★★★★★
Chevy Orlando, check oil leak and clean leakage. Service staff very helpful and efficient.
Andy
Restore the power, smoothness and fuel economy your direct-injection engine lost to carbon. Walnut blasting from $380.
Rough idle, a hesitant throttle, misfires or worse fuel economy? On direct-injection engines, carbon cakes onto the intake valves and chokes the airflow. We blast it off with walnut media and clean the intake properly, so your engine breathes and pulls like it should again.
On direct-injection engines, fuel no longer washes the intake valves, so carbon cakes on and chokes the airflow. Walnut blasting physically removes it, the same method the carmakers use, not just a chemical rinse that never reaches the valves.
We tell you straight whether your engine needs a simple throttle and intake clean or a full walnut blast. Walnut blasting from $380, quoted before any work. No upsell.
We scan your engine with dealer-level diagnostics to confirm carbon is behind the rough idle or misfire, not a coil, injector or sensor, before we touch it. Spread the cost with Atome, Grab or Shopee.
Jin had suggested me to get a throttle body cleaning and change of brake oil. Their price was pretty reasonable and I was very satisfied with the service. My car's petrol efficiency actually improved by 10% after the servicing!
Sent my car Mercedes c180 to 1 Car Service to carry out servicing and troubleshoot deceleration issues. They did an oil change, replace new spark plugs and throttle body cleaning. Car's performance greatly improved. Overall, service is good, mechanics are knowledgeable and price is reasonable.
Services done included throttle body cleaning, spark plug replacement, transmission oil change, brake oil servicing, and engine oil with filter. After the servicing, the car feels much smoother and drives better overall.
Went to do regular servicing and changing of rear brake pads. When they tell their recommendation services, I went ahead with their throttle body cleaning. The outcome was positive, smooth and responsive acceleration.
4.9★ from 1,751+ Google reviews
Chevy Orlando, check oil leak and clean leakage. Service staff very helpful and efficient.
Andy
Renault Fluence check engine oil leak. Very well explained and good service
Michael P.
Highly recommended resolve my Honda shuttle engine light issue after few different workshops
Bao L.
Did oil change, spark plugs replacement, transmission oil change for my Mercedes GLC and was happy with the service by service advisor Jin
Underdog
I had my Volvo V40 serviced for a new auxiliary battery and timing belt change. Fast, efficient and to my satisfaction. The cost was very reasonable.
Niels de B.
Service advisor : Steve Car model : BMW IX3 Works Done : maintenance service, repair coolant and oil leaking
Mukesh T.
Fixed my Porsche Panamera aircon issues in less than a day. Very skillful team specialising in car aircon, engine repairs and gearbox overhauls.
Amanda T.
Nissan Qasqhai oil change for engine done well and effectively fast
Kannan K.
They checked my car, changed engine oil n topped up brake fluid in under an hour. Very good service.
aLoy P.
Great service provided by Jin from 1 Car Service Workshop. Change of engine oil, gear oil, spark plugs and battery on my Audi A3. Tysm
Nigel Lee Shi Y.
Really skilful, no nonsense, straight to the point workshop with friendly and helpful staff. Mercedes C200 engine repair
Fiona Mei R.
Superb engine overhaul experience, highly recommend this workshop. Best warranty, better priced than elsewhere.
ze L.
Chevy Orlando, check oil leak and clean leakage. Service staff very helpful and efficient.
Andy
Renault Fluence check engine oil leak. Very well explained and good service
Michael P.
Highly recommended resolve my Honda shuttle engine light issue after few different workshops
Bao L.
Did oil change, spark plugs replacement, transmission oil change for my Mercedes GLC and was happy with the service by service advisor Jin
Underdog
I had my Volvo V40 serviced for a new auxiliary battery and timing belt change. Fast, efficient and to my satisfaction. The cost was very reasonable.
Niels de B.
Service advisor : Steve Car model : BMW IX3 Works Done : maintenance service, repair coolant and oil leaking
Mukesh T.
Fixed my Porsche Panamera aircon issues in less than a day. Very skillful team specialising in car aircon, engine repairs and gearbox overhauls.
Amanda T.
