ميكانيكي مركبات الديزل الخفيفة (أوالمركبات ذات محركات الديزل الخفيفة)

Diesel mechanics are responsible for the maintenance and repair of diesel-powered vehicles. Their duties include running diagnostic tests on vehicles, test driving vehicles to gauge performance and maintaining detailed records of the vehicles they have serviced.

https://www.betterteam.com/diesel-mechanic-job-description

Heavy diesel mechanics specialise in working with heavy vehicles and machinery, such as busses, trucks, trailers, and earthmoving and mining machinery; and have more experience and expertise to deal with these vehicles than a regular mechanic.

https://ksmobiledieselservice.com/what-is-a-heavy-diesel-mec...

What is a light diesel mechanic?
As a light vehicle mechanic, your day will involve mechanical repairs to petrol and diesel vehicles.

https://ksmobiledieselservice.com/what-is-a-heavy-diesel-mec...