Page 173 of the UK manual tells you all about torque settings and tyre dimension but sometimes it’s a pain to find so I thought I’d add it on here as well and hope the search engines pick this up.
What do I need to check the torque of my wheel nuts?
129 lb. ft (175 Nm) is the correct setting and mine were nowhere near that, make sure this is checked when the car goes in for service/tyre change etc or do what I just did & do it yourself by purchasing:
- a 21mm Draper Expert Hi-Torq® Wheel Nut Socket for £14 from a local store, however, in hindsight I should have purchased this set for £19
- a Halfords Professional Torque Wrench 60-300Nm (with lifetime warranty) for £89.99 or smaller version (40-200Nm) for £10 less
↪ Remember 10% off everything at Halfords for Cycling membership (anyone can get this for reference from https://www.britishcycling.org.uk/ membership for £21) 
Things to remember:
- It is often recommended that you check the torque after driving a few miles after swapping tyres, etc.
- Be careful not to scratch your nice alloys with a non-protected socket set, you can cover your socket in electrical tape of buy one with a plastic cover
