Hello everyone,

Wondering if anyone can help me.

A few weeks ago my EPC light came on and immediately went into limp mode and started jumping when driving at 5mph. After a few hours I came back to the car and it was fine so I drove it to my storage unit. I came back the next day and when starting it the EPC light and EML light were illuminated and the idle was quite rough.

I came back to it about a week ago and all the doors were locked, the key isn't unlocking it and the barrel of the central locking isn't even turning. The ignition seemed to be on aswell. I'm really at a loss of what to do. We had some hard rain that week the vehicle was unable to be opened so im hoping water hasn't gotten into the BCM but I'm not sure.

Audi S5 V8 4.2 2008

Any help would be great, thank you all.

Kian

A dying battery can cause all those symptoms so the first thing to do is get tested professionally, not a multimeter voltage reading. If a new battery is needed get it coded to the car.

Only after proving the power supply is sound is it worth investigating any remaining symptoms.

31 minutes ago, cliffcoggin said:

A dying battery can cause all those symptoms so the first thing to do is get tested professionally, not a multimeter voltage reading. If a new battery is needed get it coded to the car.

Only after proving the power supply is sound is it worth investigating any remaining symptoms.

Hi mate, a new battery was installed by a garage 2 weeks before the issues started as a resistor for the heating was draining the battery.

1 hour ago, Kian said:

Hi mate, a new battery was installed by a garage 2 weeks before the issues started as a resistor for the heating was draining the battery.

And was it coded to the car?

Any update for us Kian?

I know you have seen the above two questions Kian, so I can only assume you are unwilling to help other members of the forum by replying. One warning coming up.