I am not sure about the numbers you mentioned, but base info is as follows:
Standard plug last for 20k
Platinum for 40k
Iridium for 60-100k (depending on spark plug company).
Befoire buying check the right compatibility that's it.
Check the AC fan and see if its working without AC on (It shudnt)
Then switch on the AC and check again and this time it shud work.
Then switch on music and see if AC fan is working, if now AC fan is getting off the there must be some circuit problem in music and AC fuse or electrical relays. Show to some electrician and ask him to trace the problem and fix it.
i have a very well maintained cx7 which is was bought brand new in 2006. for the past a month or so i have noticed the the stearing wheel has started getting harder to move and now it takes a lot of effort. what could be the problem as i have checked the wheels that are good
thanks