My Superb is about 4.5 years old and has done an embarrassingly small mileage (about 5000). It is now due a service and the Skoda garage asked whether I wanted the spark plugs changing at what seemed to me to be a pretty steep cost. He did say that they recommend changing them at 4 years or 40,000 miles but I just wonder what people have found in practice. Personally I can't see that it would be necessary but what do other people think?

Don't skimp on maintenance

Nah, not yet

In summary - they don't 'need' changing just because of time despite very very low mileage, but if you're not going to do it, don't do it on the basis of saving money.

Might be worth pulling one to look at it and see if lots of short journeys running rich has caused any issues but its not likely.

I forgot to change mine until about 65,000 miles. When I took them out there was no visible electrode wear. Apart from a slight difference in colour they looked the same as the new ones. I could not detect any change in engine running with the new ones. They wear with mileage, not with calendar time. So changing at 5,000 would only be the thing to do for someone with money to chuck away. In which case feel free to chuck it my way!

My 2014 fabia 1.4 stage 1 vrs (200 bhp) is extremely sensitive to wearing /worn plugs, I have taken to renewing plugs every 12 months to avoid taking out a coil