There might be a squeaking noise when driving slow in your 2000 Beetle because your suspension needs to be replaced. The squeaking can also come from the universal joint.
ball joints upper and lower control arm
Probably strut mounts or control arm bushings.
no it makes cranky noises
Check your ball joints and your spring hangers
loose belts
Your shocks are going out. You may also want to replace the springs as well.
Alternator belt in need of Tightening is One Squeaking Noise.
Loose belts
The sway bar end links could be damaged on a vehicle that is making that noise. Also, check the dust shields on the front brake assembly.Ê
check tension on fan belt(s)
The brake pads are worn down. Many brake pads have a built in noise maker designed to squeal when the pads are nearing end of life.