When i brake to a complete stop i get a scraping/judder on brake pedal cant be heard just felt but only happens sometimes and when i come to a complete stop. discs and pads are ok had them checked but they couldnt tell me why it was doing it?

Warped brake discs most likely caused by keeping your foot on the brakes when hot -for example at the end of a motorway slip road whilst waiting to join a round about after stopping from 70mph. You only have to do it once, and the brakes will judder forever more afterwards. Some cars are more prone to this problem than others.

Also check for...
- Faulty self adjuster or clutch ending its usefull life or a contaminated clutch plate (Renault 19 brake problems).
- The pads and/or shoes are glazed, either replace them or sort the prob then brake heavily to de-glaze them.
- The pads may be glazed/contaminated with brake fluid or the drum is slightly out of round, not a major prob.

Hope helped.

Loose Brake Caliper: The brake pads and calipers are designed to slow the vehicle when applied. The brake caliper holds these brake pads that are applied to the brake rotor . If the caliper is lose because the main caliper mounting bolt(s) are missing it will allow the caliper to ride against the inside of the rim producing a scraping noise. To check for this condition inspect the brake caliper mounting bolts to make sure they are tight and intact. If these mounting bolts are missing replace and tighten with new. Do not drive the vehicle in this condition, brake operation failure can occur. Worn Out Brake Pads or Shoes: The brake pads on your car are designed to slow the vehicle when applied. If the brake pads are completely worn out they will can create a scraping noise when the brakes are applied. This scraping noise is created when the pad is forced against the brake rotor in normal braking operation. To check for this condition inspect the brake pads in question. The brake pads should have composite material between the pad backing plate and the brake rotor, or on the rear of the vehicle brake drum and shoes. If a brake grinding noise is allowed to continue, brake operation failure could occur. The rotor featured below is a perfect example of what can happen if a brake grinding noise is left unattended.
When a scraping brake rotor is neglected, it will cause the brake system to fail due to the separation of the rotor hat (center) from the outer web (braking surface). Additional problems can occur include the brake pad to fall out completely or the brake calipers to blow out a piston. Either condition will cause brake operation failure. Do not drive the vehicle in this condition, brake operation failure will occur. Relocate Brake Rotor Heat/Dust Shield: When this brake rotor is in operation it produces heat and the rotor is subject the road side dust that can inhibit proper brake function. To help protect the brake rotor a shield is fastened to the spindle. If this shield becomes slightly out of alignment it can come in contact with the rotating brake rotor creating a scraping noise. To check for this condition support the car to remove the wheel in question. Next, rotate the brake rotor by hand to recreate the sound. Then inspect the air gap between the brake rotor and shield, reposition as needed and reassemble. Checking Axle Bearing Failure: An axle bearing is designed to support the weight of the vehicle while allowing the wheels to rotate. These bearings are manufactured with high grade steel that resists wear under extreme conditions. When an axle bearing fails it allows metal to contact metal under pressure with a linear motion creating a scraping noise. Once an axle bearing fails it cannot be repair, replacement is required. Remove axle bearing and replace with new and recheck. Some vehicles are equipped with a bearing hub assembly. The bearing below is the style of bearing is replaced by un-bolting the bearing hub assembly and replacing it with new. Other bearing designs include separated bearings that include inner and outer bearings with bearing races, a four piece set. Separated bearings require an inboard seal attached to the bearing hub. This seal rides on the spindle to hold grease inside of the bearing hub, keeping lubrication inside of the bearings.
Check for Tire to Body Contact: The tires on your car are designed to rotate with a minimum clearance between the body and the wheel. If this clearance is minimized by the wrong tire size or suspension modification or failure it can allow the tire to rub against the inner fender wheel which will create a scarping noise. To check for this condition inspect the cleaner between the tire and inner fender well. Check the suspension for spring failure or tire size to make sure the proper tires have been installed. This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya