What is the easiest way to tell if the exhaust valve on an Audi car is broken

1. Start the tachometer, the speed is above 1000 rpm, the idle speed is unstable, listen to the sound, and you can know that the exhaust valve is broken.

2. If the exhaust valve is broken, the dashboard will show that the engine fault light is on, but this situation does not affect the continued use, only after replacing the new exhaust valve, and then clearing the fault light, can it be restored to normal.

Exhaust valves are actually called "oil separators", or "pressure control valves". The engine exhaust valve is mainly responsible for controlling the exhaust gas produced when the car is burning. Due to the operation of the exhaust valve, the car will reduce the emission of nitrogen oxides, which is good for the environment.

At the same time, because if the amount of exhaust gas involved in combustion is too large, it will affect the power of the engine, so the exhaust valve can also ensure that the engine has sufficient power.

Extended information: Exhaust valves are also known as oil separators and pressure control valves. Installation between the compressor outlet and the condenser inlet improves heat transfer in the condenser and evaporator by separation.

The working principle of the exhaust valve: the high-pressure gas (gaseous working fluid and lubricating oil) from the compressor enters the exhaust valve, enters the guide vane of the exhaust valve, flows in a spiral shape along the guide vane, and separates the lubricating oil from the working fluid gas by centrifugal force and gravity, leaving it along the inner wall of the cylinder. The working fluid gas is drawn out of the exhaust gas valve by the central pipe through the multi-empty baffle.

The separated lubricating oil, concentrated in the lower part of the oil separator, can be discharged at regular intervals, or the float valve can be used to automatically return the lubricating oil to the crankcase of the compressor.

Organic oil will be sprayed from the dipstick tube.

Methods for judging if the wastegas valve is bad:1. Look at whether there is blue smoke in the exhaust pipe, after the exhaust valve is damaged, it will cause the car to burn engine oil, and the exhaust blue smoke is serious;

2. Due to the failure of the exhaust valve, the engine oil will burn quickly, and the consumption will increase;

3. Open the cap of the oil filler, if there is a serious inhalation (that is, it will suck the cap), it indicates that there is a problem with the exhaust valve.

Causes of Wastegate Damage:

1. The quality of the exhaust valve itself;

2. Improper maintenance;

3. Fuel quality problems;

4. The exhaust valve is aging, and the exhaust valve works at high temperature of the engine, and it will age after a long time.

Turn on the car to see if there is blue smoke in the exhaust system, and you can also see if the exhaust valve is blocked, if the exhaust valve can be used normally, it means that the exhaust valve is not broken.

You can see whether there is blue smoke in the exhaust pipe, and you can also see whether the cap of the engine oil has inhalation, so that you can judge whether the exhaust valve of the car is broken.

It can be judged by the state of the car, by the accelerator of the car, and by the exhaust of the car, all of which can be judged directly.

I think you can detect it by the engine of the car, or you can detect it by listening to the sound, and then see if there is any abnormal noise.

I think if you want to tell if the exhaust valve of a car is broken, you can go to a professional car repair shop to check it, because those professionals know more than us.

A broken exhaust valve can cause unstable idling, and the engine shakes significantly at idle.

The exhaust valve is also called an oil-air separator, and this device is very important.

When the engine is working, a part of the gas enters the crankcase through the piston rings. If the gas in the crankcase is not discharged, the pressure inside the crankcase increases, making it difficult for the piston to move downward.

If the gas in the crankcase is emitted directly into the atmosphere, it will pollute the environment.

So the engineers designed the crankcase ventilation system. A key component in this system is the oil-air separator, also known as the exhaust valve.

Part of the gas in the crankcase is oil and gas. If the exhaust gas in the crankcase is directly introduced into the combustion chamber for combustion, it will cause the engine to burn oil, which is not good for the engine, and the pollutants in the exhaust gas will also exceed the standard.

Exhaust valves are used to separate oil and gas in gases. If the exhaust valve is broken, the oil consumption will increase significantly, and the three-way catalytic converter will be seriously damaged.

Therefore, when the exhaust valve is damaged, it must be replaced in time, otherwise the engine or three-way catalytic converter will be damaged.