What each repair involves on the Stonic, when to inspect or replace, and what our invoices say it costs
The figures are from our invoices. Scheduled maintenance follows the requirements for your car's engine, gearbox and model year; other repairs are assessed from symptoms, inspection and diagnostic results rather than a universal age or mileage. The notes under each repair are general guidance for cars driven in Singapore, not statistics.
Spark plugs and ignition coils on the Kia Stonic
This is among the repair work our Stonic invoices record most often. On the bill, this item typically came to about $150 (GST included; other work on the same bill is not counted).
Spark plugs ignite the fuel mixture, while ignition coils supply the voltage they need. Failure may cause rough idling, hesitation, weak response or an engine warning. Continuing with a misfire can overheat the catalytic converter and cause wider damage.
We run a fault-code scan, inspect the plugs and test coil output to separate a worn plug from a failed coil. We document the findings and quote for the affected parts before work starts.
Service interval: Spark plugs have a scheduled interval that depends on the engine and plug type, and we confirm it for your car. Ignition coils are replaced on diagnosis, not on a schedule, and a misfire does not by itself mean a coil has failed.
Maintenance and early warning signs: Keep to the plug interval and have misfires checked early, because unburnt fuel can damage the catalytic converter. Early signs: rough idle, hesitation, a flashing engine light.
Gearbox oil changes on the Kia Stonic
This is among the repair work our Stonic invoices record most often. On the bill, this item typically came to about $150 (GST included; other work on the same bill is not counted).
Gearbox oil lubricates and cools internal parts while supporting smooth shifts. Worn or low fluid may show up as hesitation, harsh changes or shuddering. Waiting can increase heat and friction, leading to damage inside the gearbox.
We inspect the fluid condition and level, trace any leaks and road-test the shift quality. We distinguish a fluid-service need from a mechanical fault, then provide a documented recommendation and honest quote before starting.
Service interval: Follow the interval and fluid specification for your gearbox and model year; they differ between gearbox types even within one model, and we confirm them for your car. Where the maker lists no change for the life of the car, ask us whether a preventive change makes sense for your gearbox and driving.
Maintenance and early warning signs: Use the specified fluid and fill procedure, with the filter where your gearbox has a serviceable one, and avoid hard launches while the gearbox is cold. Fresh fluid is maintenance, not a cure for a gearbox that is already faulty. Early signs: a burnt smell, dark fluid, shifts that have become rough.
More on this repair at 1 Car
Brake hydraulics and ABS faults on the Kia Stonic
This is among the repair work our Stonic invoices record most often. On the bill, this item typically came to about $600 (middle half $450 to $750, GST included; other work on the same bill is not counted).
Calipers apply the brake pads, hoses carry hydraulic pressure, and the ABS pump and sensors help prevent wheel lock. A fault may cause pulling, dragging, a soft pedal, uneven braking or an ABS warning. Delaying inspection can damage other brake parts and reduce control.
We scan the brake system, inspect hoses and calipers for leaks or binding, and test each wheel-speed signal. We replace only the failed hydraulic or sensor component, with documented findings and an honest quote before work starts.
When to inspect or replace: Calipers, hoses and ABS parts are diagnosed and replaced on a confirmed fault. Brake fluid is changed on the time schedule for your car, because it absorbs moisture.
Maintenance and early warning signs: Change brake fluid on schedule, have the caliper sliders serviced at pad changes, and act on a pulling or dragging brake at once. Early signs: a soft or long pedal, pulling to one side, a hot wheel after driving, an ABS warning.
Wheel bearings and hubs on the Kia Stonic
This is among the repair work our Stonic invoices record most often. On the bill, this item typically came to about $600 (middle half $450 to $750, GST included; other work on the same bill is not counted).
A wheel bearing supports the wheel and lets it rotate smoothly. Wear may sound like humming or growling that changes with road speed or steering load, sometimes with looseness or vibration. Leaving it unattended can affect the hub, tyre and stable wheel movement.
We road-test the noise, check wheel play and inspect the hub under load. The inspection is documented, and we confirm whether the bearing or complete hub needs attention before giving an honest quote.
When to inspect or replace: Inspected for play and noise during servicing and replaced on confirmed wear, not at a set mileage. A hum is checked before it is blamed on a bearing.
Maintenance and early warning signs: Slow down for potholes and humps. Early signs: a hum that changes with speed or when cornering, play at the wheel.
The final scope depends on the exact failed part, parts choice, access and whether related damage is found. A clean diagnosis keeps the work targeted, while delayed faults can involve more components. The invoice statistic beside each repair is a guide, not a quote for your Stonic.
