They won’t fit. The PCD is 5x100 for the Polo. A PCD of 5x112 means the bolt holes in the wheel won’t line up with the mounting holes on the wheel hub.
In addition to diameter, wheel width and PCD, you should also consider the following;
- centre bore; the Polo’s centre bore (CB) is 57.1. If you find wheels with a larger centre bore, then you’ll need a set of spigot rings to fit inside the wheel’s centre bore to reduce the CB to 57.1.
- offset (ET); If you choose a wheel with an aggressive offset, you could experience clearance issues and tyres rubbing against the bodywork. There’s a useful offset calculator on the Will They Fit website; inputting your existing and new wheel and tyre details will calculate any clearance issues you may experience;
https://www.willtheyfit.com
- wheel bolts; ensure the wheel bolts are the correct type for the wheels being fitted. The profile of the bolt head on OEM wheel bolts may not be correct for the bolt hole profile of aftermarket wheels.
- wheel load capabilities; the load capability of any wheels should be sufficient to support the weight of the car. If it’s not, then undue stress could be put on the wheels and the could crack or buckle. Fitting wheels with insufficient load capacity is also likely to invalidate your insurance.
- if buying used wheels, ensure they aren’t cracked or buckled, or have had any structural repairs (always ask the seller). If they’re advertised as OEM wheels, always check the identification marks on the reverse side of the spokes for OEM part number, size and offset information, wheel manufacturer’s name, vehicle manufacturer’s logo and TUV, ABE, JWL (or similar) certification mark, so check for this information.
- diamond cut wheels (also known as machined or polished); be aware that diamond cut wheels can usually be refurbished a maximum of two times. The refurb process involves cutting a layer of metal off the face of the wheel and more than two refurbs could mean the structural integrity of the wheel could be compromised.
- cheap new alloys sold on eBay and similar auction websites; many of these are replicas of OEM alloys or Chinese imports where the quality may be substandard compared to OEM alloys. Additionally, they may not have TUV, ABE, JWL or similar certification, meaning they’ve not been subjected to stringent safety and quality control testing. Wheels manufactured by reputable companies such as BBS, Borbet, Ronal, Oz (there are many others) should have the necessary TUV, ABE or JWL certification.
- fitting different wheels is classed as a vehicle modification for insurance purposes so you need to inform your insurer.