E34 530i hydro brakes/ pwr steering

[porkhunt]

Hi Y'all...
Australia model 10.93 E34 530i, just ticked over 350,000 km's.
I have the hydro brakes, similar to e28 M30's, and a power steering system which doesn't match the real oem description.
Hang on Mr Erik, I'll get the build number.. WBAHE22060GE78640
I have a leak which I suspect is coming from the main line from the regulator? to 'under the front of the engine, presumably to the steering pump, or something. (I'm not pulling it apart until I get parts...)
It looks as if the main line has been touching the sensor, so think thats the leak.
Sorry I cant be more specific, but I cant find any info specific to my model. which is what I'm asking basically...
All I want is an oem diagram and I can buy a new hose.
Pretty sure it's rubbed through on the metal...

[porkhunt]

Update. Sorted, was sensor, took it to 'The german' ordered the part...

[shogun]

That is interesting, that also a RHD E34 530i with the M60B30 V8 has a hydraulic brake booster unit, similar to my E32 750iL , parts are listed here http://www.realoem.com/bmw/enUS/partgrp?id=HE22-EUR-05-1993-E34-BMW-530i&mg=34
Brake servo unit 1 34331161950
you mentioned, that the sensor was the problem, I assume one of the 2 sensors at the proportioning valve/pressure regulator http://www.realoem.com/bmw/enUS/showparts?id=HE22-EUR-05-1993-E34-BMW-530i&diagId=34_0457
04 BRAKE PRESSURE DIFFERENTIAL SWITCH 1 34331150922
09 OIL PRESSURE SWITCH M10X1 ZYL. 1 34351182270
http://www.realoem.com/bmw/enUS/showparts?id=HE22-EUR-05-1993-E34-BMW-530i&diagId=34_0419

usually the Pentosin is leaking around the 2 spades/connectors for the cable loom, the plastic gets brittle and then it leaks, also happened on my E32 750.

Just for info, as your hydraulic brake booster units costs more than $1300 and of course will also start to leak one day, Jay Stratton repairs brake boosters and brake master units for various BMW models, good quality and good prices.
I also recently sold him a defective brake booster unit from an E31 850/E32 750 which he wanted to have as core to repair and keep as stock, so he can deliver immy when someone orders ex stock and the buyer returns his defective unit to him as core.
Here some links, updated by Jay, he recently sent me an email: quote: Erich,
I just added # 4 & # 9
I have had to change to all new URL's to all of my websites, BMW & AUDI
Fellow Forum Members,

All my websites now have a new URL's, as Google recently made upgrade changes to Picasa. All of my old URL's, no longer work correctly.

1. BMW Ate Hydraulic Brake Booster Servo DIY repair kit and rebuild service. e23,e24,e28,e32
https://goo.gl/photos/zVD7cFj3L6WNmVUG8

2. BMW SLS (self leveling suspension) pump DIY repair kit and rebuild service. e23,e24,e28
https://goo.gl/photos/eZCBHcaeY7dZ8jte7

3. BMW ZF PSP (power steering pump) rebuild service. e23,e24,e28,e32
https://goo.gl/photos/VTfSanWfKbSHSgMu7

4. BMW ZF PSP Tandem Vane (dual vane) rebuild service. e31,e32
https://goo.gl/photos/ENtc5GSWhusmUmSR9

5. BMW ZF PSP rebuild service. early Cast Iron. e3,e9,e12
https://goo.gl/photos/GfNKGk5qPfKHGiXo6

6. AUDI Ate Hydraulic Brake Servo Booster, Cast Iron early '80's
https://goo.gl/photos/kHFefY3Wuq1RqA5F8

7. AUDI Ate Hydraulic Brake Servo Booster, Aluminum newer style
https://goo.gl/photos/QCcFGTqdeeGDSgC48

8. My BMW m6's site
https://goo.gl/photos/K3S9EkQ9veNrNDCf7

9. LUK LF-30 Rebuild Kit
https://goo.gl/photos/tkEAYPLtMrsW1KjK7

Best, Jay
---------------------------------


Vehicle information
VIN WBAHE22060GE78640
Type code HE22
Type 530I (EUR)
E series E34 ()
Series 5
Type LIM
Steering RL
Doors 4
Engine M60/1
Displacement 3.00
Power 160
Drive HECK
Transmission AUT
Colour ALPINWEISS 2 (218)
Upholstery (0203)
Prod.date 1993-05-25
Vehicle options
S240 Leather steering wheel
S288 BMW light alloy wheel, cross spoke 29
S302 Alarm system
S354 Green windscreen, green shade band
S401 Lift-up-and-slide-back sunroof, electric
S438 Fine wood trim
S472 Armrest, front, driver/passenger
S498 Headrests, rear, mechanically adjustable
S508 Park Distance Control (PDC)
S530 Air conditioning
S540 Cruise control
S553 On-board computer IV with remote control
S564 Interior light package
S687 Radio preparation
L810 National version Australia
Vehicle options
S818 Battery master switch
S850 Dummy-SALAPA
S903 Fotofahrzeug
S916 ENTWICKLUNGSFZG OHNE KONSERVIE
S925 Dummy-SALAPA

[porkhunt]

Thanks for the info, interesting options list. Gives me proper build date, which may help me solve the driveshaft dilemna (ordered a shaft with a smaller spline, dunno what it's off?).
I have a german master mechanic deals with all high end euro's and doesn't mind sparing me a minute for DIY's.
As you said, was the sensor leaking, and have ordered a replacement (X both).
I need to work on my p/s unit, steering has a slight 'dead spot' and it leaks somewhere, may have been switch whole time?
But I take it I cannot transplant a 'normal, ps pump into it?
As always, thanks for your help.
Stephen

[shogun]

From the E32 750 I know that one can install a single power steering pump instead of a dual pump. Or you just make a return line that the fluid always goes back into the reservoir, just make a u-turn for feed and return line.
LAD/self levelling elimination + LAD shock repair info, and a company in Poland also repairs LAD + EDC shocks http://www.bimmerforums.com/forum/showthread.php?1379064-LAD-self-levelling-elimination-information&highlight=LAD%20bavauto.com
http://www.nagengast.pl/regeneration-en.html

[632 Regal]

.
Australia model 10.93 E34 530i,

I had a 95 530 built 6/93 US. Driveshaft had the larger input yoke a the rear end, bigger differential output shafts. Tried to swap to my current 95 530 which has all the smaller splines/yokes. If you never tried to swap between the years no one would ever know. Had to swap the complete thing.