Spark Plug Life?

[DavidF.C280]

Everyone,

Just Curious, I expect to be "Semi" Struck Down on this for not doing it at 60K. but....

ML 320, now has 83K on it. The CEL came on on Monday,

Went to the Shop and they said new MAF Sensor. I have a 100K extended Warranty, so That took care of that.

However they fitted it and said there was still problems, cut the story short they told me the plugs needed changing...and 'shock horror' they were the original plugs "Which should have been done at 60K", and that was also causing the problem with the CEL.

Now Correct me if I am wrong, but isn't recommended change for the plugs on the ML at 100K.

I was planning to do it myself, but well it was in, and I thought may as well get it done anyway. To be honest after reading in another thread that the wires need the special tool to remove, maybe its just as well I got someone else to do it, but thats for another discussion.

So my question, should the plugs need changing earlier that the recommended 100K, or was I on another planet when I read that?

As always ... Many...

A t D h V a A n N k C s E

David