Is Combustion Chamber Cleaning at 4S Stores Necessary?

[Beatrix]

Combustion chamber cleaning at 4S stores is actually unnecessary, as stubborn carbon deposits cannot be removed through this method, while minor carbon deposits can be cleaned simply by driving on the highway. Below is relevant information about cleaning carbon deposits in car engines: Carburetor cleaning: Remove the throttle body, clean both sides with carburetor cleaner, and wipe dry with a cloth. It is generally recommended to clean the throttle body once a year or every 20,000 kilometers, though different vehicle models may have varying cleaning cycles, so refer to the maintenance manual. Carbon deposit cleaners: Internal engine carbon deposit cleaning can be done before changing the oil. Open the oil cap, add the cleaner, mix it with the old oil, and let the engine idle for about 10 minutes. Intake system cleaning: For intake system cleaning, purchase a bottle of intake system cleaner, pour it into the reservoir of a dedicated cleaning device, connect it to the intake system, and start the engine to use vacuum to draw the cleaner into the intake passages for cleaning purposes.

[DiAngelina]

I've worked in the car industry for over 20 years and seen too many engines ruined by carbon buildup in the combustion chamber. Cleaning is definitely necessary, especially if your car often drives short distances in the city where carbon accumulates quickly. This can lead to incomplete fuel combustion, skyrocketing fuel consumption, and potential damage to spark plugs or other parts. It's not mandatory for every maintenance session, but I recommend checking it every 80,000 to 100,000 kilometers or when you feel the car's power weakening. Spending a few hundred on cleaning can save you thousands on major repairs, extend the engine's lifespan, and make driving smoother. My regularly maintained cars have significantly longer service lives—much more cost-effective than neglecting maintenance. Safe driving is what truly matters.

[VanJesse]

As a car owner, I always carefully calculate my vehicle maintenance costs. Combustion chamber cleaning at a 4S dealership can be quite expensive, ranging from several hundred to over a thousand yuan, depending on the car's condition. If the car runs smoothly with normal fuel consumption, I don't recommend doing it unnecessarily to avoid wasting money. However, if symptoms like idle shaking, sluggish acceleration, or black smoke from the exhaust pipe appear, cleaning can solve the problem and is much cheaper than replacing parts. I've experienced this situation myself—after cleaning, my fuel consumption dropped by 5%, and I drove with more peace of mind. Overall, when evaluating cost-effectiveness, maintenance expenses should balance risks to prevent minor issues from turning into major faults.

[LaAurora]

As a car enthusiast who pursues power, after cleaning the combustion chamber, the car responds as sharply as a new engine. Carbon deposits can cause throttle lag and sluggish acceleration, but after cleaning, the engine delivers more power, making highway overtaking more exhilarating. If your car is old or feels jerky, a simple cleaning is worth it. Personally, I've experienced reduced fuel consumption and enhanced driving pleasure after cleaning, making daily commutes more worry-free. This task isn't a daily necessity, but it's beneficial based on symptoms to maintain engine health.