
Mercedes GL-Class wheel fitment — 166
Overview
The Mercedes-Benz GLS (formerly GL-Class) is a full-size luxury crossover SUV produced by Mercedes-Benz since 2006, positioned above the GLE in the marque's SUV lineup. The second generation model (X166), introduced in September 2012 and renamed to GLS in 2016 due to a rebranding initiative, is built on an unibody architecture shared with the GLE. It features efficiency improvements such as start-stop systems and drive-by-wire steering, alongside high-performance variants like the GL63 AMG.
Mercedes GL-Class wheel fitment
Mercedes GL-Class wheel fitment for the Mercedes GL-Class 166 (2013–2016): 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 | M14x1.5 (bolts) |
| Wheel-bolt torque | 140 Nm |
| Seat type | radius |
| Factory setup | staggered |
| TPMS | direct |
| Run-flat | Yes |
Aftermarket wheel sizes — read per position:
| Position | Width | Offset |
|---|---|---|
| Front | 8.5J–11J | ET28–ET62 |
| Rear (staggered) | 9.5J–9.5J | ET31–ET44 |
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.
Engines & drivetrain
| Variant | Engine | Fuel | Power | Drive |
|---|---|---|---|---|
| GL63 AMG | 5.5L V8 petrol bi-turbocharged | petrol | 563 hp | 4Matic |
| GL550 4MATIC | 5.5L V8 petrol bi-turbocharged | petrol | 518 hp | 4Matic |
| GL550 BlueTEC | 3.0L V6 diesel twin-turbocharged | diesel | 313 hp | 4Matic |
| GL500 BlueTEC | 3.0L V6 diesel twin-turbocharged | diesel | 272 hp | 4Matic |
| GL350 BlueTEC | 3.0L V6 diesel turbocharged | diesel | 241 hp | 4Matic |
| GL450 BlueTEC | 3.0L V6 diesel twin-turbocharged | diesel | 241 hp | 4Matic |
Performance
| Variant | Power | 0–62 mph | Top speed |
|---|---|---|---|
| GL550 4MATIC | 518 hp | 4.7 s | 180 mph |
| GL63 AMG | 563 hp | 4.7 s | 180 mph |
Body styles & production
| Body styles | SUV |
| Produced | 2013–2016 |
Trim levels
Factory colours
History & notable variants
The second generation of the Mercedes-Benz GL-Class (X166) was introduced in September 2012 and underwent a facelift in 2016 when it was renamed to GLS. This model saw performance improvements, minor exterior and interior design changes, and the introduction of high-performance variants such as the GL63 AMG.
Reliability & owner notes
- Pros: Luxurious interior, high performance variants, advanced technology features
- Cons: High price point, large size may be impractical for urban driving
- Common issues: No specific reliability issues mentioned