BMW E90/E92 Electric Power Steering Rack Motor malfunction

E90 E92 power steering fault


This BMW 3 Series, 1 Series and Z4 electric power steering rack motor is a very common fault for the 2006 – 2016 build range.

Complete and sudden loss of power assisted steering, caused by failure of this unit, will cause the steering to become incredibly heavy at low speeds making manoeuvrability very difficult especially when trying to park.

A clear sign that the steering rack motor has failed is a lack of communication to diagnostic equipment. This fundamental failure can often lead to long diagnosis and labour times due to the nature of this inherent common failure with the BMW E90 and E92 steering rack.

Most BMW main agents will seek to resolve this common problem by replacing the entire steering rack, which can prove to be very slow and needlessly expensive due to the cost of the new steering rack, labour costs involved with removing, re-fitting and programming.  A new unit will come with a very short (1 year) warranty and will suffer from the common issues as the root cause has not yet been revised at the factory, meaning that it will likely fail at some point further down the line.

Thankfully there is a more cost effective and reliable solution, we are now able to fully rebuild your own steering motor with an unlimited mileage lifetime warranty, this is a fully re-engineered solution with all common failing components upgraded to higher rated than standard versions. All programming is retained during the rebuild, so no need for coding – simply refit and away you go.



Removal instructions:



For this BMW E90 and E92 steering rack we only require the electric power steering motor from the full rack which cuts down on cost straight away - do not send in the entire rack. Our rebuild option re-engineers the main manufacturing defects, meaning that the chance of further problems arising would be slim to none, but should any issues occur our lifetime warranty will ensure swift resolution of any problems. However, our work defect rate is lower than 0.6% on all of our rebuilds, so you can be assured of our very high standard of work.

e90 e90 power steering removal

Common Failure symptoms:

  • Intermittent to complete loss of assisted steering
  • Power steering warning light
  • No communications to the power steering servomotor module


Common fault codes:

  • A54B - Message (Electrical Power Steering, 0x1FB) Faulty


Affected Vehicles:


Common failing part numbers:

  • 679294201RA / 7806974229 / 75360000802
  • 678874202RA / 7806079282 / 7806177216 / 7802277243
  • 0273010100 / 7806079335 / 7806177297
  • 0273010072 / 7802277232
  • A07342116 / 7802277625 


Test and rebuild:

During our stringent testing procedure, we use our purpose built, state of the art Hardware In-the-Loop test rig. This allows us to run the power steering rack motor as though it was on the vehicle, simulating all driving conditions, and identify all faults within the unit. Using only the very highest quality components our technicians will rebuild the power steering motor and module and then extensively re-test to ensure that no faults remain. Constant in-house development means that all of our testing procedures are as extensive and encompassing as possible.



Our rebuild service will retain all coding information of the electronic power steering motor, meaning that no programming will be required upon re-fitting.



Our strict quality control: encompassing testing, components and workmanship will ensure only the highest level of work is carried out to meet our lifetime warranty standards. Due to our extremely high standards we work very closely with dealerships and specialists, offering a better solution to replacement.



Lifetime unlimited mileage*


How do I get my unit rebuilt?

Pay for the rebuild here: Get yours rebuilt

Print the payment/booking confirmation email.

Package the power steering motor and combined module inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box).

Send us your package by tracked courier (the shipping instructions are on the confirmation email).

Once received we will test, rebuild and return your power steering motor with an unlimited mileage lifetime warranty. (if your unit turns out not to be faulty then we will refund your payment less a small testing fee and return shipping)


What if I don’t want to pay up front?

This is not a problem, if you prefer this option then follow the following steps:

Fill in and submit this test form.

Print the booking confirmation email.

Package the power steering motor inside a sturdy box with plenty of packaging materiel (make sure you include your confirmation email in the box).

Send us your package by tracked courier (the shipping instructions are on the confirmation email).

Once received, we will test your power steering motor and module and call you to advise on the outcome of testing, if your electronic power steering motor is faulty and you choose to go ahead with the rebuild then we will take payment over the phone using a debit/credit card.

We will then rebuild your power steering motor and return it to you with an unlimited mileage warranty.

If you require further information regarding this electronic power steering servomotor and module then please contact us.

