U3858 Audi Fault Code
If you want to know how to repair U3858 OBD 2 code, it is necessary to find out what type of fault it is. The reason for this is that each type of fault needs different repair steps.
Meaning of Audi U3858 OBD/2 ErrorU3858 Code Check :
U3858 OBD 2 code troubleshooting is a process of resolving the problem with the car engine by inspecting the error codes and checking for any specific issues.
| U | Network (U) Code |
| 3 | Throttle/Pedal Position Sensor/Switch A Circuit Intermittent |
| 8 | Vehicle Speed Output Circuit |
| 5 | TFP Valve Position Switch-Drive Without Drive Ratio |
| 8 | Electrostatic Oil Separator Circuit Failed Open |
Common U3858 Error :
Because many things can trigger the error, finding the root cause can be tricky. This often makes repairing code U3858 a long and arduous task. Other times, more than one problem can trigger this code.
It's advisable to leave this one to the professionals. In most cases, fixing code U3858 does not cost a lot to repair. Once the code U3858 is repaired, your car will run better, have more power, and get better fuel mileage.