| Front | 7.5J–8.5J | ET22–ET38 |
| Rear (staggered) | 8.5J–10.5J | ET24–ET37 |
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.
Performance
| Variant | Power | 0–62 mph | Top speed |
|---|---|---|---|
| SLK 350 | 272 hp | 5.8 s | 155 mph |
Body styles & production
| Body styles | roadster |
| Produced | 2004–2011 |
Trim levels
Factory colours
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
- Pros: Increased use of high-strength steel for improved torsional rigidity; Faster roof mechanism with increased boot capacity; Introduction of the Airscarf system
- Cons: Limited production figures available, making comprehensive analysis challenging