A Mercedes GLA came in for servicing at about 136,000km, and our team treated it as a major service. The inspection found the engine mounts collapsed and cracked, with the car vibrating. We replaced the mount set and an aged coolant tank hose along with the service items, each quoted and approved first.
Job completed: July 2026
| Car | Mercedes-Benz GLA |
|---|---|
| Symptom | Due for a major service at around 136,000km |
| Fault found | Engine mounts collapsed and cracked with the car vibrating, plus an aged, fragile coolant tank hose |
| Repair done | Major service (oil, throttle body clean, spark plugs, transmission oil, brake fluid), engine mount set and coolant tank hose replaced |
| Parts | OEM-grade parts throughout |
| Time taken | Timeline confirmed when you book |
| Cost | Each item quoted and approved before it was done |
| Warranty | No warranty term for this job; every item quoted and approved first |
The owner asked us to service the Mercedes GLA at around 136,000km. At this mileage, the car was due for a proper look-over rather than just an oil change, so our team treated it as a major service and inspected the car before quoting.
This is the right way to approach a high-mileage service on a car like the GLA. Mercedes engines are refined, quiet and capable, but they earn that character through proper maintenance.
The Mercedes GLA is a compact SUV on the same platform as the A-Class; the exact engine and gearbox fitted vary by year and variant. It is a well-engineered, comfortable car that rewards careful maintenance.
At higher mileage, several items come due together. Spark plugs wear over tens of thousands of kilometres. Transmission oil degrades and should be changed to keep shifts smooth. Brake fluid absorbs moisture and should be changed regularly. The battery weakens with age and Singapore's heat accelerates the process.
Engine mounts are rubber components that absorb the constant movement of the drivetrain. On a well-used car, they harden and crack over time. A cracked mount lets the engine rock under load, and the vibration travels through the car.
Our team inspected the car before quoting the service.
Beyond the service items, the main finding was the engine mounts. They had collapsed and cracked, and the car vibrated. We sent the owner photos. A cracked engine mount is a structural finding: it lets the engine rock under load, which stresses the drivetrain and sends vibration into the cabin.
We also flagged a small hose and joint on the coolant tank. The part had aged and was very fragile. Old coolant hoses harden and crack, and a weak one can fail under pressure.
We quoted every item before doing it. The owner approved the service items, a five-piece engine mount set and the coolant tank hose, and did not take the battery or the optional filters.
At 136,000km, a Mercedes GLA has been through several years of Singapore's heat cycles and stop-start traffic. None of the findings here are unusual or a sign of poor care. They are what any car accumulates with time and mileage.
Spark plugs wear with every firing cycle, so our team recommends changing them by mileage. Transmission oil degrades with heat and use, and old oil produces rougher shifts over time. Brake fluid absorbs moisture from the air and its boiling point drops over the years, affecting brake performance in heavy use.
Engine mounts are rubber, and rubber hardens and cracks with age and heat. They are normal wear items on a car at this mileage. On this car the mounts had already collapsed and cracked, and the car vibrated, so replacing the set during the service was the right call.
We completed the approved work in one visit.
The day after collection, the owner told us a sound from the left rear was still there. When the car came back in August, our team tested it and heard the sound coming from the front and rear suspension. We quoted the absorbers, linkages, lower arms and stabiliser bar separately, and the owner took the car home to consider the quote.
From our team's record of this job. Number plates are pixelated.
A Mercedes GLA major service in Singapore varies depending on what the car needs at its mileage. A routine service with oil and filters is at the lower end. When spark plugs, transmission oil, brake fluid and engine mounts are added, the scope grows and the total reflects that.
On this car the scope covered the major service items the owner approved, plus the engine mount set and the coolant tank hose, each quoted and approved before it was done. We quote every item separately and only do what the owner approves.
Service on schedule and keep the fluids current. Change the brake fluid regularly. Transmission oil is often overlooked, but it matters for smooth shifting. Spark plugs should be changed at the manufacturer's recommended interval, not extended beyond it.
Get the engine mounts inspected at each major service. A cracked mount is easy to miss in daily driving but obvious on a lift. Catching it while the car is already in for a service avoids a separate visit later.
A Mercedes GLA at 136,000km with proper maintenance history is a genuinely good car. Keep the schedule and the car will continue to give good service.
This Mercedes-Benz GLA (Major service and engine mount replacement) was handled at 1 Car Service, an independent workshop in Sin Ming AutoCity, Singapore. For Mercedes-Benz, we use dealer-level XENTRY diagnostics. We hold a 4.9★ rating from 1,836+ Google reviews.
WhatsApp us your Mercedes model, year and mileage. We inspect it properly, show you what we find, and quote every item before any work begins.
It depends on what the car needs at its mileage, so we quote each item individually after inspection. A routine oil-and-filter service is at the lower end. Adding spark plugs, transmission oil, brake fluid and engine mounts brings it to the higher end. We quote every item separately and only do what you approve.
Our team recommends changing it by mileage, and on this car it was part of the major service. We do not treat any fill as a lifetime fill. Old transmission oil produces rougher shifts and adds wear inside the gearbox.
A cracked engine mount typically produces a vibration through the cabin under acceleration, a slight shunt feeling when pulling away, and sometimes a thud or clunk when engaging drive or reverse. It can feel like something is loose under the car. A proper inspection confirms it.
Spark plugs wear over tens of thousands of kilometres. Worn plugs misfire, cause rough idling, reduce power and increase fuel consumption. On a Mercedes turbocharged engine, keeping plugs fresh is important for clean combustion and protecting the catalytic converter.
No. Using the correct oil spec, the right parts, and Xentry-compatible diagnostic tools is what matters for a Mercedes service. We service Mercedes vehicles with the specified oil and OEM-grade parts, and inspect before quoting so there are no surprises at collection.
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