z4 e89 errors

[Stormenson]

any idea what might be the cause of this error triggers simultaneously?
is there any module that control all this stuff together that might be defective?
can it be a battery problem?

the errors come and go from start to start

 

[Ole gits rule]

No expert but how old is the battery, would be the first place to start and probably the cheapest

 

[flybobbie]

I was always getting Bosch dsc errors on the obd reader and recently ebrake voltage error.
Just replaced the battery, i need to go back and cancel these errors to see if battery has cured those problems.
I replaced with a Varta battery, about £130 ebay.
I registered with my obd reader.
Gives option for agm or std battery.
It asked for some numbers off battery, which i couldn't find, but looks like even BMW on the first battery didn't bother.
My old battery was Halfords Yuasa, with a 4 year guarantee, so one assumes these batteries good for 5 years. Mine was 6 years old.

 

[B21]

Almost all those errors involve the DSC unit…

As others suggested status of the battery would be a good first move.

FWIW if there are no other errors showing on the code reader I thinks it more than a battery issue..but..try with a fully charged battery..

 

[Stormenson]

thanks for the answers , thats the battery info i can provide

 

[javis20]

Could be a poor electrical connection at the ABS pump connector. Try reseating it. Remove the plug and then put it back on. It's a simple first step.

 

[B21]

Could be a poor electrical connection at the ABS pump connector. Try reseating it. Remove the plug and then put it back on. It's a simple first step.

IMHO good first step…FWIW battery looks pretty healthy if the diagnostics are to be believed..

 

[PFZ4E89]

Hello
I had very similar symptoms
The reason was that rodents bitten the wires (marten)