Tow truck drivers on Wednesday demonstrated against the Retail Motor Industry (RMI) management in Randburg, north of Johannesburg.
Members from the South African Motor Body Repairers Association (Sambra) accused RMI of mistreating them and suspending their national director.
Around 100 tow truck drivers revved their vehicles as part of the demonstration.
They drove to the RMI office to hand over a memorandum demanding the re-instatement of their national director. The drivers were also calling for the resignation of RMI CEO Jeff Osborne.
The United Tow Truck Association of South Africa's Andre van der Merwe said they were waiting for a response from their employers.
He said that if RMI failed to respond within 14 days, they would return in large numbers.
Osborne said he would approach the RMI board with a list of demands in a bid to address grievances.