There is much confusion among some drivers about how often a car needs to be serviced. Is it based on time elapsed since its last service or mileage? Do cars  that are less than three years old need servicing? If your car has just passed  its NCT does this mean it doesn’t need a service? 

Why regular servicing matters

Under no circumstances should you view an NCT test as an alternative to servicing your vehicle, as it is only a basic safety check. A full service is recommended every 12,000 miles or 12 months (whichever happens first). If you use your vehicle for city driving  or it does higher than average mileage (more than 12,000 miles annually) it’s an  idea to supplement the full service with an interim one every six months (or  6,000 miles).

It is a false economy, both in the long and short term, not to have your vehicle serviced regularly. A properly-maintained car is not only more fuel-efficient, but will be safer and more reliable as faults will come to light  at an earlier stage and are less likely to result in a breakdown. It will also  limit the amount of wear and tear on your car, which means it will hold its  value when you come to sell it. Vehicles with a full service history typically  attract more buyers and higher prices. If you own a prestige model, such as a  BMW or Mercedes, a full manufacturer service history could add between €1,000  and €1,500 to a vehicle’s value. 

What a service includes

There is no such thing as a standard service – it varies widely and depends on the make and model of the car. Check in your vehicle handbook for its servicing requirements. Remember to ask for extras that may not be in the handbook such as replacing anti-freeze and  brake fluid every couple of years.


As a general rule, the service should include the routine lubrication of all working parts, hinges and catches, an oil change, oil filter change, new spark plugs (petrol models), new fuel filter (diesel models). In addition, the garage should carry out safety checks on ball joints, tyres, steering, suspension, ensure all lights are in good working order, the fan belt tension, fluid levels (for example, clutch fluid) are correct and there are no leaks. The vehicle’s general safety should also be assessed, such as seat belts and wipers.


An interim service is much more basic and generally involves an oil and oil filter change, and new spark plugs or fuel filter. 

Choosing the right garage

To ensure your vehicle undergoes a professional service, verify that the garage is VAT-registered and that the parts and fluids are the genuine manufacturer’s products for your car. To avoid misunderstandings with the garage or an unexpectedly high bill, be very  clear with the garage that you do not give prior consent to any additional work  that needs to be undertaken. Ask them to contact you in order to receive authorisation if anything extra is needed other than what the service price covers. Ask for a detailed invoice, which includes all parts, labour and VAT. 

New cars and warranties

In 2004 the block exemption lifted the servicing restrictions that tied consumers into servicing by garages belonging to the manufacturer’s franchised dealer network, giving owners  the freedom to choose where to have their vehicle serviced. However, the service  must be carried out to the car manufacturer’s recommendations. Check the  warranty as some extensions have conditions, for example there may be a clause  stipulating a service at specific mileage intervals.