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in the fuse box
inside door on side of the vent panel
If the " BRAKE " warning light in your gauge panel is on , either your parking / emergency brake is on and if not , YOUR BRAKE FLUID LEVEL IS LOW in the brake master cylinder located in your engine compartment
remove Radio ,remove lower dash panel complete with glove box. remove heater box.
The 2005 Volkswagon Touareg OBD 2 port is on under driver side dash next to kick panel
If your brake light is on , either the parking brake is on or the BRAKE FLUID LEVEL in the brake master cylinder in your engine compartment IS LOW
behind the panel,next to the parking brake.
Check the bulbs, if o/k check the wiring to it
almost out of brake fluid,check this immediately.
It means there is brake problem somewhere, maybe the back brakes.
on the extreme right of the dash there is a panel that hides the clutch and brake master cylinder reseviour you pull this panel backwards toward yourself to expose tank
it may indicate that the brake fluid is low