2007 4.8 x5 rough idle, check engine light, Shaking!!UPDATED

[DANTENING]

Hello guys, hope you all have a nice day! So long story short:

My car: 2007 4.8 x5 with only 62,000 km. Bought it certified and it still has the certified warranty coverage. I drive it daily for about 35 km one way, roughly about 70 km total. Yes I use Shell V Power only and just changed engine oil about 3,500 km ago. I do oil change every 6,500 km.

This morning when I started the engine, it was shaking so bad that cased the entire car to shake with it! The check engine light blinked for couple times and then stayed on. I had to step out of the car cause I really thought the engine would explode. After 1 min warm up, it still sounded like a Heavy Bike "TU TU TU TU" instead of the usual smoothness in the summer. I drove it for a bit and still the problem was there.

During the past two months, I've been hearing loud ticking sound from the engine when it was started after an over night parking, loud and clear, sounds like lifters, but I'm not sure.

Now the check engine light is on and I'm going to stealer tomorrow. I just want to know if there is someone who had the same problem with his/her X5 4.8? What was the solution? I thought about spark plugs, but would it be too soon to change the spark plugs? And what are other possible reasons/solution for this problem? Thank you very much for your input.