Job Description
"Looking for an automobile technician for four-wheeler service. Only interested people should call."
Suggested Rephrasing Options
If you plan to post this advertisement, here are a few clearer ways to format it:
Professional / Formal:
"Automobile technician position available for four-wheeler service. Only serious and experienced candidates should contact us."
Short / Classified Style:
"Four-wheeler service technician wanted. Interested candidates please call."