Mercedes-AMG A45 S Tyre & Wheel Fitment Guide
The Mercedes-AMG A45 S is one of the most powerful hot hatches ever built. With 421 horsepower from a 2.0L turbocharged engine and AMG Performance 4MATIC+ AWD, the A45 S requires high-performance tyres and wheels to maximise grip and safety.
Choosing the correct tyre size and wheel specification ensures:
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Proper handling performance
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Accurate speedometer readings
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Correct AWD system operation
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Safe wheel mounting torque
Below is a complete factory wheel and tyre specification guide.
Mercedes-AMG A45 S Factory Wheel Specifications
| Specification | Data |
|---|---|
| Bolt Pattern (PCD) | 5x112 |
| Centre Bore | 66.6 mm |
| Wheel Nut Type | Ball Seat |
| Wheel Torque | 130 Nm |
| Stud Size | M14 x 1.5 |
Mercedes-AMG A45 S Factory Rim Sizes
| Wheel Size | Offset (ET) | Notes |
|---|---|---|
| 18x8.0 ET40 | Standard base wheel | |
| 19x8.0 ET40 | AMG Performance wheel | |
| 19x8.5 ET46 | Optional AMG forged wheels | Staggered tires but wheel are square set |
Mercedes-AMG A45 S Factory Tyre Sizes
18 Inch Setup
| Tyre Size | Position |
|---|---|
| 235/40R18 | Front & Rear |
19 Inch Setup (Most Common)
| Tyre Size | Position |
|---|---|
|
255/35R19 (front) 235/35R19 (rear) |
Front & Rear staggered |
Performance Tyre Recommendations
For the Mercedes-AMG A45 S, high-performance tyres are recommended to match the vehicle’s power and handling.
Ultra High Performance Tyres
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Michelin Pilot Sport 5
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Michelin Pilot Sport 4S
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Continental SportContact 7
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Yokohama Advan AD09
Comfortable Performance Tyres
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Continental MaxContact MC7
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Michelin Primacy 4+
These tyres provide excellent balance between grip, safety and everyday usability.
Can You Upgrade Tyre Size on Mercedes-AMG A45 S?
Many owners upgrade their tyre width for better grip.
Common upgrade sizes include:
| Upgrade Size | Wheel |
|---|---|
| 255/35R19 | 19 inch performance setup |
| 265/35R19 | Track-focused setup |
However, clearance and offset must be checked before upgrading.
Wheel Torque Specification
Correct wheel torque is essential to ensure safety.
Recommended torque for Mercedes-AMG A45 S wheel bolts:
130 Nm
Always tighten bolts in a star pattern and re-torque after 50-100 km of driving.
Centre Bore Information
The Mercedes-AMG A45 S uses a 66.6 mm hub centre bore.
If using aftermarket wheels, ensure:
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Wheels match the hub size
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Or hub-centric rings are installed
This prevents vibration at high speeds.
Choosing the Right Tyres for Mercedes-AMG A45 S
When selecting tyres, consider:
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Driving style
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Road conditions
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Noise comfort
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Wet grip performance
Performance tyres such as Michelin PS4S or Continental SportContact series provide the best results for spirited driving.
Expert Advice from Autosport Tyreworld
At Autosport Tyreworld, we help AMG owners select the perfect tyres and wheels for their vehicles.
Services include:
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Performance tyre upgrades
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Wheel and tyre packages
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Wheel alignment
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TPMS service
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Track-ready tyre setup
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