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 an expensive trip to the dealer for programming – 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:

  • BMW 1 Series (E81/E82/E87/E88) 2006-2013, all variants
  • BMW 3 Series (E90/E91/E92/E93) 2007-2014, all variants
  • BMW Z4 (E89) 2009-2011, all variants


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*


Price and further info: Click here for full pricing and product info.


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.

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Comments on "BMW E90/E92 Electric Power Steering Rack Motor malfunction"
Andre says: 12/7/2019 11:56:10 PM
Do you guys ship to Australia? I have 320D showing EPS fault (code A54B).
ECU Admin says: 15/7/2019 10:07:44 AM
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: 9/7/2019 8:27:32 PM
will this fit a non electric power steering e90 328xi 2008?
ECU Admin says: 10/7/2019 9:00:44 AM
Hi Kenny, unfortunately this will not fit a non electric power steering E90.
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