Diff lock actuators: anyone has repaired the small rubber boot yet ?

[Huw Powell]

> Both diff lock actuators (857 711 995A) on my car suffer from a leak at
> the little rubber boot. The diaphragm is OK, as well as the plastic body
> and both vacuum nipples. Audi wants 255$ for each one. 
> 
> So anyone has an idea how can we re-seal the plunger with the body ? 
> 
> The OEM setup is a very thin and supple rubber boot that slips over a
> 15mm plastic tube at one end, to a 3mm shaft at the other end. Overall
> length is 30mm. The stroke of the plunger is 20mm, so the small end fits
> into the big end when compressed. 

How close are the "boots" that are part of late 80's/early 90's power 
door lock actuators?

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/