What are the maintenance items for a car at 70,000 kilometers?
3 Answers
Maintenance items for a car at 70,000 kilometers include replacing various belts, changing transmission fluid, replacing spark plugs, cleaning the throttle body and fuel injectors, cleaning the three-way catalytic converter, and replacing the fuel filter. It is also necessary to inspect the vehicle's suspension and various rubber bushings, check the tire condition, and replace them if necessary. Below are the relevant details: 1. Tires: When a car reaches 70,000 kilometers, the tread wear is usually severe, and the rubber may have aged. For driving safety, it is recommended to replace the tires if necessary. 2. Transmission: Transmission fluid has a usage cycle and generally needs to be replaced every 2 years or 40,000 kilometers. 3. Three-way catalytic converter cleaning: Carbon deposits from the engine can clog the three-way catalytic converter, leading to poor acceleration and non-compliant exhaust emissions. The cleaning cycle for the three-way catalytic converter is typically every 30,000 to 40,000 kilometers. 4. Inspect the vehicle's suspension and various rubber bushings: Rubber bushings play a stabilizing role at the bottom of the vehicle's engine. As the vehicle ages, the rubber may deteriorate, causing various noises from the chassis during driving.
My car just passed the 70,000-kilometer mark, and this time the maintenance was quite comprehensive. In addition to the basic items, I specifically changed the engine oil and oil filter to ensure smoother engine operation. The air filter and cabin air filter were also replaced together, keeping both the interior and exterior air fresh. The brake fluid was a key inspection point, as it absorbs moisture over time and can affect braking performance—replacing it directly is safer. The transmission fluid is equally important, especially for automatic transmission vehicles, as neglecting it can lead to rough gear shifts. After checking the tire treads, a four-wheel rotation was performed to extend their service life. Upon removing the spark plugs, significant carbon buildup was found, and replacing them resulted in noticeably quicker throttle response. Finally, I had the mechanic thoroughly inspect the chassis bolts and shock absorbers to ensure no annoying creaks during long-distance drives. The entire process took half a day, but the peace of mind while driving is worth it.
As a frequent long-distance driver, I take the 70,000-kilometer maintenance very seriously. The basic replacement of the three filters is a must: the oil filter keeps the engine running clean, the air filter ensures smooth air intake, and the cabin air filter removes dust and pollen. The brake system inspection is the top priority—measuring brake pad thickness, replacing deteriorated brake fluid, and cleaning out debris from the brake calipers. For the tires, it's not just about checking the tread but also measuring tire pressure and performing a wheel balance. The transmission oil came out dark, so I promptly replaced it to prevent gear wear. The ignition system wasn't neglected either—I replaced the entire set of spark plugs, and the acceleration noticeably improved. Finally, I used a diagnostic tool to scan the vehicle's computer and clear several historical fault codes. After the maintenance, driving on the highway felt smoother, and the steering wheel seemed lighter.
