[Daniel Nastase]

Hello to all members! I also have a rather strange and annoying problem with an Audi A3 2010 1.6 tdi cayc.
For example, if I drive for a longer time, say around an hour, and I arrive at my destination and when I slow down close to the stop, the engine stops. When I want to restart, the starter does not spin anymore. It just engages the bendix and the current jumps, as an example you say that there would be no current in the battery. if I leave it for around 30 minutes, it starts normally. and as a problem, if I leave it in the sun for a long time, around 40 minutes, 1 hour, when I turn on the ignition, the clocks do not turn on, the starter does not engage at all. current only reaches the radio and the climate panel, otherwise nothing reaches the clocks. any idea would be well received or if anyone has experienced something like this before. I replaced a new starter. bcm replaced. Checked wire supplies. I don't succeed and give up. P/S The car has start/stop

[Jacce75]

I would test with a new battery.

[pupu144]

Have you thoroughly checked negative wires under the hood for continuity and possible corrosion at contact point?
Measure resistance between battery negative pole and engine and/or starter motor.

Check with a different battery, as suggested.
Also check if car starts with battery booster when it does not want to start on it's own.

Have you scanned ECUs with ODIS / VCDS - are there any DTCs?

[Daniel Nastase]

I also tried with a new battery. I tried with other ground wires from the negative terminal of the battery to the bodies and including the engine. if you leave me a phone number, I'll send you a video of how the car works

[pupu144]

Upload it to cloud storage..
Sharing phone numbers on forums is asking for troubles..!