Nissan Qasqhai oil change for engine done well and effectively fast
Kannan K.
They checked my car, changed engine oil n topped up brake fluid in under an hour. Very good service.
aLoy P.
Great service provided by Jin from 1 Car Service Workshop. Change of engine oil, gear oil, spark plugs and battery on my Audi A3. Tysm
Nigel Lee Shi Y.
Really skilful, no nonsense, straight to the point workshop with friendly and helpful staff. Mercedes C200 engine repair
Fiona Mei R.
Superb engine overhaul experience, highly recommend this workshop. Best warranty, better priced than elsewhere.
ze L.
Audi A4 Diagnose gearbox and engine. Superb service. Surely will recommend
Zainuddin
Better service for BMW 523i timing chain and cam gears replacement.
Jan H.
Spark plugs changed. service very good and very patient.
Terry S.
I drive a BMW X3. Good service and price on regular servicing, engine oil top up.
Leow D.
Brought my Volvo XC40 for servicing. Change the Timing belt. Mechanic Jin did a good job.
Joel I N L.
It's good service Car model - BMW Service - Engine oil service Service advisor - Jin
ramadoss N.
Great service from Jin and his team! Regular servicing + replaced spark plugs, transmission oil, brake oil on my Honda Vezel!
eric T.
Replaced the engine mounting of our Honda Stream. Satisfied with the workmanship and customer service.
Muhd L.
Toyota engine overhaul done with long warranty. Knowledgeable technicians. Moses and Jin are nice and friendly
Kwan L.
Just repair my engine. Like their service so much as they are quite friendly and work very efficient
khar Y.
Efficient repair service and engine overhaul. Knowledgeable staff. Highly recommended.
Serene T.
Mini Cooper S. Accurate diagnoses and collected my car on the same day for replacing power pressure pump and spark plugs.
Ray L.
Audi A4 Diagnose gearbox and engine. Superb service. Surely will recommend
Zainuddin
Better service for BMW 523i timing chain and cam gears replacement.
Jan H.
Spark plugs changed. service very good and very patient.
Terry S.
I drive a BMW X3. Good service and price on regular servicing, engine oil top up.
Leow D.
Brought my Volvo XC40 for servicing. Change the Timing belt. Mechanic Jin did a good job.
Joel I N L.
It's good service Car model - BMW Service - Engine oil service Service advisor - Jin
ramadoss N.
Great service from Jin and his team! Regular servicing + replaced spark plugs, transmission oil, brake oil on my Honda Vezel!
eric T.
Replaced the engine mounting of our Honda Stream. Satisfied with the workmanship and customer service.
Muhd L.
Toyota engine overhaul done with long warranty. Knowledgeable technicians. Moses and Jin are nice and friendly
Kwan L.
Just repair my engine. Like their service so much as they are quite friendly and work very efficient
khar Y.
Efficient repair service and engine overhaul. Knowledgeable staff. Highly recommended.
Serene T.
Mini Cooper S. Accurate diagnoses and collected my car on the same day for replacing power pressure pump and spark plugs.
Ray L.
We carbon-clean and walnut-blast direct-injection engines across the continental makes, Audi and VW, BMW and Mini, Mercedes and Porsche, plus Japanese engines, to restore the power, smoothness and economy that carbon takes away.
We scan the engine and confirm carbon is behind the rough idle or misfire, not a coil, injector or sensor, before recommending a clean. No guesswork.
For lighter build-up we clean the throttle body and intake to bring back a smooth idle and a crisp throttle. Often done as part of a good service.
For baked-on intake-valve carbon on direct-injection engines, we blast it off with walnut shell media, the thorough mechanical fix. From $380.
Fresh intake gaskets where needed, faults cleared, and a road test so you feel the engine breathing properly again before you collect it.
If your car is a newer continental model, its engine is almost certainly direct-injection, and that is exactly why it builds up carbon on the intake valves.
Older engines squirted fuel into the intake port, so every drop of petrol washed over the back of the intake valve and kept it clean. Direct injection sprays the fuel straight into the cylinder instead, which is more efficient, but it means the intake valves never get washed. Oil vapour drawn back through the crankcase breather bakes onto the hot valves and hardens into carbon. Layer by layer it narrows the port the air has to flow through.
