The BMW mini R55 gearbox was frustrated in shifting gears.

Change the original gearbox oil, a set of spark plugs, and clean the accelerator.

Clean the lower throttle. Generally, the throttle is cleaned every 20,000 kilometers. When cleaning, carburetor cleaner should be used to treat stains. Some cars need to be matched after cleaning, and some cars don't, which can reduce fuel consumption and reduce the problem of vehicle starting jitter.

Mini is a car brand owned by BMW after being introduced by British car company. Its length, width and height are 3832mm, 1727mm and 1453mm respectively, with a wheelbase of 2495mm and a top speed of 193km per hour. Its body structure is a three-door four-seat hatchback, 1.5T65438.