These can also whine like an over-tight fan-belt just before break-up.
Kia - goodwill, have paid for an entire engine & turbo on a 6 year old one, due to gear failure causing loss of oil pressure. Scrapped the engine and turbo. So if the engine has Kia service history, contact Kia first.

The parts required are:



Remove no.1 bearing cap and machine a 3mm recess for the thrust washer to sit in and machine the washer centre hole to accommodate the spindle (we use a local machine shop):


It should look something like this: