To reset the AdBlue level indicator after filling, use Guided Fault Finding Function/Component selection to perform the SCR system functions test plan, available under Drivetrain > 01 - CKRA - Engine -J623 > 01-systems capable of self-diagnosis > 01 - Diesel-direct fuel inj. and glow plug system EDC 17 > 01 - Engine electronics functions.
When the warning light first comes on you’ll have plenty of time to refill – so don’t panic. Just make sure you don’t put off topping up. How to reset the AdBlue warning light . There’s no manual way of resetting your AdBlue warning light – the only thing you can do is top up.