Honda Freed Major Service in Singapore: Throttle Body, Filters, Spark Plugs and an Oil Leak Found

This Honda Freed came in when its service was due. We changed the engine oil and filter, the transmission oil and the brake fluid, replaced the air and cabin filters and the spark plugs, and cleaned the throttle body. Our check also found a bad oil leak, a cracked and sagging mounting, and a fan belt with small cracks. We sent the owner a video of the leak and a quote for all three. The owner collected the car and said they would get back to us on these.

Job completed: September 2026

White Honda with the bonnet open at our Singapore workshop during the service check

Job completed: September 2026. Last updated: October 2026. Written from our workshop job records and photos; technical details are generalised where the records do not confirm them.

Car: Honda Freed (white)
Service done: Engine oil and filter, transmission oil and brake fluid changed; engine air filter, cabin filter and spark plugs (4 pcs) replaced; throttle body cleaned
Found during service: Oil leaking badly, a mounting cracked and sagging, and a fan belt with small cracks
Next step: Leak shown to the owner on video; leak, mounting and fan belt quoted for the owner to decide

Car	Honda Freed (white)
Symptom	Due for servicing
Fault found	Service items due by schedule. Our check also found oil leaking badly, a mounting cracked and sagging, and a fan belt with small cracks.
Repair done	Engine oil and filter, transmission oil and brake fluid changed; engine air filter, cabin filter and four spark plugs replaced; throttle body removed and cleaned. The oil leak, mounting and fan belt were quoted, not done on this visit.
Parts	Quality replacement parts throughout
Time taken	Timeline confirmed after inspection
Cost	Quoted item by item after inspection
Warranty	Routine servicing carries no workmanship warranty

What the owner brought the Honda Freed in for

The owner booked the Honda Freed in when its service came due. After checking the car, our team listed what was due: engine oil and filter, engine air filter, aircon filter, throttle body cleaning, spark plugs, transmission oil and brake fluid. The battery, brakes and tyres were in good condition.

The check also turned up three problems the owner had not raised: oil leaking badly, a mounting that was cracked and sagging, and a fan belt with small cracks.

The car

This Honda has a petrol engine that takes four spark plugs. A throttle body controls the air going into the engine. It works cleanly when new but collects carbon and oil residue over time, which can dull throttle response and smoothness.

Worn plugs lead to misfires, hesitant acceleration and higher fuel use. The air and cabin filters both need periodic replacement to keep the engine breathing and the cabin air clean.

A service is also a chance to check underneath the car, where oil leaks can build up unnoticed.

What we found

The service items were due by schedule, and the owner approved them all. We removed the throttle body to clean it.

Our check found oil leaking badly. We sent the owner a video of it, and pointed to it when the owner asked which part was leaking. To fix the leak, our team quoted a new valve cover assembly, VTEC oil seal, engine oil sump, transmission oil sump and flywheel oil seal set.

We also found a mounting cracked and sagging, and a fan belt with small cracks. We quoted an engine and gearbox mounting set and a new fan belt.

Throttle body removed and held up for cleaning, in front of the Honda's engine bay

Why a check underneath matters at every service

Oil leaks can develop gradually and stay out of sight until the car is lifted for a proper look. Oil seeping from a gasket or seal coats the casing and nearby parts, and can slowly lower the oil level if left unchecked.

A low oil level in the engine or gearbox speeds up wear inside, and the bill grows the longer a leak is left. That is why we check underneath at a service and tell the owner what we find, even when the car came in only for servicing.

What we did

Service, as approved:

Changed the engine oil and oil filter.
Changed the transmission oil and the brake fluid.
Replaced the engine air filter and the aircon (cabin) filter.
Replaced all four spark plugs.
Removed and cleaned the throttle body.

Found and quoted, not done on this visit:

The oil leak (valve cover assembly, VTEC oil seal, engine and transmission oil sumps, flywheel oil seal set).
The cracked, sagging mounting (engine and gearbox mounting set).
The cracked fan belt.

