Posted by Nick Clarke 3 on 08/09/2021 10:02:05:
Posted by Nicholas Wheeler 1 on 08/09/2021 09:47:39:
Damaged locking nuts or lost keys are the biggest reason for not being able to do wheel changes at the side of the road.
I won't have them on any car I own.
I have to disagree – I think the biggest reason is no spare wheel and in some cases no facility for carrying one safely and conveniently – all to bring the weight down and improve fuel consumption test results.
With today's traffic I also suspect that even with a spare on the vehicle there are very few locations where changing a tyre on the drivers side of a vehicle could be done safely without the attendance of breakdown services.
As the purpose of locking wheel nuts is to prevent the theft of wheels even if damaged they are doing their job and an insurance claim for wheel theft may fail if they are removed when supplied as standard with the vehicle (as they have been with the last 6 vehicles I have bought new).
I based that on 16 years as a recovery driver, averaging several roadside wheel changes a week. Once the nut or key is damaged, it needs workshop equipment. Yes, I do know that there are tools that claim to do this easily. I've tried most of them, and they rarely work. They are never easy!
The next biggest reason was that the nuts are too tight for the small wheel braces supplied. That's an easy fix, my 750mm long breaker bar never failed.
Next: customer managed to loosen the nuts, but the wheel won't come off. I like to beat it off from the back with a length of 4×2, after replacing the car's jack with my trolley jack. That's only failed once, and it took several minutes of driving around the car park with the wheel nuts on, but loose, to break the wheel free. Anyone removing a wheel should clean both the hub and the wheel mounting face before refitting. A smear of copper grease is a good idea.
In my 16 years, we had one job for stolen alloy wheels. The car was 10 year old Skoda Fabia. The set of multi-fit slave wheels and adapters that some smooth talking salesman talked my boss into were a very poor investment.
My experience, and that of my colleagues is that locking wheel nuts create far more problems than they ever solve. Most garages agree; the one I use ask about locking wheel nut keys when the car is dropped off, and show the customer that it's in the car before handing it over.
Safe locations: I've been asked that many times. As always, it depends. If you know that your spare is inflated and in good condition(who here has checked theirs in the last six months), you have all the tools and they will work, and you're physically capable of doing the job, then changing and being on your way in <5minutes is much safer than waiting for someone else to do it. If you can't guarantee any of those, then get out of the car, stand in a safe place(which might require some effort) and hope that the car can be moved before it gets hit. If it's in a really unsafe place, the recovery man is trained not to stop!