BMW M5 Forum and M6 Forums banner

1 - 17 of 17 Posts

·
Registered
Joined
·
39 Posts
Discussion Starter #1
Does anyone know a reputable place to rebuild my steering box? I have a pretty significant leak from mine. I put an order though a month ago through a dealer, but the part went from backordered to NLA. I also attempted to source one from BMW Classic, but they don't seem to offer it any longer as well.

This is the only thing I found, but I am hesitant of getting anything off of eBay and just went through a complete overhaul of the engine, trying to keep the car as original as possible.

Any help would be much appreciated!
 

·
Registered
Joined
·
90 Posts
I was able to get a factory rebuilt steering box for my e34 M5 about 4 years ago directly from ZF, the OEM supplier. It took about 3 months,well worth the wait,especially considering BMW pricing had just increased and ZF gave it to me for pre-increase price. Contact info: email address,[email protected]; I dealt with Billy Denton who was a straight shooter. He alluded to a rebuilder in Az. at the time, but said if they needed any parts besides seals they might not be able to access them. If you need a core, let me know. Hope this helps.

Vic
 

·
Moderator
Joined
·
10,450 Posts
i just replaced the steering box in my touring last summer. According to RealOEM, the servotronic steering box is still available, the non-servo box NLA. You could put a servotronic in, and if not electrically connected, it defaults to the heavier setting, i think, which isn't bad.
Part number is 32132226892
 

·
Registered
Joined
·
1,109 Posts
Hi Michael!

Where is the box leaking from? A few weeks ago, I had a Range Rover, with a leaking steering box top plate. The box looked identical to the M5's, although I'm sure it's not the same. However, I removed the top cover (undo the 4 bolts, then the cover does a combination of screwing off and prying off.

And then...MAGIC! A damned square-cut O-ring !!! And it's entirely responsible for sealing the top cover . Of course, the part was not available, but I had a perfectly fitting, but not square-cut, o-ring, in my collection. No more leaks! The vehicle was at the shop again today, just for an oil change, and the steering box is perfectly dry.

The vehicle needed alignment of the steering wheel when done, by the way.
 

·
Registered
Joined
·
39 Posts
Discussion Starter #7
Hi Michael!

Where is the box leaking from? A few weeks ago, I had a Range Rover, with a leaking steering box top plate. The box looked identical to the M5's, although I'm sure it's not the same. However, I removed the top cover (undo the 4 bolts, then the cover does a combination of screwing off and prying off.

And then...MAGIC! A damned square-cut O-ring !!! And it's entirely responsible for sealing the top cover . Of course, the part was not available, but I had a perfectly fitting, but not square-cut, o-ring, in my collection. No more leaks! The vehicle was at the shop again today, just for an oil change, and the steering box is perfectly dry.

The vehicle needed alignment of the steering wheel when done, by the way.
Hey Chris, not exactly sure where the leak is. The top of the box is usually wet, but I haven't ever seen an active leak (only the puddle that inevitably forms overnight). I'll call the shop that I took it to here in Virginia Beach and see if they remember exactly where they found it. I sent a message to the seller who has the rebuilt units on eBay (BuyAutoParts) and they sent this reply back:

"All seals and bearing are replaced. The gears and shaft are inspected and replaced if they do not meet OE specs. The boxes are then pressure tested and centered. All though its always a good idea to verify center before install."
What do you think they labor would be to get to the box and reseal it? I have a feeling the cost would get pretty close to just paying for a rebuilt box from the seller on eBay, which might also be in better shape given the new bearings etc, given the small play in my box ($465 Remanufactured Genuine Power Steering Gear Box Gearbox for BMW M5 | eBay). Before I do that, I'm going to check on the place in Arizona that was suggested above and see what kind of cost a rebuild would entail.
 

·
Registered
Joined
·
1,109 Posts
I can tell you that it took me just over an hour to reseal the top cover of the box I did....would have been faster, but I'd never done it before. The labor to R & R the steering box is 3.2 hours; the top cover seal is done with the box in place.
 

·
Registered
Joined
·
208 Posts
But isnt it the case that the seals would have a limited effect, if not leaking, since the real issue is wear on the worm gear which contributes to the loose feeling?

Sent from my SM-G935T using Tapatalk
 

·
Registered
Joined
·
758 Posts
But isnt it the case that the seals would have a limited effect, if not leaking, since the real issue is wear on the worm gear which contributes to the loose feeling?

Sent from my SM-G935T using Tapatalk


Aye, there's the rub.

May companies offer a "resealed" box however the internals aren't replaced. I'd rather a tight leaky box (insert appropriate innuendo) than a loose dry box, ANYDAY.




Sent from my iPhone using Tapatalk
 

·
Registered
Joined
·
208 Posts
Mine is dry as a bone but as loose as a goose :( the gear really needs replacing

Sent from my SM-G935T using Tapatalk
 

·
Registered
Joined
·
90 Posts
I have a box with about 45k miles on it that I'd sell. I bought it with a claimed 42k miles on it and replaced it along with most everything else in the front suspension a few thousand miles later. I was on a prolonged quest for getting my e34 as tight or tighter than it was when new. That included getting a new box, et al.
 

·
Registered
Joined
·
208 Posts
So whats the status of this box that you replaced? How tight/loose? Mine has 120k mi on it.

Sent from my SM-G935T using Tapatalk
 

·
Registered
Joined
·
39 Posts
Discussion Starter #16
I have a box with about 45k miles on it that I'd sell. I bought it with a claimed 42k miles on it and replaced it along with most everything else in the front suspension a few thousand miles later. I was on a prolonged quest for getting my e34 as tight or tighter than it was when new. That included getting a new box, et al.
Do you still have the box? I still don't have enough posts to PM...
 
1 - 17 of 17 Posts
Top