This is a known issue with the hydraulic lifters ,
You could talk to the dealer and find out if the lifters need replacing or if its a oil pressure issue .
We had a few in the shop out of warranty , so we did a 15- 20 minute engine flush and after the flush filled with 10W30 Castrol
and this did the trick .
The flush cleaned out the oil channels and lifters internally ,and then they responding quicker to adjust and not click anymore .
Personally i think this is due to the new system of oil changes That the company's are setting ,and they are being done to long and to many miles before being changed .
We have proved that an engine that is changed every 3000 miles do not have this problem ..
Need any follow up help then please get back to me with the reply button, and not the poor or bad service.
This way i can get back to you or suggest another expert if needed.
If i do not get back to you then i may be off line, and when i get back online i will get back to you..
Your deposit does not pay me until the answer is rated in a positive way,
Not rating or a bad rating does not constitute a refund.
If you are not happy or you have sorted out your problem before the answer then please let me know with the reply button .
Kind regards Greg.