Battery

[Norrs2]

Folks

This morning i went to get something out of the RS and noticed that everything was a bit dull (dash/interior light). The Battery is flat. The Battery is only 18 months old (Bosch). i went on holiday a couple of months ago, and it was flat after 2 weeks. Ok, I thought, that's possible, charged it and away I went. This time, it has only been sitting since Friday. It should not be flat already.

Do I have a drain? Where do I start looking?

Thanks!

[rsmonkey918]

Morning Norrs, might be worth getting it checked- had a similar problem in the past and it was down to a faulty cell. Failing that possibly related to the alternator?? You probably need someone with a bit more tech knowledge......


Cheers
Steve

[mbelle]

Do you have Nav Plus+TV?

[Jarv]

Last time mine went flat, which was a few weeks back, the kids had left the small lights on in the back. Long shot, I know, but it was an easy fix.

[Norrs2]

Do you have Nav Plus+TV?

Yes i do! Related?

[Nige_RS4]

Last time mine went flat, which was a few weeks back, the kids had left the small lights on in the back. Long shot, I know, but it was an easy fix.

Happened a few times on my old S4 - the kids know better then to mess with the lights now!

[mbelle]

Do you have Nav Plus+TV?

Yes i do! Related?

Possibly - mine has gone flat on one occasion as well.

When you switch of the engine and remove the key from the ignition, your Nav unit turns itself off after ~2-3secs (mine can be heard as a slight deep clunk from the N/S rear boot area, obvisouly, as it is located there).

On this one occasion, I pulled up in my drive and continued watching TV for ~1min, then removed the key from the ignition i.e. the last function my unit was in was TV.
I don't recall hearing the unit switch itself off (although my display went out) - next morning, battery was flat.

Now, I never leave it on TV when removing the key from the ignition, and always listen to ensure the unit switches itself off...

[Virdee Autos]

Best to get your battery and alternator checked, and then if all is good, you need to check the battery drainage ideally with a tong tester on the battery, and pull out each fuse individually, and see if the value drops. If it does, then check what that fuse is for.

Thats a starting point!

[rickoshea]

My last Bosch battery ( fitted to a ' seasonal ' Ford ) lasted 12 years

[PaulR]

It must be a 23rd September feature; mine was flat yesterday too! And as it's less than 2 years with old "no previous" I was surprised. Car had only stood 2 days since it had a fairly decent outing. As far as I can see nothing left on and no TV, though it does have Nav+, but will see if it repeats now it's been charged and investigate from there.

...PaulR.

[Norrs2]

It must be a 23rd September feature; mine was flat yesterday too!
...PaulR.

Thanks for the responses guys. Thanks Virdee, I'll get it checked out.

I'll report back any findings.