Hi ard - I got my bimmers from an importer. Both my BMW vehicles were inported from the US so this means I do not enjoy any warranties from local dealers here. The US versions of BMWs are better than the local versions because they come in with all options. The local ones are overpriced and come with almost bare options. Unfortunately, in this particular case, there are no locally released BMW's that use DEFs therefore they cannot service and address this particular issue (Philippine emission regulation is almost non existent - no regulations on Diesel soots unlike the US). I had to ship DEF bottles from the US that took months to arrive because they were shipped by sea. Hence, I'm left with DIYs for this. Trying to search on the web how to take down the tank and sensors before I order from Pelican :-) I hope this paints a clearer picture on why I choose to refer to the threads and not go to the dealers. But thanks for the concern there!