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Steering ECU

2003 - 2009, roadster, coupe, facelift
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s10blades
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Steering ECU

Post by s10blades » Wed Mar 06, 2024 6:08 pm

Hi All
Has anyone had the electronic steering ECU repair done?
Can you recommend anyone that does it
Had the dreaded yellow light and no power steering this morning whilst out , managed a reset and got home ok but am I right in thinking the ECU is on its last legs ?
Any advice welcomed
Thanks
E85 2.5 Z4 Merlot
320d Touring M Sport X-Drive Black Sapphire
E36 1.9 Z3 Montreal Blue (deceased)
320d Touring Black Sapphire (deceased)
X1 2.0d X-Drive Grey ( written off by a taxi)

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enuff_zed
Lifer
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Location: Attleborough, Norfolk

Steering ECU

Post by enuff_zed » Wed Mar 06, 2024 6:22 pm

s10blades wrote: Wed Mar 06, 2024 6:08 pm Hi All
Has anyone had the electronic steering ECU repair done?
Can you recommend anyone that does it
Had the dreaded yellow light and no power steering this morning whilst out , managed a reset and got home ok but am I right in thinking the ECU is on its last legs ?
Any advice welcomed
Thanks
Easy-peasy. Whip the motor off and send it to ECUTesting. Comes back fixed with a lifetime warranty.
Buy the service through their eBay site as for some reason it is cheaper. £295 all in.
I am assuming you will be removing and refitting it yourself?

https://www.ebay.co.uk/itm/401352168863
HQ of 'Norfolk Zed Rescue'.
Always happy to help if I can.

If the forum helped you, why not help the forum back. Thats the Z4 way! :thumbsup:
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Joez4
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Location: West Midlands

Steering ECU

Post by Joez4 » Wed Mar 06, 2024 6:29 pm

Hi, when this happened to me restarting the car fixed it for the first two times then it became permanent after that.

If you have access to ista on a laptop then when the light is on and you scan the car for codes and the eps module is displayed as red ie it can't even communicate with it then this is a clear indication the module needs repairing. Other code readers should be able to read all the cars modules to but I don't know which ones, if it does read the module you should have codes stored.

Ecu testing is the only place that I know of and that's where I sent mine, turn around is very quick and supposedly they fix the issue permanently and offer life time guarantee, only difficulty is getting the motor out of the car this requires removing the seat and a few covers to get access to it, some even remove the steering wheel I found I could do it without doing this.

Here's a link to the thread I made when it happened to my car, hope this helps

viewtopic.php?t=142042
04 2.2i Sapphire Black Roadster

s10blades
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Posts: 142
Joined: Wed Mar 02, 2022 6:40 pm

Steering ECU

Post by s10blades » Wed Mar 06, 2024 8:00 pm

Thanks all for the info, it’s much appreciated
Light came back on just driving it into my garage
☹️ and it’s not drivable, will try the code reader first

A job for a dry weekend I think
E85 2.5 Z4 Merlot
320d Touring M Sport X-Drive Black Sapphire
E36 1.9 Z3 Montreal Blue (deceased)
320d Touring Black Sapphire (deceased)
X1 2.0d X-Drive Grey ( written off by a taxi)

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enuff_zed
Lifer
Lifer
Posts: 14809
Joined: Wed Oct 26, 2016 11:05 am
Location: Attleborough, Norfolk

Steering ECU

Post by enuff_zed » Wed Mar 06, 2024 8:13 pm

s10blades wrote: Wed Mar 06, 2024 8:00 pm Thanks all for the info, it’s much appreciated
Light came back on just driving it into my garage
☹️ and it’s not drivable, will try the code reader first

A job for a dry weekend I think
Code reader will say it cannot see the ecu. In addition the sport button won’t work. Give yourself a couple of hours to get the motor out.
PM me and I’ll give you my mobile number to talk you through it. But not 14/3 to 25/3 as I’ll be in by Egypt,
HQ of 'Norfolk Zed Rescue'.
Always happy to help if I can.

If the forum helped you, why not help the forum back. Thats the Z4 way! :thumbsup:
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