What each repair involves on the GLC, 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.
Gearbox oil changes on the GLC
26% of the GLC registrations in our records had at least one invoice involving this work (25 of 96, 31 invoices in all). On the bill, this item typically came to about $250 (28 recent priced bills, GST included; other work on the same bill is not counted).
Gearbox oil lubricates internal parts, carries heat away and helps hydraulic controls work smoothly. Ageing fluid may show up as hesitant shifts, jolts or a delay when selecting drive. Leaving degraded or contaminated fluid in service can increase wear and turn maintenance into internal repair.
We scan the transmission with XENTRY, inspect the fluid condition and check for leaks before recommending the correct work. We document the findings, give you an honest quote before work starts, then renew the service parts due or repair only the failed seal or component found.
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.
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Brake pads, discs and wear sensors on the GLC
25% of the GLC registrations in our records had at least one invoice involving this work (24 of 96, 35 invoices in all). On the bill, this item typically came to about $1,000 (middle half $650 to $1,750, 27 recent priced bills, GST included; other work on the same bill is not counted).
Brake pads create the friction that slows the car, while discs provide the surface they grip and wear sensors flag low material. You may notice squealing, vibration, reduced braking response or a dashboard warning. Waiting can score the discs, increase stopping distance and raise the repair scope.
We read the brake system with XENTRY, measure pad and disc condition, and inspect each wear sensor. The measurements are documented with an honest quote before work starts, and we change only the worn parts or failed sensor.
When to inspect or replace: Pads and discs are measured at every service and replaced by thickness and condition against the limits for your car, not by mileage. Discs are judged on the same measurement, not on a fixed number of pad changes.
Maintenance and early warning signs: Brake early and gently, leave a gap so you roll instead of stopping at every light, and use engine braking on long descents; stop-and-go traffic wears pads and discs faster. Early signs: squeal, grinding, a pulse through the pedal, a wear warning on the dash.
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Battery replacement on the GLC
19% of the GLC registrations in our records had at least one invoice involving this work (18 of 96, 22 invoices in all). On the bill, this item typically came to about $350 (22 recent priced bills, GST included; other work on the same bill is not counted).
The battery starts the engine, supports the car's electrical systems and helps keep voltage stable. Slow cranking, dim lights, unavailable stop-start operation or scattered warnings can point to low battery health. A weak battery can strain the charging system and trigger misleading electronic faults.
We use XENTRY to read energy-management faults, then run a battery and charging-system test with the results recorded. Your honest quote comes before work starts, and we replace only the battery or charging component that fails testing.
When to inspect or replace: The starter battery is tested at every service and replaced on the test result rather than at a set age. Cars with a separate auxiliary battery for the stop-start system or the electronics have that battery tested and replaced the same way, and it is counted in this row. Hybrid drive batteries are a separate matter.
Maintenance and early warning signs: Short trips and daily aircon use are hard on a battery in Singapore; give the car a longer run where you can, switch accessories off before the engine, and park in shade. Early signs: slow cranking, lights dimming at idle, stop-start no longer working, a warning about the auxiliary battery, electrical warnings that come and go.
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Water pumps, thermostats, radiators and coolant leaks on the GLC
19% of the GLC registrations in our records had at least one invoice involving this work (18 of 96, 22 invoices in all). On the bill, this item typically came to about $400 (middle half $300 to $1,300, 21 recent priced bills, GST included; other work on the same bill is not counted).
The water pump circulates coolant, the thermostat controls its flow and the radiator releases heat. A low-coolant warning, sweet smell, damp patch or rising temperature can signal a fault. Continuing to drive with poor coolant flow or a leak can overheat the engine and cause wider damage.
We check temperature data with XENTRY, pressure-test the cooling system and use tracing dye when the source is hard to see. We document the leak, provide an honest quote before work starts and replace the failed pump, thermostat, radiator, hose or seal rather than the whole cooling system.
When to inspect or replace: Water pumps, thermostats, radiators and hoses are inspected and pressure-tested and replaced when a fault is confirmed; some engines also list a scheduled water-pump replacement, which we check for your car. Coolant itself is changed on the maker's schedule for your engine.
Maintenance and early warning signs: Top up only with the specified coolant, and stop as soon as a temperature warning appears. Early signs: a sweet smell, a coolant level that keeps dropping, a wet patch, a temperature gauge climbing in traffic.
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Engine and gearbox mountings on the GLC
14% of the GLC registrations in our records had at least one invoice involving this work (13 of 96, 14 invoices in all). On the bill, this item typically came to about $850 (middle half $850 to $950, 10 recent priced bills, GST included; other work on the same bill is not counted).
Mountings hold the engine and gearbox in position while isolating movement from the cabin. Wear may feel like vibration at idle, a thump when selecting drive or excess movement during acceleration. Leaving a failed mounting can place added strain on hoses, exhaust parts and driveline components.
We road-test the GLC, review relevant XENTRY data and inspect the mountings under load, documenting where excess movement begins. After an honest quote before work starts, we replace only the collapsed or leaking mounting instead of unrelated supports.
When to inspect or replace: Mountings are inspected under load and replaced when a mount is confirmed split, collapsed or leaking. Vibration alone is not a diagnosis, because a misfire feels similar.
Maintenance and early warning signs: Accelerate and brake smoothly, especially between traffic lights, do not snap the car into gear at high revs, and fix oil leaks that soften the rubber. Early signs: a clunk when selecting drive, shake at idle, engine movement under load.
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Gasket, seal, cover and housing oil leaks on the GLC
9% of the GLC registrations in our records had at least one invoice involving this work (9 of 96, 9 invoices in all). On the bill, this item typically came to about $450 (middle half $350 to $550, 6 recent priced bills, GST included; other work on the same bill is not counted).
Gaskets, seals, covers and housings keep lubricating oil inside the engine. A leak may leave drops below the car, a wet area in the engine bay, smoke or a burning smell. Ignoring it can lower the oil level, contaminate belts or mountings and increase the repair scope.
We clean the affected area, trace the leak from the highest wet point and use XENTRY to check related warnings. We photograph the source, identify the failed gasket, seal, cover or housing, and give you an honest quote before work starts.
When to inspect or replace: Checked at every service and repaired according to the source and severity found, from a weeping seal to a housing. No age makes a leak due.
Maintenance and early warning signs: Change the oil on time to the maker's specification, and fix small weeps before they reach belts, mountings and electrical parts. Early signs: drips under the car, a burning smell after driving, a falling oil level.
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Spark plugs and ignition coils on the GLC
8% of the GLC registrations in our records had at least one invoice involving this work (8 of 96, 8 invoices in all). On the bill, this item typically came to about $200 (5 recent priced bills, GST included; other work on the same bill is not counted).
Spark plugs ignite the fuel mixture, while ignition coils provide the voltage they need. A fault can cause rough idling, hesitation, weak acceleration or a misfire warning. Continued misfiring can send unburnt fuel into the exhaust and damage the catalytic converter.
We read misfire data with XENTRY, inspect plug condition and test the coils, with the results documented instead of replacing parts by guesswork. We give you an honest quote before work starts and change only the plugs due or the coil that fails testing.
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.
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A routine fluid service or isolated sensor fault tends to keep the visit lower, while combined brake, cooling or mounting work pushes it higher. The published statistic is not a quote because your GLC's condition and required parts set the scope. We inspect the car and give you an honest quote before work starts.