As the airflow chokes, the engine starts to run rough, hesitate, misfire and lose power, and it drinks more fuel doing it. It creeps in slowly, usually somewhere past 60,000 to 100,000km, so many owners put up with a car that is quietly getting worse without realising why. A chemical additive down the fuel tank cannot fix this, because on a direct-injection engine the fuel never touches the intake valves where the carbon is. The carbon has to be physically removed, and that is what walnut blasting does.
Carbon on the intake valves shows up in ways that are easy to blame on other things.
1. A rough or shaky idle. Especially noticeable on a cold start, when the engine feels lumpy or hunts up and down instead of settling.
2. Hesitation and flat spots. You press the throttle and there is a beat of nothing, or the power comes in unevenly, because the restricted valves upset the airflow.
3. Misfires and a check-engine light. Heavy build-up can cause genuine misfires and log fault codes, particularly on BMW and VW group engines.
4. Worse fuel economy. A choked intake makes the engine work harder for the same power, so you fill up more often than you used to.
5. Lost power, especially low down. The engine feels sluggish and lazy off the line, and does not pull the way it did when it was newer.
These overlap with worn spark plugs, tired coils and dirty injectors, which is exactly why we diagnose first and confirm carbon is the cause before recommending a blast, so you are not paying for a clean when the real fault is a $40 coil.
These two get lumped together, but they are different jobs for different levels of carbon, and it is worth knowing which your engine actually needs.
Throttle and intake cleaning tackles the lighter build-up on the throttle body and the intake tract. It brings back a smoother idle and a crisper throttle, and it is quick and affordable, which is why we often recommend it as part of a regular service every 20,000km or so to keep things clean. Plenty of our customers feel a real difference from this alone, smoother running and better response, and it keeps carbon from getting a proper foothold.
Walnut blasting is the deep clean for the heavy, baked-on carbon that sits on the intake valves themselves on a direct-injection engine. A chemical clean or a throttle clean cannot reach there. We remove the intake manifold, seal each intake port, and blast the valves with crushed walnut shell media, a grit hard enough to strip the carbon but soft enough to leave the metal unharmed, while a vacuum pulls the debris straight out. It is the same method used by the carmakers, and it is the proper fix once the valves are genuinely caked. Walnut blasting starts from $380.
Not sure which yours needs? That is what the diagnosis is for. We look at the engine, the mileage and the symptoms and tell you straight.
Most walnut blasting jobs are completed in about a day, depending on how much has to come off to reach the intake on your engine. We confirm the timeline once we have seen your car.
Direct injection is everywhere now, but a few engine families are especially well known for intake-valve carbon.
Audi and Volkswagen. The 2.0 TFSI and TSI (EA888), 1.4 TSI, and the 3.0 TFSI V6 across the A3, A4, A5, A6, Q3, Q5, Golf GTI, Passat and Tiguan are classic candidates. Rough idle and misfire codes past 80,000km are common.
BMW and Mini. The N43, N53, N54, N55, N20 and B48 engines across the 1, 3, 5 Series, X1, X3 and Mini range are known for it. Cold-start roughness and misfires are the usual signs.
Mercedes-Benz. The M270, M274 four-cylinders and the M276 V6 across the C-Class, E-Class, GLC and more build up intake carbon as the mileage climbs.
Porsche and others. Direct-injection Porsche, Volvo and many current Japanese engines develop the same build-up. If your car is a turbo or a modern petrol from roughly the last fifteen years, it is very likely direct-injection.
Tell us your make, model and mileage and we will tell you whether walnut blasting is worth doing on your engine yet.
A carbon clean does not add power your engine never had. What it does is give back the power, smoothness and economy that carbon quietly took away, by clearing the airway back to how the engine was designed to breathe.
After a proper clean, owners typically notice a smoother idle, a throttle that responds cleanly again, misfires gone, and better fuel economy because the engine is no longer fighting a choked intake. On a direct-injection engine with a genuine build-up, the difference can be surprising, the car simply feels healthy again. As one Volvo owner told us after an intake clean here, their fuel economy improved by around ten percent.
