The PF gearboxes are supposed to be v reliable compared with the FL boxes. However, it is normally highly recommended to get the box serviced at a ZF approved (or other recommended) gearbox specialist. The filling routine needs to be undertaken carefully (at the correct temperature etc). Some of the behaviour you have described (limp mode on braking, for instance) could be level related.
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
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