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Taking care of your car with regular servicing is key to keeping it running strong and avoiding unexpected breakdowns. But how often should you actually get these car repairs and services done? Here’s a practical guide to the most common maintenance intervals, and the warning signs that mean you shouldn’t wait.

Oil changes

Oil is the lifeblood of your engine. It lubricates moving parts, reduces heat and prevents premature wear. As a general rule, get an oil change every 5,000 to 10,000 kilometres, but this depends on your car and the type of oil used. Synthetic oil often allows longer intervals. If you’re unsure, check your owner’s manual or ask your mechanic. Skipping oil changes is one of the fastest ways to shorten your engine’s life.

Warning signs: Dark or gritty oil on the dipstick, engine running louder than usual, or the oil pressure light coming on.

Brake checks

Brakes are your most important safety system, so don’t leave them to chance. Have them inspected at least once a year or every 20,000 kilometres. Canberra’s hilly terrain and stop-start traffic puts extra strain on brake components, so it pays to stay on top of it.

Warning signs: Squeaking or grinding when braking, vibrations through the pedal, or the car pulling to one side when you brake.

Tyre rotations

Tyres wear unevenly depending on their position on the car. Rotating them every 10,000 kilometres helps them last longer and keeps handling consistent. It’s an easy job to combine with an oil change. Well-maintained tyres also improve fuel efficiency and reduce stopping distances.

Warning signs: Uneven tread wear, vibrations at highway speed, or the car pulling to one side.

Fluid checks and top-ups

Your car relies on several fluids to function properly – brake fluid, coolant, power steering fluid and transmission fluid all need regular attention. These are checked as part of regular car services, but it’s worth doing a visual check yourself every couple of months. Low fluid levels can quietly cause major damage before you notice anything wrong.

Warning signs: Spongy brake pedal, overheating, heavy steering, or rough gear changes.

Air filter replacement

The air filter stops dust and debris from getting into your engine. A clogged filter forces your engine to work harder, hurting both performance and fuel economy. Replace it every 15,000 to 30,000 kilometres, more often if you drive in dusty conditions around the ACT. Come in for a quick air conditioning service while you’re at it.

Spark plug replacement

Spark plugs ignite the fuel in your engine, and worn plugs mean misfires, rough idling and poor fuel economy. Most plugs last 30,000 to 100,000 kilometres depending on the type. Iridium plugs last longer but cost more upfront, usually worth it in the long run.

Warning signs: Rough idle, slow acceleration, engine misfires or increased fuel consumption.

Battery checks

Most car batteries last 3 to 5 years. Cold Canberra winters are particularly hard on batteries, so get yours tested before the temperature drops. If you notice slow cranking or electrical gremlins, don’t wait for it to leave you stranded. It might be time for a car battery replacement.

Warning signs: Slow engine crank, dimming headlights, or warning lights flickering on the dash.

Transmission fluid change

Transmission fluid lubricates your gearbox and keeps shifts smooth. It’s less frequent than other services, usually every 50,000 to 100,000 kilometres — but neglecting it can lead to expensive gearbox repairs down the track.

Warning signs: Slipping gears, rough or delayed shifts, or a burning smell from under the car.

Coolant system flush

Coolant regulates your engine temperature and prevents corrosion inside the cooling system. Over time it degrades and loses effectiveness. A coolant flush every 50,000 kilometres keeps things running at the right temperature and helps you avoid serious issues like a blown head gasket.

Warning signs: Temperature gauge running high, sweet smell from the engine bay, or coolant level dropping without explanation.

Timing belt replacement

The timing belt keeps your engine’s valves and pistons working in sync. If it snaps, the damage can be catastrophic and very expensive. Most manufacturers recommend replacement every 60,000 to 100,000 kilometres. It’s one of those jobs worth doing on schedule rather than waiting for symptoms, because by the time you have symptoms, it’s too late.

Warning signs: Ticking noise from the engine, difficulty starting, or visible cracking on the belt if you can see it.

Regular inspections

Beyond the specific intervals above, a full vehicle inspection once a year is a smart habit. A good mechanic will check your suspension, exhaust, steering and overall condition, catching small issues before they turn into big ones. At Gen-Tech we include a thorough check with every service.

When to see our mechanic for car repairs

These are general guidelines, your owner’s manual will have manufacturer-specific intervals for your car. When in doubt, get it checked. It’s almost always cheaper to fix something early than wait until it fails. Come and see our mechanics at Mitchell, ACT.

At GenTech Automotive & Performance Centre, Marcus and the team look after everything from routine servicing to full performance builds. Whether it’s time for an oil change, brake check, or any other car repairs, we’ve got you covered. And if you’re in the market for a used car, a pre-purchase car inspection can save you from inheriting someone else’s problems. Don’t wait until something goes wrong, stay on top of these intervals and enjoy a smooth, reliable drive.