I recently tried multipurpose dusting spray it worked for about a week but now slugish again any better long term fixes guys :(

Try washing them...

The manual states:

The belt webbing must always be kept clean. Soiled belt webbing may

impair proper operation of the inertia reel

Seat belts

– Keep the seat belts clean!

– Wash seat belts which have become soiled using a mild soapy solution.

– Inspect the seat belts regularly to ensure they are in good condition.

Belt webbing which has become severely soiled may prevent the inertia reel from

reeling up the belt properly.

WARNING

• The seat belts must not be removed for cleaning.

• Never clean the seat belts chemically as dry cleaning may destroy the

fabric. The seat belts must also not be allowed to come into contact with

corrosive liquids (such as acids etc.).

• We recommend that seat belts which have damage to the webbing, the

connections, the inertia reel or the lock should be replaced by a Škoda

Service Partner.

• Inertia reel belts must be completely dried before being reeled up.

I found that a god dollop of Mr Sheen spray on the belts did the trick . Pull back, and spray, then move backwords, and forwords, and it it wrkd wonfers

Ill give it a whirl