Written by the workshop at Alan Dawson Autoworks & Recovery · Updated 31 July 2026
What does a full car service include?
An oil and filter change, replacement of air, fuel and pollen filters as needed, a brake inspection, tyre checks, fluid top-ups, a battery test and a diagnostic scan, plus checks on steering, suspension, lights and wipers.
Fresh oil matched to the engine specification is the core of it, because oil degrades on time as well as mileage. The filters come next, and the pollen filter is the one owners are most surprised by, since a blocked one shows up as a misted screen and a musty smell rather than anything mechanical.
The inspection half matters as much as the parts. Pads, discs, fluid, tyre condition and pressures, tread depth on all four corners and the spare, plus steering and suspension play checked with the car in the air. On modern cars a diagnostic scan is part of it too, because plenty of faults are logged long before a warning light appears.
You should come away with a plain list of anything found and a price for it, with nothing done that you did not agree to. That is how our servicing in Navan works.
Full service or interim service, which do you need?
A full service once a year for most cars. An interim, essentially oil, filter and a safety check, is the sensible option halfway through if you cover high mileage, or as the yearly service if your mileage is genuinely low.
The distinction is depth rather than quality. An interim keeps the oil fresh and catches anything unsafe. A full service goes further into filters, fluids and the inspection list.
If you drive 25,000km a year, a full service annually with an interim in between keeps the oil from ever getting old. If you drive 6,000km a year, mostly short runs, an annual interim with a full service every second year is often the honest recommendation, and we will say so rather than upselling.
Does short-journey driving need more frequent servicing?
Yes. Engines that never fully warm up accumulate moisture and unburnt fuel in the oil, which degrades it faster than long-distance driving does. School runs and short commutes are harder on an engine than motorway miles.
On a short trip the engine may never reach full operating temperature, so condensation inside it never boils off. Over months that thins the oil and encourages sludge, and it is why two cars with identical mileage can be in very different condition.
It affects the battery too, since the alternator never gets long enough to fully replace what starting used. That is why town cars often need batteries sooner. Our guide on what to do when a car will not start covers how to tell a tired battery from a charging fault.
Diesels doing only short runs have a third problem: the particulate filter needs sustained temperature to clear itself, and a filter that never regenerates eventually blocks. If that is your driving pattern, mention it when you book.
Is an NCT the same as a service?
No. The NCT is a roadworthiness test on the day, checking safety and emissions against a minimum standard. It does not change oil, replace filters or assess wear that is not yet a safety issue.
A car can pass the NCT with oil that has not been changed in three years, because oil condition is not part of the test. Treating the NCT as a service is how engines wear out early and how owners get surprised by a large bill that built up quietly.
They complement each other. A service keeps the car healthy; the test confirms it is legal. Many customers book a pre-NCT check alongside a service so the car is only off the road once, and our guide to passing the NCT covers what the test actually looks at.
Will servicing outside a main dealer affect my warranty?
No. You are entitled to have your car serviced anywhere, as long as the manufacturer’s schedule is followed and parts of matching quality are used. The work needs to be recorded properly.
European block exemption rules mean a manufacturer cannot void a warranty simply because an independent garage did the work. What matters is that the correct schedule was followed, the right specification of oil and parts were used, and there is a record.
We service to the schedule for the exact model and record what was done, so the history stands up both to a warranty claim and to a buyer asking questions later. A complete history is worth real money at resale.