We sent the owner photos of the old and new parts. The owner collected the car and said they would get back to us on the repairs.

Old and new engine air filter and cabin filter laid out on the Honda's engine during the service

Before and after

Before

Service items due: oils, filters, spark plugs, throttle body
Old cabin filter visibly dirty
Oil leaking badly
Mounting cracked and sagging
Fan belt with small cracks

After

Engine oil and filter, transmission oil and brake fluid changed
New engine air filter and cabin filter fitted
Four new spark plugs installed
Throttle body cleaned
Leak, mounting and fan belt quoted for the owner to decide

Photos from this job

From our team's record of this job. Number plates are pixelated.

What a Honda Freed major service costs in Singapore

Major service cost depends on how many items need attention. We go through each item with you and quote each one before any work begins. You decide what to proceed with.

On this car, the oil leak, the mounting and the fan belt were each quoted separately, item by item, before the car went home. The owner chose to decide on them later. We do not bundle surprises into a flat rate.

Keeping your Honda Freed running well

Air and cabin filters on the Honda Freed should be checked and replaced periodically, especially given Singapore's dusty urban environment. A clogged air filter reduces engine power and fuel economy. A dirty cabin filter means musty air inside the car.

Throttle body cleaning at regular intervals keeps acceleration smooth and prevents hesitation or rough idling. Spark plug replacement at the recommended interval avoids misfires and hard starting.

A lift inspection at every service is the most reliable way to catch undercarriage leaks early. An oil leak found early is often a seal or gasket job. Left to develop, it can lower the engine or gearbox oil level and lead to bigger repairs.

About the workshop

This Honda Freed (Major service: engine oil and filter, transmission oil, brake fluid, air and cabin filters, spark plugs, throttle body cleaning) was handled at 1 Car Service, an independent workshop in Sin Ming AutoCity, Singapore. We hold a 4.9★ rating from 1,836+ Google reviews.

Signs your Honda Freed needs attention

Hesitant or rough acceleration that was not there before, which can point to a dirty throttle body or worn spark plugs
Increased fuel consumption compared to what you are used to
Hard starting or rough idle
Musty or stale smell inside the cabin from a clogged cabin filter
Oil stain or drips on the driveway or parking space under the car
Transmission warning light or any change in how the gearbox shifts

Honda Freed due for a service, or noticed something leaking underneath?

WhatsApp us your Honda Freed's details and what you need. We will check everything from the engine bay to the undercarriage and give you a clear, honest quote before any work begins.

WhatsApp us about your Honda Freed

Honda Freed major service: common questions

How much does a Honda Freed major service cost in Singapore?

The cost depends on which items are due and what is found during the inspection. We go through each item with you and quote before any work begins. WhatsApp us your car's details for a guide.

What is included in a Honda Freed major service?

It depends on what is due. On this car, it covered the engine oil and filter, transmission oil, brake fluid, engine air filter, aircon filter, spark plugs and throttle body cleaning. Our check of the car during the service is how we found the oil leak, the cracked mounting and the cracked fan belt.

What causes a Honda Freed throttle body to get dirty?

Normal engine operation allows oil vapour and carbon deposits to build up inside the throttle body over time, especially on engines with a crankcase ventilation system. The deposits coat the bore and the butterfly valve, reducing airflow. Cleaning it at regular service intervals keeps the throttle response sharp and prevents rough idling.

Is an oil leak on a Honda Freed serious?

It depends on the source and how long it has been leaking. Left unchecked, the oil level can drop and cause wear inside the engine or gearbox. On this car the leak was bad, and our team quoted the VTEC and flywheel oil seals, both oil sumps and the valve cover assembly to fix it. Finding a leak at a routine service gives you time to plan the repair.

How often should the spark plugs be replaced on a Honda Freed?

Spark plug service intervals vary by plug type and driving conditions. Our team can check the condition of your plugs and advise when replacement is due. Signs that plugs need attention include hesitant acceleration, a rough idle or harder starting.

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