expression, kuru verb (irregular)
to show one's age; to wear out; to start falling apart
Used for people, machines, or systems that are deteriorating due to age or heavy use. Often implies creaking, rattling, or loss of function. The phrase is a fixed expression using ガタ (onomatopoeia for rattling) and 来る.
See also: ガタガタ
この車もだいぶガタが来てるね。
This car is really starting to show its age, isn't it?
Lately, my body is starting to wear out in various places.