It is honest, mechanical work with a real result. We are not promising miracles or magic numbers, just your own engine breathing and running the way it should.
Walnut blasting starts from $380. The final price depends on your engine, mainly how many cylinders it has and how much has to come off to reach the intake, so a straight number comes once we know your model.
A throttle and intake clean is a lighter, cheaper job and is often done as part of a service. Which one your engine needs comes down to the diagnosis: for lighter build-up, a throttle and intake clean does the job; for heavy baked-on valve carbon on a direct-injection engine, walnut blasting is the proper fix.
WhatsApp us your make, model and mileage and we will tell you which service makes sense and give you a clear price before any work begins. You can spread the cost with Atome, Grab or Shopee.
1 Car Service is an independent continental car workshop at Sin Ming AutoCity. If your engine idles rough, hesitates, misfires or feels down on power and economy, WhatsApp us or drive down. We will confirm whether carbon is the cause, tell you whether a throttle and intake clean or a full walnut blast is what it needs, and give you a clear price first. Walnut blasting from $380, and you can spread the cost with Atome, Grab or Shopee.
We handle the full range of engine repair and servicing under one roof, and we are continental specialists across Audi, BMW and Mercedes.
WhatsApp us your model and mileage. We will confirm whether carbon is the cause and tell you whether a throttle and intake clean or a full walnut blast is what it needs. Walnut blasting from $380, quoted before any work, and you can spread the cost with Atome, Grab or Shopee.
WhatsApp us for a quoteWalnut blasting is a deep clean for the intake valves on a direct-injection engine. We remove the intake manifold, seal each intake port, and blast the carbon off the valves with crushed walnut shell media while a vacuum extracts the debris. The walnut grit is hard enough to strip the carbon but soft enough to leave the metal unharmed. It is the proper mechanical fix once the valves are genuinely caked.
A throttle and intake clean and a chemical additive tackle lighter build-up in the throttle body and intake tract. Neither can reach the intake valves on a direct-injection engine, because the fuel and the chemical never flow over them. Walnut blasting physically removes the baked-on carbon from the valves themselves, which is the only proper fix for a heavy build-up.
Walnut blasting starts from $380. The final price depends on your engine, mainly the number of cylinders and how much has to come off to reach the intake. A lighter throttle and intake clean costs less. WhatsApp us your model and mileage for a clear price before any work begins.
Direct-injection engines, which is most modern turbo and petrol cars from roughly the last fifteen years. The best-known families are Audi and VW TFSI and TSI, BMW and Mini N and B series, and Mercedes M270, M274 and M276, but Porsche, Volvo and many Japanese direct-injection engines build up the same intake carbon.
A light throttle and intake clean every 20,000km or so as part of a service helps keep carbon from getting a foothold. A full walnut blast is usually needed less often, when symptoms show or as the mileage climbs past 60,000 to 100,000km on a direct-injection engine. We advise based on your engine and how it is running.
It gives back the power, smoothness and economy that carbon took away, by clearing the airway back to how the engine was designed to breathe. It does not add power the engine never had. On a direct-injection engine with a genuine build-up, owners typically notice a smoother idle, cleaner throttle response, fewer misfires and better fuel economy.
Most walnut blasting jobs are completed in about a day, depending on how much has to come off to reach the intake on your engine. We confirm the timeline once we have seen your car and keep you updated on WhatsApp.
Yes. Heavy intake-valve carbon can cause genuine misfires and log fault codes, especially on BMW and VW group engines. Because those symptoms also come from worn plugs, tired coils or dirty injectors, we diagnose first and confirm carbon is the cause before recommending a clean.
Yes. We carbon-clean and walnut-blast direct-injection engines across the continental makes, Audi, VW, BMW, Mini, Mercedes and Porsche, as well as Japanese engines. Tell us your make, model and mileage and we will advise on the right service.
WhatsApp us your car model and mileage. We will tell you whether a throttle and intake clean or a full walnut blast is what your engine needs, and give you a clear price before any work. Walnut blasting from $380. You can spread the cost with Atome, Grab or Shopee.
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