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z4 e89 errors

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Stormenson
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z4 e89 errors

Post by Stormenson » Sun Jun 19, 2022 3:46 am

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
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Ole gits rule
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z4 e89 errors

Post by Ole gits rule » Sun Jun 19, 2022 7:49 am

No expert but how old is the battery, would be the first place to start and probably the cheapest
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z4 e89 errors

Post by flybobbie » Sun Jun 19, 2022 7:59 am

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.

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B21
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z4 e89 errors

Post by B21 » Sun Jun 19, 2022 8:53 am

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..
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard..

Stormenson
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z4 e89 errors

Post by Stormenson » Sun Jun 19, 2022 11:30 am

thanks for the answers , thats the battery info i can provide
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javis20
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z4 e89 errors

Post by javis20 » Sun Jun 19, 2022 1:47 pm

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.

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z4 e89 errors

Post by B21 » Sun Jun 19, 2022 3:07 pm

javis20 wrote: Sun Jun 19, 2022 1:47 pm 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..
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard..

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z4 e89 errors

Post by PFZ4E89 » Tue Jun 21, 2022 6:02 pm

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

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