how do I adjust my brake cable on a 02 citreon picasso?

Not familiar with the car itself but usually either on the handbrake end or the wheel end?

Try searching around behind the handbrake, follow the cable until you find two nuts together on the same thread, one is the adjuster the other is the lock nut, turn the adjusting nut clockwise to lengthen the cable casing, making the handbrake tighter and come on sooner, hope this helps!

Casper
March 2011

I assume that you mean handbrake. Under the car, will be an adjuster unit, connects to handbrake one end the other will go to rear brakes,

Sheepdog
March 2011