BMW Z4 wheel fitment — I E85
Overview
The first generation of the BMW Z4, designated as E85 for the roadster and E86 for the coupe, was produced from July 2002 to December 2008. It succeeded the BMW Z3 and is part of the BMW Z Series lineup. The initial models were in the roadster body style with a straight-six engine option, while the coupé variant was introduced later in 2006. Both versions were manufactured at the Plant Spartanburg in Greer, South Carolina. This generation saw significant changes from its predecessor, including an increase in size and stiffer chassis design.
BMW Z4 wheel fitment
Start with the hub. The BMW Z4 I (E85) spec table gives the bolt pattern and bore; the second table is the aftermarket window for BMW Z4 wheel fitment.
| Bolt pattern (PCD) | 5x120 |
| Centre bore | 72.6 mm |
| Bolt / thread | M12 x 1.5 (bolts) |
| Wheel-bolt torque | 115 Nm |
| Seat type | tapered |
| Factory setup | staggered |
| TPMS | direct |
Aftermarket wheel sizes — read per position:
| Position | Width | Offset |
|---|---|---|
| Front | 7J–8.5J | ET33–ET45 |
| Rear (staggered) | 8.5J–9.5J | ET34–ET45 |
As a rule, each extra 1J of width wants roughly +8 to 10 ET to keep the wheel tucked. The exact offset and any spacer are confirmed by the fit-check.
UK popularity & demand
Based on DfT VEH0124 vehicle-parc data (2025), there are approximately 32,081 BMW Z4 on UK roads, placing it in the top 8% of car models by volume across our fitment database.
That makes BMW Z4 wheel fitment a high-demand spec to keep in stock. It is one reason we track it here.
Source: DfT/DVLA licensed-vehicle statistics (VEH0124), matched to the AIWheelTech fitment database.
Engines & drivetrain
| Variant | Engine | Fuel | Power | Drive, years |
|---|---|---|---|---|
| 2.0i | 1,995 cc, N46B20 | 110 kW (150 PS) | 2005 to 2008 | |
| 2.2i | 2,171 cc, M54B22 | 125 kW (170 PS) | 2003 to 2005 | |
| 2.5i | 2,497 cc, N52B25 | 130 kW (177 PS) | 2006 to 2008 | |
| 2.5i | 2,494 cc, M54B25 | 141 kW (192 PS) | 2003 to 2006 | |
| 2.5si | 2,497 cc, N52B25 | 160 kW (218 PS) | 2006 to 2008 | |
| 3.0i | 2,979 cc, M54B30 | 170 kW (231 PS) | 2002 to 2005 | |
| 3.0si | 2,996 cc, N52B30 | 195 kW (265 PS) | 2006 to 2008 | |
| M 3.2i | 3,246 cc, S54B32 | 252 kW (343 PS) | 2006 to 2008 | |
| Alpina 3.3 | 3,346 cc, E5/2 | 221 kW (300 PS) | 2003 to 2005 |
Source: BMW E85, de.wikipedia.org.
Performance
| Variant | Power | 0 to 62 mph (0 to 100 km/h) | Top speed |
|---|---|---|---|
| 2.0i | 110 kW (150 PS) | 8.2 s | 220 km/h (137 mph) |
| 2.2i | 125 kW (170 PS) | 7.7 s | 225 km/h (140 mph) |
| 2.5i | 130 kW (177 PS) | 7.1 s | 229 km/h (142 mph) |
| 2.5i | 141 kW (192 PS) | 7 s | 235 km/h (146 mph) |
| 2.5si | 160 kW (218 PS) | 6.5 s | 240 km/h (149 mph) |
| 3.0i | 170 kW (231 PS) | 5.9 s | 250 km/h (155 mph) |
| 3.0si | 195 kW (265 PS) | 5.7 s | 250 km/h (155 mph) |
| M 3.2i | 252 kW (343 PS) | 5 s | 250 km/h (155 mph) |
| Alpina 3.3 | 221 kW (300 PS) | 5.3 s | 265 to 270 km/h (165 to 168 mph) |
Source: BMW E85, de.wikipedia.org.
Dimensions
| Length | 4,091 to 4,113 mm |
| Width | 1,781 mm |
| Height | 1,268 to 1,302 mm |
| Wheelbase | 2,495 mm |
| Kerb weight | 1,220 to 1,420 kg |
Source: BMW E85, de.wikipedia.org.
Body styles & production
| Body styles | 2-door roadster, 2-door coupé |
| Produced | 2002–2005 |
| Units produced | 197,950 |
Trim levels
Factory colours
History & notable variants
The E85 roadster was designed by Anders Warming between mid-1998 to summer 1999, while Tomasz Sycha handled the coupé variant's design. The Z4 made its debut at the Paris Motor Show in 2002 and went on sale as a 2003 model year vehicle in North America, with European sales beginning in March 2003. Notable special models included the Alpina Roadster S (2004-2006) and the Concept Coupé Mille Miglia (2006). The Z4 underwent a facelift in 2006, introducing 'si' model variants and discontinuing the 2.2i model.
Reliability & owner notes
- Pros: Stiff chassis and improved handling over the Z3; Wide range of engine options including powerful straight-six engines; Available in both roadster and coupé body styles
- Cons: Limited trunk space compared to other sports cars; Some models had high fuel consumption