Q5 Warning Lights

[PeteB62]

Not sure if I have a real problem or not?

Started car on very cold and frozen morning and a number of lights just came on with various text warnings, yellow ABS light, yellow car stability system and yellow parking break with a line through it. From handbook says just take it to nearest dealer, but so far when driving have not seen any problems, parking break works fine. Others are less obvious unless driving in conditions which may cause effect.

Is it possible to clear the warning lights with an OBD reader and see if they come back again or not, before taking it to the garage?
If so where is OBD socket located?

[LOTUS110]

What condition is your battery in?
If its fairly old it could be the cold affecting the voltage which would bring up various warning lights.

[shtu]

LOTUS110 said:

battery

My first thought.

[PeteB62]

Thanks chaps that's a good shout, I'll try it on the battery conditioner and look into getting it replaced. Not been using it much with the ongoing lock down situation so seems logical.

[PeteB62]

Still the same situation after 24 hours on charge, so looks like it will need to be a trip to the garage in the new year. One other strange thing I forgot to mention was that when switching the ignition off it no longer seems to be instantaneous, more like 3 seconds!!!...

[annodomini2]

Could have a ECU not shutting down correctly, it will drain the battery.

These have battery management, the warning lights will be because some of the ECUs will have been fully turned off to preserve the battery.