The 4 lights of doom!

paddy wright

paddy wright

Elite
 south yorkshire
Site Supporter
So my Z was totally flat (no lights on dash when turning key flat!)after not being on charge while I was away. Jumped it and all was good- took it for a run to charge the battery and after 15 mins the dsc, handbrake, tpms and abs lights popped on (this was shortly after I’d popped the dsc on and had fun in a tight hairpin). So my question is do we think this is related to the low battery or something more sensor related? Thanks
IMG_8498.jpeg
 
Last edited:
I would change the battery anyway. Then try a reset of DSC. Then look at the censors if no joy. Did you get the codes?
 
Mine had a very discharged battery in 2021. It unlocked, lights came on the dash until I tried to start it then they went out.

Got it going with a jumper pack and sure enough I had 3 of those lights on that didn't go out.

Flat batteries on BMWs of this era seem to throw up all sorts of random warning lights. After I fitted a new battery it started but the alarm went off so I made a speedy exit to give the neighbours some peace. Thankfully the alarm stopped after a minute or so but the lights stayed on until I got to Ross at RBM who reset the steering angle sensor and the lights went out.

You're very unlikely to be able to recover a battery that flat so I'd fit a new one, read the fault codes and go from there.
 
I've had combinations of these lights on with power issues in both Z4's, make sure the battery can hold a charge (replace if not) and clear the codes would be my advice.

Also had it when the battery voltage was low enough after bump starting one of them one of the lights would come on at idle, but then go off with revs. Presumably because the alternator is pushing out more power when revving?
 
Mr Tidy said:
Mine had a very discharged battery in 2021. It unlocked, lights came on the dash until I tried to start it then they went out.

Got it going with a jumper pack and sure enough I had 3 of those lights on that didn't go out.

Flat batteries on BMWs of this era seem to throw up all sorts of random warning lights. After I fitted a new battery it started but the alarm went off so I made a speedy exit to give the neighbours some peace. Thankfully the alarm stopped after a minute or so but the lights stayed on until I got to Ross at RBM who reset the steering angle sensor and the lights went out.

You're very unlikely to be able to recover a battery that flat so I'd fit a new one, read the fault codes and go from there.
Click to expand...

I had / have these when my battery died on me, I'm getting a 5E30 code which I was told was the YAW sensor and the battery (which i've replaced both of these) yet I still see these 3 glowing lights. My C310+ doesn't clear the lights but i'm advised that the INPA / SITA might (which I don't have).

Edited this - I have replaced both the YAW sensor and the battery :(

Wondered if anyone had an suggestion on what to try next?
 
Last edited:
Once the source of that issue has been resolved, the lights go out. In my case anyway when I replaced the front left ABS sensor.
 
I have the battery on charge now. C310+ cleared the code (wheel angle sensor) and lights all gone. Hope the battery will take a charge once the trickle has it back up full.
 
So good news- battery holds a charge. Bad news the issue is the wheel speed sensor. Front right not registering any speed when tested.
 
If it is corroded I find the best way to get it moving and to prevent the Allen rounding out is get a set of monkey grips tight on it, once moving then use the Allen
 
bigwinn said:
If it is corroded I find the best way to get it moving and to prevent the Allen rounding out is get a set of monkey grips tight on it, once moving then use the Allen
Click to expand...
Thanks for the tip mate! Will try that as I imagine it will be well stuck in!
 
You must log in or register to reply here.
Back
Top Bottom