What problems will BMW cause if it doesn't clean the throttle?

Problems caused by BMW cleaning dirty throttle;

(1) affects the opening accuracy of computer recognition angle,

(2) Unstable idle speed or poor air intake

(3) The phenomenon of weak acceleration, loud noise, high fuel consumption and car shaking.

(4) The engine appears incomplete combustion, performance degradation, increased fuel consumption and increased exhaust temperature.

Five functions of regular cleaning:

(1) can effectively clean and dredge the glue and carbon deposit of the fuel injector and keep the fuel system clean. ?

(2) It can clean the waste gas circulation system, reduce waste gas emission and save fuel, thus effectively protecting the oxygen sensor and the three-way catalytic conversion device.

(3) It is helpful to prevent the symptoms such as knocking, unstable idle speed and poor acceleration caused by colloid and carbon deposition.

(4) It can eliminate the carbon deposit on the valve seat, lubricate the valve and valve guide, improve the sealing performance, restore the cylinder pressure and increase the power. ?

(5) It can blow away the carbon deposit in the combustion chamber, lubricate the upper area of the cylinder, reduce the wear of the piston ring and prolong the service life.