
Theoretically, you can immediately schedule Subject 4 after passing Subject 3. Article 31 of the regulations states that the vehicle management office shall accept applications from those who meet the requirements for a driver's license and arrange exams according to the scheduled date. Below is relevant information about the driving test: Exam sequence: The exams must be taken in the order of Subject 1, Subject 2, and Subject 3. Only after passing the previous subject can you proceed to the next. After passing the Subject 3 road driving skills test, you are eligible to take the safety and civilized driving knowledge test. Reasons why you cannot take Subject 4 immediately after Subject 3: Due to the high number of test-takers in the examination center, including those who have passed, those who have failed, and those undergoing simulation training, the staff are very busy. Each person is only allowed to take one test per day, and it is not possible to take two tests consecutively. The staff also need to print score reports and upload results online.

In Xi'an, after passing the third subject of the driving test, scheduling the fourth subject is usually quick, as was my case. Around 11 a.m. on the day of the exam, feeling relaxed, I immediately checked the scheduling status on the Traffic Management 12123 app. Luckily, there were two available slots for that afternoon, and I booked the 3 p.m. session. However, I heard that if there are many people, like at the Xiaozhai or High-Tech Zone test centers, you might have to wait half a day or a full day—just refresh the app a few times. My advice is not to delay; check the app right after the exam, and you can usually schedule within an hour or two. The fourth subject isn’t hard but has a large question pool. I used the Driving Test Prep app to practice whenever I had time—familiarizing yourself with the rules will help you pass. Remember to bring your original ID and payment receipt to avoid delays. Overall, the process is smooth; just stay confident.

In the Xi'an area, the process of scheduling the Subject 4 test after passing Subject 3 is quite fast. I usually use the official 12123 APP for operations. After completing the test, I log directly into the scheduling module, which updates in real-time. Most of the time, there are slots available on the same day or the next day. Don’t wait until the next day to check, as you might miss your preferred time slot during peak hours. If you can’t schedule it immediately, don’t worry—the system refreshes every half hour. Try again in the afternoon or evening, and you’ll definitely find a slot. It’s advisable to choose a nearby test center in advance, such as the North Passenger Station, to save travel time. Also, don’t neglect your Subject 4 review—download a practice app and go through the questions a few times a day; all the knowledge points are available on your phone. Overall, the experience is good, and with a bit of patience, everything will go smoothly.

After passing Subject 3 in Xi'an, you can directly book Subject 4, but the timing isn't fixed. Generally, it can be scheduled immediately or take up to half a day at most. I personally tested it—clicking the booking button on the app brings up a list of available slots, and you can pick any open slot, but act fast without hesitation. Busy test centers like Qujiang might schedule you for the next day, but it's no big deal—just keep an eye on system updates. Use this time to review Subject 4 questions thoroughly, and you'll find it easy to pass.


