[s-cars] Is it time to....

[Tony]

...replace the O2 sensor amd spark plugs?

My car is just about to roll over 100000kms (62137miles). I suspect the O2 sensor is the original and probably a good idea to replace that. I understand these are hard to remove. Is it a do it yourself job or to the shop it goes?

Secondly, I replaced the spark plugs when I first purchased the car 2.5 years ago at 55000kms (34175miles). Is it time these were replaced too.? I was thinking of replacing these in the Spring.

TIA.

Tony
06 S6