Q5 50 TFSIe intelligent mode not working

[AndyRN]

Hi. I’m new to the forum and wondered if anybody has had the same issue. It’s a 23 build year and recently, when in intelligent mode, the car doesn’t shut off the petrol engine, which is resulting in sub 20mpg. It’s intermittent but for sure, it’s definitely not right. It’s booked in with Audi in a few days. Any advice would be appreciated. Thanks. 

[Steve Q]

I'd recommend a diagnostic check to see if any fault codes flag up. As this is under Audi warranty I'd get it booked in asap. 

[AndyRN]

Thanks, Steve, 

I’m hopeful that they do find a fault when they plug it in, as there are no fault  messages in the MMI, which I find strange. I’ll update post following Monday’s visit to Audi. 

[MiguelP]

Hi

Same problem. 

Any update about the solution?

Thanks

[Magnet]

Welcome Antonio,

Regrettably Andrew never did return to let the forum know how the issue was resolved. Let’s hope he does now, but if not, you could send him a PM and hope for a response.

Regards,

Gareth. 

[MiguelP]

23 minutes ago, Magnet said:

Welcome Antonio,

Regrettably Andrew never did return to let the forum know how the issue was resolved. Let’s hope he does now, but if not, you could send him a PM and hope for a response.

Regards,

Gareth. 

Thank you very much for your reply.

Audi dealership is trying to solve this problem since october 2023. After the diagnosis they find error P044100 - EVAP emission incorrect. The solution was to change N80 valve, but the problem came back!  Every 2000km, more or less, the problem returns and i have to stop  the car, shut off engine and restart the car so that the system works normally again. I went back to the workshop more than 10 times and they changed practically everything in the EVAP system, but without success. Next appointment at the dealership will be on the 11th. I'm curious about what they'll replace this time...

Edited June 1 by MiguelP

[Magnet]

Many thanks Antonio,

If we haven’t received a response from Andrew by the end of tomorrow, I’ll send him a PM for you, and hopefully post a response.

Regards,

Gareth. 

[MiguelP]

Thank you very much.

[AndyRN]

Hi all. Really sorry I forgot to post. This is how it went with Audi, Oldham. 
The technician told me that the diagnostic found no faults and that the issue was that I had deselected intelligent coasting in the MMI. He told me that he activated it again, drove up and down the motorway, and all is well. So…when I went to collect the car, and although I told him that the intelligent coasting mode had been switched off since new, he was adamant that this is what the issue was. 
Anyway, since being plugged in the diagnostic, and intelligent coasting off again, it’s back to normal !? 
I think a reset of the ‘brain’ of the car must have been done, but I wasn’t told that. 
in conclusion, when the electric charge is depleted, it shuts off the petrol engine into regen electric just as it should. The complete opposite to the issue I had, which was that the car never shut off the petrol engine, and instead decided to charge the battery, which resulted in sub 20 mpg for two weeks of driving. 
Again, sorry for this very late post and that I can’t be more helpful. 

Andrew