You need to remove the wheel arch liner. Good luck.....
Addition:
Not on the new caddy you don't i.e the 05 06 etc....
can't believe you would have to do this on any car/van...think this is duff info
its like changing a light bulb and depends on the car model 2007 volkswagen beetle
Its under the motor
An ABS light on the 2002 Volkswagen Polo refers to the assisted brake system. When the light shines it means there is something currently wrong with the brake system and should be serviced.
Check bulbs, fuse, brake light sensors.
what do you have to do to change the center brake light
you have to open the trunk and behind the carpet you have to pull off, and then unscrew the bolt and push in the sides to open and then you will see a light bulb and then replace it.
The brake light switch is found behind the 1998 VW Beetles brake pedal. Reach it by removing the lower dash console to gain access to the nut holding the switch in place. Remove the nut then then the switch.
WHICH brake light?
Don't bother. The brake light switch on 1999 beetles (maybe all of them, actually) have been recalled. Unless you get it changed, the brake lights will keep going out. Call your local dealer and they should change it for free, mine did about 8 months ago. Still, this doesn't seem to fix the problem as my brake light is out. It may only be a burned out bulb though.
See sources and related links below for the brake lamp and light bulb list information.
The brake light bulb lamp part number will depend on if you have a 2002 volkswagen jetta wagon or sedan. See sources and related links below for more information.
how to change a brake light on 2002 Nissan altima