This electric power steering column is a very common failure for the BMW Z4 built between 2003 and 2009. When the steering column motor fails then the steering will become very heavy and the power steering light will illuminate on the instrument cluster. If you attempt to diagnose the steering fault then you will find that when you attempt to read fault codes or live data from the steering column, it will not communicate at all with the power steering system. If you have these symptoms then there is a very good chance that you have the very common fault with your electric power steering column.
• Complete power assisted steering failure.
• Power steering light on.
• Unable to communicate with the power steering system during diagnostic checks.
• BMW Z4 (E85/E86) 2003 – 2009, all variants.
Common failing part numbers:
• 974 134
We fully test all electric power steering columns under accurate driving conditions both before and after rebuilding your steering column on our purpose built HIL (Hardware In-the-Loop) test rig. This HIL rig is designed to fully simulate all vehicle signals and uses genuine force and load conditions to ensure your unit is functioning fully and as originally intended following the rebuild.
We rebuild these Z4 electric power steering columns for manufacturers, main dealers and BMW specialists all over the globe, so you can be assured of our extensive experience and quality of our work.
No need for any additional programming or coding once you receive your rebuild steering unit back, just bolt on, plug in and away you go.
This steering rebuild comes with an unlimited mileage lifetime warranty*.
Price and product information: BMW Z4 Electric Power Steering Motor
How does this service work?
What if I don’t want to pay up front?
This is not a problem, if you prefer not to pay until we have tested your unit then follow these steps:
If you require further information regarding this ECU then please contact us.