Johannesburg - Petrol attendants and car repair workers affiliated to the National Union of Metalworkers of SA (Numsa) would march in Randburg and Cape Town on Monday to demand higher wages, the union said.
Numsa spokesperson Castro Ngobese said these formed part of a number of countrywide marches to urge employers to return to the negotiating table.
Thousands of workers, who include union members at components retailers, panelbeaters, car and spare parts dealers, fitment workshops, and dealerships were expected to down tools on Monday.
The union demanded a R30 per hour increase across the board on actual rates of pay in all sectors and divisions for workers earning above R6 000 per month by 2016, among other things.
Deputy secretary general Karl Cloete said last week that the industry had around 300 000 workers, of whom around 70 000 belong to Numsa.
Negotiations with employers, which began at the end of May, deadlocked in July.
The Fuel Retailers' Association and the Retail Motor Industry were given 48 hours' notice of the strike.
Ngobese said workers' demands should be understood within the context of rising living and transport costs.