Sent my car in to Tan Chong Bt Timah today at 9am.
When I told the Service Advisor (SA) the problems, I was taken aback by his defensive attitude.
I have highlighted in
BLUE the answer the SA gave me when I collected my car :
1. I told him that my air con ws not cold when I set it at 24 degree and he said that I had to set it to 22 degree. He also said that 25 degree is meant to be heater temperature
Ans: Air-con is normal. Need to set thermostat temperature lower nearer to 20 degrees. 
2. I told him that the wing mirror seemed to be loose as I could hear the mirror vibrating when I close my driver door. He immediately shot back that this was due to the blind spot mirror I fitted on my wing mirror. I had done checks and am 100% sure it has nothing to do with the blind spot mirror. This vibration already occured before I fitted thr blind spot mirror.
Ans: Nothing wrong with mirror. Vibration still exists. 
3. Next was the notorious KIAK sound when one closes the boot. Again, he immediately shot back that I could have hit the metal rod with some object. Anyone of who owns a Latio and am of sound mind would know the positionof the metal rod, above the CD changer would deem it impossible for this to happen.
Ans: KIAK sound is gone when I closed my boot at 5:00pm during car collection,
but sound appeared again when I just trie dclosing the boot again at 8:30pm. 
4. Then I told the SA about the numerous bubbles on the window tinting on one of my side windows and requested for tinting on that particular window panel to be redone. I also told him that I am willing to overlook the other 2 side windows which has 2 bubbles on each window. Again, the SA shot back and asked me if the window tinting was done outside. I suspect he needs to have his eyes checked and be prescribed glasses, as there is a ULTRAMAX sticker on my windscreen, clearly indicating that the tinting was a Tan Chong Mtotrs in-house job.
Ans: Nothing done. KIV till next servicing.

I was told that my car would be ready for collection at 3pm. When I arrived at 3pm, I was told that my car was not ready for collection yet. I finally collected it at 5pm, despite asking for my car not to be washed or vacuumed thinking I could collect my car faster.
I am amazed how a simple 1000km oil change could take a total of 8 hours.
I had been very polite during my conversation with this SA, and do not condone such unacceptable bad service from a reputable distributor like tan Chong Motors.
Those who plan to purchase a Nissan, I would strongly urge you to have 2nd thoughts.