Where is the obd interface of BMW 3 Series?

At the foot of the main driver. Put your head into the position of the clutch, turn your head and look up. You can see an interface, OBD interface, with a flashlight. More relevant information is as follows: 1. Chinese translation of OBD is "on-board diagnosis system". This system monitors the running state of the engine and the working state of the exhaust aftertreatment system at any time, and will give an alarm once it is found that the emission may exceed the standard. When the system fails, the fault light or warning light used to check the engine lights up, and the OBD system will store the fault information in the memory, and the relevant information can be read in the form of fault codes through the standard diagnostic instrument and diagnostic interface. According to the prompt of fault code, maintenance personnel can quickly and accurately determine the nature and location of the fault. 2. As the communication interface of the vehicle monitoring system, the 2.OBD interface is mainly used to provide various working conditions data of the vehicle, besides reading the fault codes for vehicle maintenance. In addition to the data displayed by on-board instruments, there are much more data actually recorded in the driving computer, including the actual fuel consumption records, battery voltage, air-fuel ratio, throttle opening and so on of many vehicles without the display screen of the driving computer. Data such as the number of knocks are recorded in the system. However, manufacturers will remove the display screen of the driving computer from the model with lower configuration because of the price configuration and other factors, which leads to users unable to refer to these useful data, so some special driving computer display products have appeared in the market.