A4 2.5 V6 Auto "Boing" noise when braking

[KAYTSD]

Can anybody give any clues as to what could be the problem. We have an A4 that makes a "boing" noise when braking. It's not a broken spring, and the brake pads are fine. Could it be something with the calipers? Thanks for any help.

[fourringsrus]

Strut top bearings, ball joints, shockers etc , worth a look at all these points

[warptechno]

Sounds like your ABS could be kicking in. Might be best to run it through VCDS and check for any fault codes relating to the ABS sensors. Might be worth a look if none of the above suggestions have been fruitful...