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2004 Mercedes-Benz C320 Sport Coupe Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Mercedes-Benz C320 Sport Coupe wheels? This page gives the 2004 Mercedes-Benz C320 Sport Coupe bolt pattern (5x112), centre bore, factory rim size and the offset range for aftermarket and forged Mercedes-Benz C320 Sport Coupe rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Mercedes-Benz C320 Sport Coupe (2004): 5x112 bolt pattern, 66.6mm center bore. Factory wheels: 16x7.0J F/R. Reference fitment ranges.
Bolt Pattern5x112
Wheel Bolt/NutM14x1.5 Bolt
Center Bore66.6mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year2004
CategoryHatchback Coupe
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 18, 2026. How we verify
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 16x7.0J F/R |
| Flush Fitment | 17x7.5J at ET35 offset |
| Maximum Aggressive | 18x8.0J at ET32 offset |
Forged Wheel Designs for the Mercedes-Benz C320 Sport Coupe
Every design below is forged to order, so it can be machined to the Mercedes-Benz C320 Sport Coupe's 5x112 bolt pattern and 66.6 mm center bore, with the width and offset calculated for your setup.
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How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.
ANKUSI Engineering Expert Advice
The Mercedes-Benz C320 Sport Coupe's chassis tuning assumes a certain amount of rotational mass at each corner. Forging lets ANKUSI cut that mass while matching the factory strength rating, which sharpens turn-in and reduces the energy the brakes have to absorb — a real gain on a coupe platform, not just a styling change.
The Mercedes-Benz C320 Sport Coupe runs a 5x112 bolt pattern, 66.6mm center bore, and a 16x7.0J, front and rear, wheel from the factory. Our Flush Fitment reference is 17x7.5J ET35, which tucks the tire under the fender lip on a stock-height Mercedes-Benz C320 Sport Coupe. Our Maximum Aggressive reference is 18x8.0J ET32 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Mercedes-Benz C320 Sport Coupe OE Wheel Specs
The 2004 Mercedes-Benz C320 Sport Coupe (Hatchback Coupe) uses a 5x112 bolt pattern with a 66.6mm center bore. Factory wheels are 16x7.0J F/R.
Why the factory spec works for most owners:
- Keeps unsprung weight low to preserve the factory handling balance
- Matches the wider, performance-oriented tire sizing typical of this platform
- Maintains clearance for the factory brake package and suspension geometry
- Balances grip with ride comfort for daily and spirited driving
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Mercedes-Benz C320 Sport Coupe (2004) we drill the 5x112 pattern and cut the centre bore to 66.6mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 10,093 vehicles, free to download, CC BY 4.0.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: 16x7.0J ET37 → ~5.46″ backspacing
- Flush: 17x7.5J ET35 → ~5.63″ backspacing
- Max: 18x8.0J ET32 → ~5.76″ backspacing
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact Mercedes-Benz spec, or want a wheel built to a custom offset for your Mercedes-Benz C320 Sport Coupe? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Frequently Asked Questions
What bolt pattern (PCD) does the Mercedes-Benz C320 Sport Coupe use?
The 2004 Mercedes-Benz C320 Sport Coupe uses a 5x112 bolt pattern.
How many lug bolts does the Mercedes-Benz C320 Sport Coupe use?
The Mercedes-Benz C320 Sport Coupe uses a 5-lug bolt pattern (5x112), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Mercedes-Benz C320 Sport Coupe?
The Mercedes-Benz C320 Sport Coupe's center bore is 66.6mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the Mercedes-Benz C320 Sport Coupe?
Factory wheels on the Mercedes-Benz C320 Sport Coupe are 16x7.0J F/R.
What is the biggest wheel size I can fit on my Mercedes-Benz C320 Sport Coupe without rubbing?
The most aggressive fitment we recommend without fender work is 18x8.0J at ET32 offset. Going beyond this typically causes rubbing under compression unless you roll the fenders or add camber correction.
What does a flush wheel fitment look like on the Mercedes-Benz C320 Sport Coupe?
For a flush look with minimal to no rubbing, we recommend 17x7.5J at ET35 offset as a starting point on a stock or mildly lowered Mercedes-Benz C320 Sport Coupe.
Do I need wheel spacers for my Mercedes-Benz C320 Sport Coupe?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
How do I calculate wheel backspacing for my Mercedes-Benz C320 Sport Coupe?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 5.63" of backspacing.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my Mercedes-Benz C320 Sport Coupe?
The Mercedes-Benz C320 Sport Coupe runs the same wheel size front and rear from the factory, so staggered fitment is not required. ANKUSI can still forge a staggered set (wider rear) on request if you want a more aggressive stance.
Wheel Installation Reference: Torque, Thread & TPMS
Thread & Fastener: M14x1.5, ball-seat lug bolt.
Factory Torque Spec: 130 Nm (96 ft-lb). Sedan/coupe platforms (E-Class, CLS, SL and similar) generally use the shorter 27mm bolt at this spec.
TPMS: Vehicles built before the 2008 model year were not federally required to carry factory TPMS in the US, though many manufacturers adopted it earlier; verify whether your specific build has TPMS before ordering sensor-compatible wheels.
Tire Pressure: Always set tire pressure to the value on your vehicle's tire placard (driver's doorjamb or glovebox), not the max PSI printed on the tire sidewall — this is trim- and tire-size-specific and stays the same reference point when you switch to a different wheel and tire combination.
Reference data compiled from published OEM service specifications and cross-checked against independent repair sources; always confirm against your owner's manual or door-jamb placard before installation.