the TÜV wants to divorce us

Hello Saabschrauber u. Bastler! Now it has caught us, the TüV wants to divorce us! After I have already invested a lot for the HU of my 9000 CD 2,3 Softturbo, the (free) workshop of my trust has found that the ABS unit is defective (the right rear caliper is no longer supplied with brake fluid). Does one of you still have such a part lying around meaningless and would like to silver it possibly ? Thanks already in advance for the trouble.