BMW Products/Services










Alpina B3













Comments on "BMW E90/E92 Electric Power Steering Rack Motor malfunction"
Vidar says: 16/06/2022 00:19:15
I have intermittent loss of power steering with steering assistance fault/failure message in idrive. In addition to error code A54B, D516 and D507 is also stored in the memory. Is it most likely to be the motor or could it be something else?
ECU Admin says: 16/06/2022 09:29:57
Hi, this would suggest a faulty EPS unit/motor
Rennick Abreu says: 08/11/2021 14:45:26
am living in Goa India would I be able to send my steering module . do you have any facility in india to repair the same
ECU Admin says: 09/11/2021 09:26:21
Hi, you are welcome to send your unit to us. To begin just complete our Test Form
mag wheels christchurch says: 01/10/2020 12:45:25
I am so happy I found your blog and I absolutely love your information about BMW e9092 electric power steering rack motor! I liked and it is wonderful to know about so many things that are useful for all of us! Thanks a lot for this amazing blog!!
luthiel louinord says: 16/08/2020 00:38:54
i have a electric power steering problem with my bmw year 328i i like to rebuild it or to buy used one.
ECU Admin says: 02/09/2020 12:09:39
Hi Luthiel, for prices and shipping information please see the following link:
Gregor T says: 04/07/2021 16:55:09
Hey my power Steering does work sometimes The code is D516 is this also a problem with the motor?
ECU Admin says: 05/07/2021 10:01:12
Hi Gregor, that is often caused by internal failure of the power steering module, but can be repaired for.
Christos says: 14/04/2020 00:20:33
Hi there, I have the same problem on my BMW 320 D E90 with a yellow indication on the dash making the steering very hard in slow speed. At first point I changed the battery but nothing changed. Then I took the car to a BMW garage where they did programming. The problem solved only for 1 month and now the problem appears again. Whats your opinion. How can I solve it once off? Thanks.
ECU Admin says: 14/04/2020 13:03:50
Hi Christos, you may have a faulty power steering motor depending on the fault codes being stored. For prices and shipping information please see the following page:
Diego Bortoli says: 11/04/2020 15:37:35
Hello. I have a bmw Z4 E89 2010 (Brazil) and i having this issue. The motor PN is 7806079440 and 0273010151. As i have an car repair shop, i opened the motor to check some problem like wather inside.. But found nothing. So, closed it all and the problem stay same. How much is the job ? Can you fix it? Can i drive without the motor normally?
ECU Admin says: 14/04/2020 12:46:18
Hi Diego, we can help with testing and rebuild of your BMW Z4 power steering unit, we would not recommend driving a vehicle with any originally fitted part removed, for prices and shipping information on your part number please see the following page:
Gregg says: 07/03/2020 12:17:35
Hello good morning my name is Gregg and Im having some problems with my EPS, i have a bmw 1 series and the steering wheel is very heavy to turn at low speed and while Im parking the car Ive scanned the car and Im getting a fault code A54B, would it be possible that my steering motors is faulty?
ECU Admin says: 10/03/2020 09:56:18
Hi Gregg, as you can see from the common fault information above, you seem to have a faulty power steering unit. To get started select your electric power steering unit from this list:
David Keefe says: 15/10/2019 12:02:13
Hi. Have loss of power steering on my BMW 325i se auto 2011 with a D516 Terminal 15 Status error message. Is this a suitable candidate for a new steering rack motor?
Albert Subekti says: 16/10/2019 17:11:37
I have similar error code problem. but just want to make sure that you are able to ship back to Indonesia. I am base in Jakarta, Indonesia. and I have BMW 390 manufacture 2011. this error code show intermittent.
ECU Admin says: 17/10/2019 09:37:39
Hi Albert, that will not be a problem we can ship all around the globe. For prices and shipping information just select your part number from the following list:
ECU Admin says: 16/10/2019 10:03:49
Hi David, from the information you have provided it does appear that your power steering unit will need rebuilding. Click the following link to get started:
Sebastiano says: 09/10/2019 06:27:27
I have a obd error 63f8 in the display the led Yellow for stering
ECU Admin says: 09/10/2019 14:15:33
Hi Sebastiano, your fault code 63F8 suggests that the software-end stops have not been taught, we would recommend re-trying this via diagnostic tools. If the EPS does not save this information or your EPS loses communications you may have a faulty power steering unit, we can help with this. For prices and shipping information please see the following link:
Adam says: 05/09/2019 20:50:22
Cc-Id 73 intermittent failing of power steering. Restart the engine umpteen times it will function then others just no power steering for the whole journey. Have you got instructions to to remove the parts needed?
ECU Admin says: 06/09/2019 09:26:21
Hi Adam, we can certainly have a look at that for you. For removal instructions please watch the video above and for pricing information please see the following link:
Andre says: 12/07/2019 23:56:10
Do you guys ship to Australia? I have 320D showing EPS fault (code A54B).
ECU Admin says: 15/07/2019 10:07:44
Hi Andre, the fault code you have is an indication that your steering motor is faulty. We do ship to Australia, however you would need to arrange for your unit to be shipped to us initially for the rebuild and we would organize the return shipping. You can see full price and shipping information on this page:
kenny says: 09/07/2019 20:27:32
will this fit a non electric power steering e90 328xi 2008?
ECU Admin says: 10/07/2019 09:00:44
Hi Kenny, unfortunately this will not fit a non electric power steering E90.
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