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Power steering light on dash

R

Russ59

Senior member
Mansfield Woodhouse
Last week my power steering light came on, so obviously no power steering, I turned engine off and back on again and the light went out👍 This has happened a couple of times but now the light doesn’t go out at all, so now I’m stuck. I’m not that technically minded to start stripping the steering column down, certain things yeah but not something this complex.
Is there a make do fix or is it going to cost me a lot of £££’s ??
Just when I was thinking of selling😩😩😩
 
same as, i think the car knows its being sold

ive had the codes read and it comes back as a open circuit on the instrument cluster module

which is strange, just trying to get to the bottom of it my self

if i clear the code and turn the car off (so car hasn't moved or steering touched) wait ten minutes and the light is back on and code is back.
 
My car did this last year and it turned out to be the ECU on the motor. I removed it and sent it away to ECU testing, they did there magic and once re fitted...my steering was back to normal :thumbsup:
 
https://z4-forum.com/forum/viewtopic.php?f=3&t=119340
I've had this issue for a while, hope you can maybe find some help in my EPS failure topic. ^
 
firebobby said:
My car did this last year and it turned out to be the ECU on the motor. I removed it and sent it away to ECU testing, they did there magic and once re fitted...my steering was back to normal :thumbsup:
Click to expand...

How much was the cost of repair??
 
Russ59 said:
firebobby said:
My car did this last year and it turned out to be the ECU on the motor. I removed it and sent it away to ECU testing, they did there magic and once re fitted...my steering was back to normal :thumbsup:
Click to expand...

How much was the cost of repair??
Click to expand...
I think it was around the £300 mark. I had no power steering and the sports button didn't work.
You can remove the motor without taking the column out, if it is the ECU ?
 
firebobby said:
Russ59 said:
firebobby said:
My car did this last year and it turned out to be the ECU on the motor. I removed it and sent it away to ECU testing, they did there magic and once re fitted...my steering was back to normal :thumbsup:
Click to expand...

How much was the cost of repair??
Click to expand...
I think it was around the £300 mark. I had no power steering and the sports button didn't work.
You can remove the motor without taking the column out, if it is the ECU ?
Click to expand...

My mechanic uses that company and they aren’t far away from us, he rang them when I dropped the car off to him this morning and they said what the problem was
But who knows now when it will get done after Boris’s speech tonight 😩😩😩
 
Russ59 said:
firebobby said:
Russ59 said:
How much was the cost of repair??
Click to expand...
I think it was around the £300 mark. I had no power steering and the sports button didn't work.
You can remove the motor without taking the column out, if it is the ECU ?
Click to expand...

My mechanic uses that company and they aren’t far away from us, he rang them when I dropped the car off to him this morning and they said what the problem was
But who knows now when it will get done after Boris’s speech tonight 😩😩😩
Click to expand...
Its a bit fiddly to get the motor out, but it will come out on its own. They had it back t me in less than a week, and you get life time guarantee on the repaired ECU.
 
Same thing happened to my '04. Also turned out to be the EPS ecu. I bought a used EPS from fleabay and fitted it. Difficult space to work in, but it can be done without removing the steering column. Also required reprogramming the newly fitted EPS with my car's VIN. Total cost to me was $77USD, but I did all of the work myself including the coding.
 
tomjones20194 said:
Same thing happened to my '04. Also turned out to be the EPS ecu. I bought a used EPS from fleabay and fitted it. Difficult space to work in, but it can be done without removing the steering column. Also required reprogramming the newly fitted EPS with my car's VIN. Total cost to me was $77USD, but I did all of the work myself including the coding.
Click to expand...

firebobby said:
Its a bit fiddly to get the motor out, but it will come out on its own. They had it back t me in less than a week, and you get life time guarantee on the repaired ECU.
Click to expand...
What are the symptoms when it's the ECU faulty? Does it make any sense if the power steering works only when the engine temp reaches ~90~ degree Celsius?
 
with mine, I was not able to communicate with the EPS module via INPA or any of the standard BMW tools when the error light in the dash game on. I got an IFC-0009 error or something like that, which mean the ecu is not responding. Also mine had intermittent error for a few days before the error light came on and stayed on.

If you can definitely correlate your unit’s intermittent behavior with temperature, then it’s possible that you have a bad connector or cable going to the Ecu. Temp could cause an intermittent open/closed circuit if there is a slight break in the wiring. There have been a couple of thread about this before.
 
Mine isn’t heat related, engine can be hot or cold and the light now stays on, it was intermittent to start with but then just stayed on.
 
Russ59 said:
Mine isn’t heat related, engine can be hot or cold and the light now stays on, it was intermittent to start with but then just stayed on.
Click to expand...

Try connecting to the EPS with INPA. If you get a communication error the EPS is bad.
 
tomjones20194 said:
Russ59 said:
Mine isn’t heat related, engine can be hot or cold and the light now stays on, it was intermittent to start with but then just stayed on.
Click to expand...

Try connecting to the EPS with INPA. If you get a communication error the EPS is bad.
Click to expand...

Mine is in the hands of the mechanic I use, I’m having it rebuilt at ECU testing.
 
Tamir said:
tomjones20194 said:
Same thing happened to my '04. Also turned out to be the EPS ecu. I bought a used EPS from fleabay and fitted it. Difficult space to work in, but it can be done without removing the steering column. Also required reprogramming the newly fitted EPS with my car's VIN. Total cost to me was $77USD, but I did all of the work myself including the coding.
Click to expand...

firebobby said:
Its a bit fiddly to get the motor out, but it will come out on its own. They had it back t me in less than a week, and you get life time guarantee on the repaired ECU.
Click to expand...
What are the symptoms when it's the ECU faulty? Does it make any sense if the power steering works only when the engine temp reaches ~90~ degree Celsius?
Click to expand...
Symptoms on mine were... no PS, the light on on the dash and no sports button.
 
firebobby said:
Russ59 said:
firebobby said:
My car did this last year and it turned out to be the ECU on the motor. I removed it and sent it away to ECU testing, they did there magic and once re fitted...my steering was back to normal :thumbsup:
Click to expand...

How much was the cost of repair??
Click to expand...
I think it was around the £300 mark. I had no power steering and the sports button didn't work.
You can remove the motor without taking the column out, if it is the ECU ?
Click to expand...


Not got my car back yet but had a call from my mechanic this morning saying ecu testing are rebuilding my unit and it’s costing me £550 including my mechanics labour all in.
Does it need programming to the car once fitted, if so is that a BMW job?
 
Russ59 said:
firebobby said:
Russ59 said:
How much was the cost of repair??
Click to expand...
I think it was around the £300 mark. I had no power steering and the sports button didn't work.
You can remove the motor without taking the column out, if it is the ECU ?
Click to expand...


Not got my car back yet but had a call from my mechanic this morning saying ecu testing are rebuilding my unit and it’s costing me £550 including my mechanics labour all in.
Does it need programming to the car once fitted, if so is that a BMW job?
Click to expand...
No programming required, just plug and play. :thumbsup:
£200ish for labour is pretty good too, I saved that and put up with the contortion tricks :wink:
 
Had a call from my mechanic today to say he had replaced my steering motor and guess what...NO CHANGE😩😩 so he’s had to take it off again and send it back to be checked over again. Ecu testing diagnosed the fault in the first place so I don’t know what the problem is😩😩
 
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