Technical Start stop warning ⚠️ and check Ad Blue System warning on dash along with orange engine warning light staying on.

[Adyjay]

Hi all,
Recently picked up this 21 plate Fiorino 1.3 diesel van private sale. Everything seemed fine when buying it. Done a road test. No warning issues. Drove it home that evening of purchasing it. All fine. Its only been driving a few times until 2 days ago the start/stop warning and Check Ad Blue System warning message came up on the dash. Also the orange/ yellow engine warning light staying on. I topped up Ad blue just in case it was low. Still fault showing. I've run a scan and its picked up 3 hard faults with the Ad Blue system (see pic).
Just before I send it to a garage I wanted to put out a message to see if anyone else has had this issue in anyway.
I'm thinking as there is an issue with the Ad blue system the stop/start automatically switches itself off and therefore will not work.

Any help would be very appreciated.

Thanks
Ady

 

[JAMLAX]

Hi there - I'm not a mechanic so I'm hesitatant that I might be contributing ignorance. That said, after hundreds of thousands of diesel Fiat Doblo miles and diesel Peugeot Partner miles, back in my taxi driving days, I remember an instance where the engine warning light in tandem with another warning light came on (can't remember the name of it) but in the case of the diesel Peugeot the only way to permanently clear the irritating warning lights was to re-install an actual Peugeot brand of glow plugs instead of the cheaper (but perfectly adequate) non-Peugeot glow plugs. I'm wondering if some non-Fiat sensor associated with the Ad-Blu system has been replaced at some stage and contributing to the irritant warning lights. Just a speculative thought!

I could also mention a slightly different situation that happened with my 1.6 diesel Fiat Doblo when I couldn' figure out why it wouldn't start and it turned out not the battery, not to be the alternator, not to be the starter motor, but it was discovered eventually by the mechanic that it was a corroded earth cable strap (connected to the starter motor - or close to the starter motor from memory). So I may be going off at a tangent to your present problem but this past experience has made me aware of a 'bad earthing' situation that can interfere with warning lights on the dashboard.

 

[Adyjay]

Hi there - I'm not a mechanic so I'm hesitatant that I might be contributing ignorance. That said, after hundreds of thousands of diesel Fiat Doblo miles and diesel Peugeot Partner miles, back in my taxi driving days, I remember an instance where the engine warning light in tandem with another warning light came on (can't remember the name of it) but in the case of the diesel Peugeot the only way to permanently clear the irritating warning lights was to re-install an actual Peugeot brand of glow plugs instead of the cheaper (but perfectly adequate) non-Peugeot glow plugs. I'm wondering if some non-Fiat sensor associated with the Ad-Blu system has been replaced at some stage and contributing to the irritant warning lights. Just a speculative thought!

I could also mention a slightly different situation that happened with my 1.6 diesel Fiat Doblo when I couldn' figure out why it wouldn't start and it turned out not the battery, not to be the alternator, not to be the starter motor, but it was discovered eventually by the mechanic that it was a corroded earth cable strap (connected to the starter motor - or close to the starter motor from memory). So I may be going off at a tangent to your present problem but this past experience has made me aware of a 'bad earthing' situation that can interfere with warning lights on the dashboard.

Thanks for the info. I'll look into these points