Answer engine summary
What should Adelaide drivers know about Mercedes CLA45 S AMG Tyre Size Guide | Wheel Specs, PCD, Offset, Torque Settings Australia?
Adelaide drivers should match tyre choice, wheel fitment and service timing to the vehicle placard, actual driving use and local conditions. Hot SA roads, wet winter braking, Adelaide Hills corners and country touring can all affect tyre wear, grip and comfort, so professional fitment, pressure setup, balancing and wheel alignment matter as much as the tyre product choice itself.
Mercedes-AMG CLA45 S Tyre & Wheel Specification Guide
The Mercedes-AMG CLA45 S is one of the most aggressive compact performance sedans on the market, featuring AMG’s handcrafted turbocharged engine and 4MATIC+ all-wheel drive system. With high performance comes the need for precise tyre and wheel fitment to maintain grip, handling, and safety.
At Autosport Tyreworld, we regularly supply and fit tyres for CLA45 S owners across Adelaide, ensuring correct specifications and performance upgrades.
Factory Tyre Sizes (Mercedes-AMG CLA45 S)
Standard OEM Fitment (Staggered Setup)
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Front: 245/35R19
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Rear: 245/35R19
(Some variants may run square setups depending on market and package)
Optional AMG Performance Package
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Front: 255/35R19
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Rear: 255/35R19
Factory 20-Inch Upgrade (Optional)
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Front: 255/30R20
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Rear: 255/30R20
Factory Wheel (Rim) Specifications
| Specification | Details |
|---|---|
| PCD (Bolt Pattern) | 5x112 |
| Centre Bore | 66.6 mm |
| Wheel Nut Type | Ball Seat (Mercedes OEM) |
| Thread Size | M14 x 1.5 |
OEM Wheel Sizes
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19x9.0J ET52 (common)
Wheel Torque Settings
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Wheel Bolt Torque: 130 Nm
Important:
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Always torque using a calibrated torque wrench
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Re-check torque after 50–100 km
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Avoid over-tightening (common issue on AMG vehicles)
Recommended Tyre Options (Performance Focus)
For the CLA45 S, tyre selection is critical due to the vehicle’s high power output and AWD system.
Max Performance Street
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Michelin Pilot Sport 5
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Continental MaxContact MC7
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Pirelli P Zero (PZ4)
Track / Aggressive Driving
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Michelin Pilot Sport Cup 2
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Yokohama AD09
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Bridgestone Potenza Sport
Balanced Daily Performance
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Continental PremiumContact 7
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Michelin PS4 (where available)
Fitment & Upgrade Notes
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The CLA45 S uses a square setup from factory, allowing tyre rotation
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20-inch upgrades improve aesthetics but reduce ride comfort
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Lower profile tyres increase risk of pothole damage (common in Adelaide roads)
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Always maintain correct load rating and speed rating (Y-rated recommended)
Common Upgrade Fitments (Autosport Tyreworld Recommended)
Street Performance Setup
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19x8.5 +40
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255/35R19 all around
Aggressive Flush Setup
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19x9 +35
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255/35R19 or 265/35R19 (requires clearance check)
20-Inch Show Setup
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20x8.5 +40
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255/30R20
(All upgrades should be test-fitted to avoid rubbing)
Centre Bore & Hub Fitment
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OEM Centre Bore: 66.6 mm
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Aftermarket wheels may require hub-centric rings
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Always ensure hub-centric fitment to avoid vibration at high speed
Important Safety Notes
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Minimum legal tread depth in Australia: 1.6 mm
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For performance vehicles, replacement recommended at 3.0 mm
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Always replace tyres in full sets on AWD vehicles when possible
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Mixing tyre brands or tread patterns can affect 4MATIC system performance
Why Choose Autosport Tyreworld?
We specialise in AMG and European performance vehicles, offering:
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Correct tyre matching for AWD systems
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Premium tyre brands only (no parallel imports unless specified)
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Precision wheel balancing and alignment
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Expert advice on fitment and upgrades
Visit Autosport Tyreworld Adelaide
Magill
647 Magill Road, Magill SA 5072
Phone: 0452 641 023
Wingfield
411 Grand Junction Road, Wingfield SA 5013
Phone: 0433 645 411
Clarence Gardens
911 South Road, Clarence Gardens SA 5039
Phone: 0420 299 911
FAQ
Is Mercedes CLA45 S AMG Tyre Size Guide | Wheel Specs, PCD, Offset, Torque Settings Australia relevant for Adelaide drivers?
Yes, if the advice is matched to the vehicle and how it is driven. City commuting, hills roads, country trips and performance use can all need different tyre and setup priorities.
Should tyre advice include wheel alignment?
Yes. Alignment, balancing and pressure setup are important because even a quality tyre can wear poorly or feel ordinary if the vehicle setup is wrong.
Can Autosport Tyre World help compare tyre options?
Yes. Autosport Tyre World can compare suitable tyres, wheels and service options across Magill, Clarence Gardens and Wingfield, then recommend a setup for the vehicle's actual use.
Helpful Adelaide tyre links
Autosport Tyre World Adelaide locations
For local tyre advice, fitment checks, balancing and wheel alignment in Adelaide, contact Autosport Tyre World across Magill, Clarence Gardens and Wingfield.
TYREPLUS Magill | Autosport Tyre World Magill
647 Magill Road, Magill SA 5072
Phone: 0452 641 023
TYREPLUS Clarence Gardens | Autosport Tyre World Clarence Gardens
911 South Road, Clarence Gardens SA 5039
Phone: 0420 299 911
TYREPLUS Wingfield | Autosport Tyre World Wingfield
411 Grand Junction Road, Wingfield SA 5013
Phone: 0433 645 411
Local ownership check for Mercedes CLA45 S AMG Tyre Size Guide | Wheel Specs, PCD, Offset, Torque Settings Australia
Before choosing tyres or wheels for Mercedes CLA45 S AMG Tyre Size Guide | Wheel Specs, PCD, Offset, Torque Settings Australia, Adelaide drivers should confirm the placard size, current sidewall, load rating and speed rating against the exact vehicle variant. Small differences in trim, brake package, wheel offset or intended load can change what fits correctly and what feels right on the road.
Local use matters as much as the catalogue specification. Daily Magill commuting, school runs, Adelaide Hills corners, hot summer bitumen and wet winter braking all place different demands on grip, comfort, road noise and tyre wear. A professional fitment check helps match the recommendation to the vehicle rather than relying on generic size data.
Autosport Tyre World Magill can inspect tread condition, tyre age, shoulder wear and vibration symptoms at the same time as the quote. If the car shows uneven wear, steering pull or recent suspension changes, wheel alignment and balancing should be checked so the new tyre package performs properly from day one.
- Confirm the placard and existing tyre size before ordering.
- Check load rating, speed rating, wheel offset and brake clearance before changing fitment.
- Inspect pressure, tread depth, sidewalls and alignment if wear looks uneven.
For local help, visit Autosport Tyre World Magill at 647 Magill Road, Magill SA 5072 or call 0452 641 023. The team can compare suitable tyres, wheels, balancing, brake, suspension and mechanical options for South Australian driving.