These are the 2 strange codes. The other strange thing is that there is no any fault on the Servotronic. My latest thoughts are that not every GBBF 3 has Servotronic function.Just a shot in the dark, but run a full car diagnostic with ISTA-D and see what the results are. Any strange codes?
In the pic here (mid right in the photo) the wires(like I have) coming from the rack are brown and red/purple, and in the photo on the right are black/white and brown/black. Where did they change and what matches what? Sorry I feel so out of sorts doing this I have been trying to figure this out on my own.EDIT:
On the wds diagram on the first page, pin 5 is the Black/Brown wire and pin 6 is the Black/White wire. Had to figure out what SW/BR and SW/WS meant.
Edit 2: Feeling stupid because this information was quoted in my first post. I think I have information overload
Here is an updated photo:
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as long as you have a jbffe3 you can hook it up and code it then it will work 80%, if you want 100% you will need to upgrade your steering pump to a 1m/m3 steering pumpSomeone mentioned on E90 post that there is a restrictor built into the high pressure side of the power steering lines on older BMWS to make the steering feel heavier. Pretty sure the same restrictor is present in the N5x steering line. I might play around with removing it to see how light the steering becomes. Might be considerably easier than trying to get servo to work... Or, someone produce a slight overdrive pulley for the pump... No one seems to be able to get servo retrofitted correctly.
the pinout is somewhere in this thread...iirc it goes directly from the motor on the steering rack to the jbbfeDoes anyone have a photo of the connection to the JBFFe and the connectors?
Where does it enter the DS firewall, do you have a pic of that please?!I finally finished the wiring for the Servotronic. Now to just get the coding done.
I started by tracing a wire the entire path I wanted to run the wire and then extended the harness so it would reach:
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Then picking up where I left off from the ecubox, I ran the wire under a piece of rubber trim across the engine bay on the firewall over to the DSC area:
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Then go down and over until you can push it behind the cardboard/cloth cover:
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Then hitch onto the wiring loom that is here and follow it out the hole and across to the fender liner:
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And then you will be able to run the wire down to the other plug:
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Now you're done, but I actually recommend that you run the wire through the firewall on the driver side instead, and then run the cable under the dash, but this is one way to do it.
I'll have to read back through the thread. Lots of info here so I am not even sure what applies to me lol. 2011 135i so I am guessing I have JBBF3. You make it sound like I can just wires up the servo and it should operate fine (not full assist but better than nothing?) No coding?the pinout is somewhere in this thread...iirc it goes directly from the motor on the steering rack to the jbbfe
unfortunately i only have a jbbf2 and dont feel like retrofitting one for steering assist so i cant help on this
Pretty sure there is coding involved, and from what I recall there were just not as many options available in terms of refinement.I'll have to read back through the thread. Lots of info here so I am not even sure what applies to me lol. 2011 135i so I am guessing I have JBBF3. You make it sound like I can just wires up the servo and it should operate fine (not full assist but better than nothing?) No coding?
Alternatively, I am going to look into removing shims from the power steering pump pressure regulator. The in-line restricter that I had previously mentioned IS present in the high pressure line but removing it would actually make the steering heavier (from what I understand anyway). But, the E46 M3 guys used to ADD shims to the power steering pump to make the steering heavier so I believe removing one or two of the factory shims might give me the 20% boost in assist I am looking for. Might be easier than the multiple 10 page long threads that getting the servo to work has created lol.
Finally going to try to tackle getting servotronic hooked up.
Got it out. Probably could've skipped all the disassembly now that I know how the harness disconnects. Pops right off when you slide its clip off similar to like how the injector harness works on the n55 dme.Yeap... It's another one of those positions where you get uncomfortable but there is only one way to get at it.