Audi A3 1.6tdi convertible 2009

[Wendy21]

Any ideas, so far battery has been suggested just wondering if any one has any other thoughts 

[Magnet]

Hello Wendy,

Whoever suggested ‘battery’ ( who was it?) has come up with a good call. 
One of the first systems to shut down as the battery’s efficiency declines, is the stop/start function - good news to me, since this is one of the most engineeringly averse systems to be designed! 
Take the car on a 20 mile run to ensure it has a reasonable amount of charge, and drive it along to one of Halford’s stores, and ask them to check the battery’s efficiency for you -and the alternator while you are there. 
If it tests as substandard, then please come back to us before agreeing to buy a battery from them.

Kind regards,

Gareth. 
p.s. what is your average journey - distance and frequency wise? 

[Wendy21]

My computer to work is about 10 miles each way, however I have just come back from a weekend away where I drove approx 400 miles,however journey home was in heavy rain and congestion with heating and lights on as well.

[Magnet]

Thanks Wendy,

Commute should be adequate to maintain the battery. Cheap option first - as said, get the battery efficiency checked. 

[Steve Q]

2 hours ago, Magnet said:

Thanks Wendy,

Commute should be adequate to maintain the battery. Cheap option first - as said, get the battery efficiency checked. 

Battery suggestion was me 😉 you've taught me well Gareth🙂

[Magnet]

Thanks for clarifying Steve, I thought I’d seen reference to this (duplicated?) thread before. 
Bless you if you are learning from me! The pupil will only be as good as the tutor - so that’s not saying much! 
Take care, and good luck to Wendy with her battery check. 
Kind regards,

Gareth.