Hydraulic pump leaks oil

G

Gr3g4

Member
 Slovenia
I have ordered the replacement hydraulic unit for my Z4 E85 recently from roofmotors.co.uk, because the old one died. Today we are installing it and we have some problems with it. We switched all the hydraulic lines and power cables from old to new as they were on old unit and now after testing it, the motor works, but the unit leaks oil from everywhere on the unit and the roof doesn't move. What could be the problem? The oil is just over the + sign, so this should not be the issue.

And can some one also elaborate what exactly do they mean by the label on the package:
Take care to ensure that the release pin on the pump body is seated correctly & lubricated before final installation.
Carefully use a 5mm socket or pliers to pull the pin slightly proud of the body.
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What release pin? Could this be the problem? Please help if you can, I'm desperate. :(
 
Have you made sure the black O ring between the pump and the motor is correctly seated before screwing them together? And the 3 copper washers are on each hydraulic line on the pump?

Regards to the pin, on the side of the pump there is a gold pin under the release cable which they are saying to pull out fully with pliers.
 
Ok, we figured out the problem. roofmotors send me a defective hydraulic pump. There wasn't any o ring, so no rubber seals between the motor and the pump. The pump also had worn out drive shaft or what is it called, sorry but English is not my native language. I'm very disappointed with their refurbished unit and service. They don't even respond. I purchased the whole unit and not just the motor because I wanted to do just a simple swap. Now my service guy wasted one and a half day (and my money for labor) for wondering what the problem was and not thinking it could be the unit itself. We included another mechanic today which is a specialist for this kind of stuff and he dismantled the new unit and then my old one and then we saw what the problem was. I need to pay for this guy's hours too btw. So thanks roofmotors! :chairfight: After reusing my old hydraulic pump and their motor there were no leaks and the roof now works though.
 
That is not cool at all :(

I paid the same company to refurbish my roof pump (not motor). I re-installed it afterwards but still have the same issue as before the rebuild. I don't know the details, but to me, their test rig doesn't seem to be sophisticated enough to guarantee that a motor/pump assembly is working as it needs to before they return them to their customers.
 
ph001 said:
Sounds like roofmotors are a set of cowboys.
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I'm not quite ready to reach that conclusion JUST yet, but I wouldn't call myself a happy customer. I'll report back when it's all over and done with.
 
I'm on vacation right now so I'm not gonna complain to them just now. I will the week after next one though. I think some kind of compensation is in order. I will post pictures of this garbage they send me also. The pin they are referring to is golden 5mm socket thingy which on their unit was completely worn out so the only way to turn it was with pliers. I'm mad as hell but I don't want to think about this now while I'm on my vacation.

I'll report back. :thumbsup:
 
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