18-inch forged road and track
- Front and rear
- 18 × 8 inch, ET48 · 235/40 R18
BBS lists the RI-A030 in this size for the W176 A45. It retains the original dimensions; BBS labels it a tuner fitment, so obtain wheel-specific clearance confirmation.
2013–2018 · hatchback
Mercedes-Benz A45 AMG W176 wheel fitment
The W176 A45 uses the same wheel and tyre size on both axles. Factory 18-inch and 19-inch packages provide useful reference points, while the front brake calipers restrict aftermarket wheel choice.
5x112 bolt pattern · 66.6 mm centre bore · Stock wheels: 18 × 8, 19 × 8 inch · Stock tyres: 235/40 R18, 235/35 R19
Updated 2026-10-04 · High source confidence. Check your exact trim and market. How we check specs
Quick specs
| Specification | Value |
|---|---|
| Bolt pattern | |
| Stock tyre sizes | |
| Centre bore | 66.6 mm |
| Fastener and thread | Wheel bolt, M14x1.5 |
| Tightening torque | 130 Nm (confirm in your handbook) |
Stock wheels and tyres
Factory options vary by trim and market. Match your car to the row below and check its tyre placard before using it as a baseline.
| Trim | Axle | Wheel | Tyre |
|---|---|---|---|
| A45 AMG, standard 18-inch | Front and rear | 18 × 8 inch, ET48 | 235/40 R18 |
| A45 AMG, optional 19-inch | Front and rear | 19 × 8 inch, ET48 | 235/35 R19 |
Explained in our guides
Read these before choosing wheels for the A45 AMG: they explain the offset, fitment and hub numbers in this guide.
- Wheel offset explained: choosing ET without guessingUnderstand positive and negative wheel offset, calculate inner clearance and outer position, and choose an ET using measurements from your own car.
- Flush, poke and tucked fitment: measure the whole tyreUnderstand flush, poked and tucked wheels, calculate how width and offset change the look, and check clearance beyond a parked side-on photograph.
- Hub-centric vs lug-centric wheels: choosing hub ringsLearn what hub rings do, how to specify their inner and outer diameters, and why centring, wheel seats and vibration need separate checks.
Popular community setups
Starting points for a build. Read the notes with each setup, especially if your car is lowered or has different brakes.
19-inch wider road setup
- Front and rear
- 19 × 8.5 inch, ET45 · 235/35 R19
Schmidt lists its Drago in this combination for the A45. Check the approval conditions, ride height and arch clearance for the actual car.
Width and offset guidance
Offset range
Check the exact setup
There is no confirmed range for this car yet. Compare a known wheel with your proposed size and measure both sides.
Common width limit
Measure before ordering
A maximum width has not been confirmed. Tyre shape, ride height and alignment all change the available space.
These figures belong to the setups described here. Combining the widest wheel with either end of the offset range does not guarantee a safe fit. For how ET moves the wheel in and out, read wheel offset explained; for how far the tyre can sit out, see flush, poke and tucked fitment.
Clearance notes
- Keep the same tyre size on all four wheels, as in the documented A45 packages.
- The Mercedes handbook gives 130 Nm. The original bolts use spherical seats; some approved aftermarket wheels use conical bolts supplied for that wheel.
- Do not assume an ordinary W176 A-Class wheel clears the A45 brakes.
- The later W177 A45 is outside this guide.
- Check full steering lock and suspension travel with the car loaded. Match wheel load rating, tyre load and speed ratings, fastener seats and brake clearance.
See it on your car.
Upload a photo and start with a look that suits the A45 AMG. Try the wheels, colour and stance before you spend on parts.
An AI preview shows the look. It cannot verify physical fitment.
Run the numbers
These tools start with the A45 AMG, standard 18-inch front size. Choose your own trim or axle in the calculator if it differs.
Questions
What is the W176 A45 bolt pattern?
It is 5x112 with a nominal 66.6 mm bore and M14x1.5 bolts.
Does the A45 have wider rear wheels?
The listed factory W176 A45 packages are square, with the same wheel and tyre sizes front and rear.
What tyres fit the factory 19-inch A45 wheels?
The factory 19x8 ET48 package uses 235/35 R19 tyres.
What wheel size does the Mercedes-Benz A45 AMG W176 use?
Factory wheels are 18 × 8 inch and 19 × 8 inch, depending on trim. The stock table lists the offset for each.
What is the Mercedes-Benz A45 AMG W176 centre bore?
66.6 mm. Aftermarket wheels with a larger bore need hub-centric rings sized to it.
What is the Mercedes-Benz A45 AMG W176 wheel bolt torque?
130 Nm (about 96 lb-ft) for the original bolts. Confirm in your handbook, especially with aftermarket wheels or bolts.
Specs checked against
- Mercedes W176 facelift owner handbook
- GMP A45 wheel approval and fastening specification
- MAK A45 wheel approval
- A45 factory wheel and hub specifications
- BBS Japan W176 A45 applications
- Schmidt Drago W176 A45 package
This guide is a starting point, not a fitment guarantee. Specs can differ by market, trim and previous modifications. Confirm all sizes, clearances and fastener requirements with a qualified wheel and tyre professional before buying or fitting parts.
Related cars
More guides from Mercedes-Benz or cars with the same bolt pattern. A matching pattern alone does not make a wheel interchangeable.