8L S3 BAM Brake warning, ESP, ABS and Battery warning light after hard acceleration

[Mi7rennie]

Hi Folks,

I was driving into work this morning, just thinking to myself; "The S3 is going well, not been to the parts department for months" so I give it some right boot off the last roundabout before my work and the dash lights up like a christmas tree!

The flashing brake warning sign is on as is the ABS and ESP lights, the battery light came on initially and then went dim.

I just drove the last half mile to work gingerly and parked up, haven't had time to investigate it yet, but I wondered if anyone else has ever had a similar issue?

Any advise on fault finding or what it could be?

Mike

 

[<tuffty/>]

Check for fault codes in the first instance... if there are warning lights there will be fault codes logged...

<tuffty/>

 

[Mi7rennie]

Ok,

I'll get it on VagCOM tonight and see what comes up...

 

[Mi7rennie]

So, I managed to drive home last night after work, all the warning lights have gone out except the battery/battery light (the red one). I suspect a failed alternator.

The yellow battery light started flashing near the end of my ten mile drive with no lights, heater, radio.

I tested the battery voltage and it was 12V, when idling it was 12.6V; would a healthy alternator not usually be between 13 and 14V?

I've not had a chance to log the fault codes as the pc is on the blink too. should get logs on Friday hopefully.

 

[Mi7rennie]

alternator replaced today and that has fixed the issue.

 

[Vex182]

Think mine is 14.4 at the battery with my alternator. If yours was 12.x then it must have been just enough to charge the battery and nothing more.