Got a very slow leak in my 2002 147 selespeed system (requires topping up every month or so) - otherwise get the gear shift to neutral occuring after a stop (embarrasing at traffic lights).
Fluid drips in the centre of the engine bay.
Dealer says I have a crack in the actuator and it needs replacing - at A$4000.
Given I think the car is only worth 3-4x this it is a lot to consider spending.
Anyone else heard of a cracked actuator that only leaks very slowly??
Not heard of a cracked actuator, but in my experiance, there are 2 common areas that will give leaks;
On the rear of the actuator, there is a backplate bolted to it, with 6 torq 25 screws. The backplate houses the vertical plunger. There are 2 small o-rings that seal the backplate to the actuator main body, they sometimes leak.
If its not those, the vertical plunger often gets coated with surface rust, due to moisture in the area, and when moving up / down its travel, it won't seal as it should (because of the rust deposits running along the seal).
Don't get carried away stripping it straight away tho, the unit will be under pressure and needs depressurising.
Also, the rear position sensor (potentiometer on the back plate), is spring loaded onto the steel finger, so will be easier to remove that first, taking note which way the spring tension is.
I'll upload some pictures later tonight.