The main elements of an essential service are:
- Replace the engine oil using the correct oil as per the manufacturer's specifications.
- Replacing the oil filter.
- Top up all fluids including brake fluid, battery electrolyte, clutch fluid (for manual gearboxes) automatic transmission fluid, power steering fluid, radiator coolant, windscreen washer fluid.
- Brake inspection including brake pads, brake disks, brake shoes and brake drums and handbrake action. Adjusting if necessary.
- Tyre rotation and balance.
- Air conditioning cabin filter or odour elimination treatment.
- A visual inspection of the fuel system, gearbox, transmission, lights, suspension and wipers.
This will help ensure your car is in a safe and reliable condition. This essential service list is an example of what's used in the absence of a manufacturer's logbook list scheduled service.