Child Lock Fault

[L-D]

Hello

I wonder if anyone can advise. We have had the car for 10 months, A3 sportback and when we start the engine it says child lock fault contact workshop.  We have done but they can't see us for weeks and want £170 just to look at it and then said we may need to pay for parts.

We have extended warranty so I was hoping this covered it. 

The strange thing is all doors and child locks work fine and if I push the child lock buttons BEFORE I start the engine no fault appears. If I don't push the button then it comes back. It's very odd.

Any ideas what could he going wrong and could this be a local garage fix without the 170 quid plus whatever parts they decide we need? 

Thanks in advance.

[Magnet]

Welcome Leah,

Audi extended warranty?

If so, I believe parts should be covered, but diagnostics will be charged for. 

Taking it to a local garage to save some of the £170? Could lose claim to your warranty, and how much are you going to end up saving anyway. 
Kind regards,

Gareth.