did the steering wheel move in your hands? or did the car suddenly pitch into a spin?
if its the latter then I'd start by checking the state of the suspension bushes and bearing
To check for worn suspension joints - jack the car up so the wheel is off the ground (you’ll need to do this for all 4 corners) and shake the tyre from top to bottom and from side to side (with someone holding the steering wheel on the front) there should be no play in either direction. Any play in 1 direction will usually require a joint to be replaced, if there’s play in both directions then the wheel bearing may be at fault. If theres play only up and down its the strut top mount - to find this one you have to shake the suspension strut it self up and down with the wheel off the ground - so you may need to remove the wheel to check this one.
Now with the car jacked up on that side with the wheel about 2 inches off the ground use a steel bar under the wheel and lever the wheel up and down slightly, you should be able to look at the end of the axle and see if the suspension arm is moving up and down separately to the axle.If so replace the bush
its worth topping up the brake fluid but this won't be the cause of the issue
my previous reply was generally about jacking the car up so you can wiggle all of the wheels up & down and from left to right - feeling for any play anywhere
if its something like a worn balljoint then its about £40 in parts and an hours labour to replace
I'd expect it to be something like this on 1 corner bu probably not more than 1
So I'd expect the cost of repair to be reasonable
also ask about having the suspension 4 wheel aligned to ensure that the geometry is set correctly
brake fluid is pretty universal between makes and models and Kia is no exception I'd use dot 4 fluid as a minimum specification
and yes by all means check the other fluid levels - bear in mind that power steering fluid must be checked after the car has been driven for about 20 mins to ensure its fully warm
this is because it expands a great deal with temperature
anti-freeze needs to be the 'red' OAT type also known as G30 spec
such as this
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