RHD power steering motor to left hand drive LHD?

[z4e852003fi]

Coding Right hand drive RHD power steering motor to left hand drive LHD, has anyone succeeded?

 

[bigwinn]

No

It’s not possible

 

[enuff_zed]

Coding Right hand drive RHD power steering motor to left hand drive LHD, has anyone succeeded?

If you search the forum I'm pretty sure there was someone who tried coding. It didn't work. The motor turns the opposite way.
Somewhere in that thread they detailed how they swapped two wires over to reverse the direction.
Pretty sure that's all it needed.

 

[enuff_zed]

In here I think:

C

Thread 'Electronic Power Steering is violent and erratic after motor replacment'

Mar 24, 2024

[https://www.youtube.com/watch?v=ZpBhmJ1ESNM]
*UPDATE: added Youtube video.
So... my 2003 BMW Z4 had the Electronic Power Steering Module intermittently failing, especially on hot days. Lots of digging on forums indicated that the EPS motor/module is the likely culprit. Codes:
EPS MODULE FAULTS:
- 6128: Vehicle Speed (173,736km)
- 611D: Power Supply (172,320km)
- 610e: Temperature EPS (186,760km)
- 6124: Power reduction due to overtemp (186,760km)

Well, I bought a replacement EPS motor/module, pulled the steering column, removed and replaced the EPS motor/module, and reinstalled the...

• CarnieZ4
• Replies: 40
• Forum: E85 - E86 Problems

 

[enuff_zed]

Oh, and welcome to the Forum.
Once you get the steering sorted, take a few minutes to introduce yourself, with a photo or two of your Zed.

 

[z4e852003fi]

No

It’s not possible

Thanks. But swapping those too wires seems to do it?

 

[z4e852003fi]

If you search the forum I'm pretty sure there was someone who tried coding. It didn't work. The motor turns the opposite way.
Somewhere in that thread they detailed how they swapped two wires over to reverse the direction.
Pretty sure that's all it needed.

Thanks. Swapping the wires seems to work and is safe?

 

[enuff_zed]

Thanks. Swapping the wires seems to work and is safe?

Apparently so? Not something I've had to do over here.

 

[RobbiZ4]

Somewhere in that thread they detailed how they swapped two wires over to reverse the direction.
Pretty sure that's all it needed.

Interestingly, if you remove the motors cover and are (mechanically) able to replace it in a 180 degree angle, it always turns the opposite way without cablework or coding.

 

[z4e852003fi]

Do you mean that the ecu would be below, not above the motor? Maybe there is enough space.

 

[enuff_zed]

Interestingly, if you remove the motors cover and are (mechanically) able to replace it in a 180 degree angle, it always turns the opposite way without cablework or coding.

That's interesting. I have a u/s motor here. I may go and have a look later................... when it's not like the surface of the sun in my garage!!!

 

[enuff_zed]

Do you mean that the ecu would be below, not above the motor? Maybe there is enough space.

I'm assuming @RobbiZ4 means the internal part of the motor rather than turning the whole thing over, as the motor would still revolve the same way whatever the orientation of the assembly?

 

[RobbiZ4]

The intended turning direction of an e-motor is depending on the magnetic polarisation in the cover.

I've stumbled several times over hydraulic pumps of the hardtop convertibles which got disassembled and faulty reassembled by it's owner with the result, that the complete hydraulic system worked inverse. The source of this very unlogic behaviour was a wrongly mounted cover.

 

[enuff_zed]

The intended turning direction of an e-motor is depending on the magnetic polarisation in the cover.

I've stumbled several times over hydraulic pumps of the hardtop convertibles which got disassembled and faulty reassembled by it's owner with the result, that the complete hydraulic system worked inverse. The source of this very unlogisch behaves was a wrongly mounted cover.

Yup. I see now. So remove the spinning part and put it back in 180 degrees out.
Worth a play when I'm bored one day.

 

[z4e852003fi]

Steering works perfectly after yellow/white swap. Now the lights are dead, all the other stuff works ok. Any ideas? Fuses checked.