LukasBergRider
Seat Arona AdBlue Tank Issue
Summary of the thread
A 2020 Seat Arona with a diesel engine displayed an AdBlue tank empty error, preventing the car from starting. The suspected cause was a defective AdBlue output from the tank to the dosing unit. A similar issue was confirmed by another owner, suggesting a professional check to prevent further complications. The problem was resolved with a repair costing approximately 250€.
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4 comment(s)
LukasBergRider (community.author)
Fuel efficiency hasn't noticeably changed, but the dashboard alert is definitely annoying. Was it definitely the AdBlue tank output in your case too?
liamweiss7
Yep, the garage confirmed it was the AdBlue tank output. Think of it like a clogged artery in a human, preventing the fluid from reaching the SCR catalyst! I'd get it checked professionally; a faulty injection system can cause bigger issues down the line.
LukasBergRider (community.author)
Thanks for confirming. Took it to the workshop. Turns out the AdBlue output from the tank to the dosing unit was indeed defective. 250€ later and it's all sorted.
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SEAT
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ARONA
liamweiss7
Oh no, that sounds familiar! I had a similar problem with my Arona. DEF fluid light came on, and then it just wouldn't start. Is your fuel efficiency also suffering? It felt like the injection system was all messed up. The dashboard alert was driving me crazy!