Thanks Tomko for sharing the MB hose with kruse adapter idea. Unfortunately we Canadians are getting hosed as MB wants $28 for the hose and MB no longer sells the DEF 10 liter with the required thread size to accept the hose. For me I bought the 1.9 liter DEF with the kruse end and converted it into a funnel.Diesel Brethren:
DEF is a part of our modern day diesel life. However refilling our trunk-mounted tank is somewhat awkward. When spilled, DEF dries to a nasty white crystalline compound. Get it on your hands or paint and you'll be sorry that you did.
So here is the Tomko Method on how to do it best...
Go to your friendly neighbourhood Mercedes-Benz parts counter or online seller and request the following part.
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It is called a filling hose, p/n 00 583 22 04, and I bought mine for $13.
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This hose is equipped with a one way Kruse valve and connector. It attaches directly to the DEF spout beneath the carpet in our trunks. The other end of the hose connects to a 10 Litre Mercedes-Benz DEF container. I bought mine for $8, p/n 004 989 04 20 12.
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Once attached this allows for a spill-proof transfer of fresh DEF into the car's DEF tank. It is fast, easy and above all clean. My car hit 7,300 miles today and I used this method to refill its DEF. It took nine litres.
This same filling hose can be attached to another source of DEF provided its cap has the same dimensions. For reference here's a close up of the M-B cap.
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Unfortunately it did not attach to the AC Delco DEF bottle I got from my dealer. But I simply refilled the M-B container with fresh supply from the AC Delco bottle and then hooked it back up to my Cruze.
I did this today, outside at a service station, at ten degrees below freezing. In spite of the conditions, and this being my first time, I only had two small drops of DEF to clean up.
This is the Tomko Method.
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