We Are Finding that Rebuilds are being offered by some companies for these units however these are not full service rebuilds it is not possible for the O.E shock to be rebuilt fully . so you can get a leaking seal replaced, Bear in mind the BMW Warrantied life expectancy of a rear Shock absorber is approx 30,000 Miles. It is sometimes best to just bite the bullet and go for a replacement damper unit like the Wilbers 5 Year warranties and rebuildable
We Are Now offering ESA & Non ESA Shock Repairs for leaking shocks for R1150/1200 like above this assumes the Shaft is in a serviceable state to be reused.
We Are Also offering Diagnostics for ESA Faults ,
Wilbers Damper units £695 for reuse of ESA Preload & Damping stepper Motor Foot. Replacement Damper Control stepper Motors
we are also looking into K1200/1300 Shock rebuilds so please ask .
Wilbers using O.E ESA Motors
& old damping failed BMW unit
awaiting wilbers treatment