The concept of the "scarfie army" drew inspiration from the success of its Canterbury counterpart.
Otago Polytechnic health and safety manager Terry Buckingham said the experience students gained as volunteers could help them when they applied for jobs.
As part of the pilot project, vehicles belonging to the Cancer Society, the Child Cancer Foundation, Canteen and clients of the Dunedin Methodist Mission were given a full service yesterday.
Automotive engineering students carried out the work under the supervision of staff, and Appco Auto Parts in Dunedin donated the oil and filters for the servicing.
Dunedin Methodist Mission's Charles Pearce said it was a "fantastic" community project.
"We know that car maintenance is often a really low priority for our clients because they are on very limited budgets. And when maintenance doesn't happen, things are more likely to go wrong with vehicles," Mr Pearce said.
The second part of the pilot project will be a coastal clean-up by Otago Institute of Sport and Adventure on October 30.
Once the pilot is complete, it will be evaluated with a view to officially launch the "scarfie army" next year.