Longevity of any component will always depend on the driving condition and the quality of the part. That being said 5,000 per year so about 45,000 in three years is not too terrible for lower control arm bushings to last. It does sound too soon for the engine mount though.
Are the bushings on the control arm completely gone?
Keep in mind, depending on the brand/type of parts used, they might have warranty left on those parts. That is something your mechanic should be able to answer.
Let me know of any questions or concerns.
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Monday, September 20th, 2021 AT 3:10 PM