If the brake lights of the vehicle are not working the driver at the back is less acute to speed changes of the car in front thus car crash might occur.
Audi a4 light bulb change.
This video is applicable.
Plug the electrical connector into the two prongs on the back of the bulb.
Replace the cover then slide the headlight back into place and reconnect the bulb assembly.
Take out the headlight housing and remove the cover from the back.
Insert your new bulb to the headlight housing.
If your a4 has this type of bulb we do not recommend that you attempt to change it yourself.
Brake light proper performance is very important otherwise ear end collisions can occur.
Snap the cover to the back of the headlight housing.
Disconnect the bulb assembly by prying upward on it with a flat head screwdriver.
When you change the headlight on your a4 it is important to not touch the glass part of the bulb with your fingers because the oil from your fingertips will cause that part of the bulb to burn hotter which significantly shortens the life of the bulb.
Pull the old bulb out and replace it with the new bulb.
Audi replacement bulb guide this automotive replacement bulb guide is used for general information only we are not responsible for any mistake that might be listed on this bulb guide.
If no red beam comes from any of brake lights do not think twice and replace the bulb.
1a auto shows you how to repair install fix change or replace the broken damaged cracked faded cloudy or chipped headlights.
Troubleshooting for burnt out turn signal bulbs in your a4 is relatively easy turn your hazard lights on and check the front of your a4 and then the back whichever side is not illuminating is the side with the burnt out bulb.