Going hydraulic! And a coding query for you experts

[Darkangelv2]

Another thought I've just had, all the conversions I've seen are on M54 engines I wonder if it's any different on the N52 engine.

AFAIK there havent been any N52 hydraulic conversions but I will be interested if you get it working

We don't have the right pulley config do we?

[Steve84N]

If they don't I think the non active steering version of power steering on the e90 330i with the n52 engine is a purely mechanical system. So in theory the n52 pump and reservoir will be useable so if you can mate that to the e46 rack/pipework it should work. However the only real issue I can think of is the pressure from the n52 pump may differ to the m54 making the steering feel heavier/lighter.

We have the N52 in a pre LCI e91 330 and whilst it's hydraulic steering the pump is electrically driven. It was the beginning of the end but does offer small improvements in mpg as the pump isn't active when not required. I really wish this as far as they went as it seems the best of both worlds but apparently a couple of mpg is worth sacrificing feedback on the most important part you constantly interact with...

[adam1985]

Another thought I've just had, all the conversions I've seen are on M54 engines I wonder if it's any different on the N52 engine.

AFAIK there havent been any N52 hydraulic conversions but I will be interested if you get it working

We don't have the right pulley config do we?

Just been looking on realoem and google image searches and looks to me like there are a couple of models with N52 engine and hydraulic PAS including e87 130i, some E60 models and some e90 models. Not sure is everything would work but I guess you would need e46 rack and e60/e90 pump, reservoir and aux belt.

Not sure if its that simple?! probably not

[Steve84N]

Did you not read my post, the e90 (and therefore those others mentioned too most likely) use hydraulic steering with an electrically driven pump.

[adam1985]

Did you not read my post, the e90 (and therefore those others mentioned too most likely) use hydraulic steering with an electrically driven pump.

I was looking for aux belt driven pumps not electrically driven

[MACK]

Did you not read my post, the e90 (and therefore those others mentioned too most likely) use hydraulic steering with an electrically driven pump.

I was looking for aux belt driven pumps not electrically driven

Just to further clarify what I said earlier, the optional active steering versions of the e9x as well as 1/x3 n52 models have pumps that are belt driven with electronic control. Where as the standard non active steering versions are purely old school mechanical. Worth noting that the active/non active models also have an entirely different pas res from the active steering version as well.

[portculisz4]

I know this is an old topic but hope you are still able to respond to questions. I was interested in your statement in your earlier thread in this Topic - 'So I detached the motor and removed the pinion', I have had my motor out a couple of times (unsuccessful repair) so familiar with motor construction, when you say 'pinion' are you referring to the motors worm geared shaft, if so, exactly how did you remove it ?

[Sidewaze Samm]

I know this is an old topic but hope you are still able to respond to questions.

More likely to get a response if you notify the OP by including actual quote from the post referenced. But then it appears mjennings23 hasn't been active since April...

[portculisz4]

Thanks for the suggestion, I stumbled across his old thread through numerous searches, I did include the quote in inverted commas, it was a shot in the dark that he would be still be monitoring the forum but nothing lost in trying.