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  #1  
Old 12-04-2015, 07:00 PM
tsprinkle tsprinkle is offline
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Diesel Exhaust fluid tank capacity

I am going to do my service on my 2011 335d. Can someone tell me the capacity of the diesel exhaust fluid tank? Also, how much of the fluid I can expect to add at my oil change interval of 10000 miles. The fluid comes in 1/2 gallon containers. The dealer says they have a special machine to add the proper amount of fluid and it is included with my oil change at a total cost of about $350. I would like to do this myself and save the money.
Your thoughts an any information would be appreciated.
Thank you
Terry
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  #2  
Old 12-04-2015, 07:41 PM
FredoinSF FredoinSF is online now
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Auto parts stores sell it in 2.5 gallon jugs for about $10 to $15 each. Not sure what the 335 capacity is but X5 is a bit over 4 gallons. I am planning on putting in the 2.5 in passive tank every time it asks for the juice this way I don't have partial jugs open. The stuff crystallizes so would prefer to have it fresh.
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Old 12-04-2015, 10:21 PM
Master_Chase Master_Chase is offline
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Quote:
Originally Posted by FredoinSF View Post
Auto parts stores sell it in 2.5 gallon jugs for about $10 to $15 each. Not sure what the 335 capacity is but X5 is a bit over 4 gallons. I am planning on putting in the 2.5 in passive tank every time it asks for the juice this way I don't have partial jugs open. The stuff crystallizes so would prefer to have it fresh.
Agreed and buy 1 bottle from the dealer, chop the end off. Then get some PVC pipe and glue it on and attach the hose from the 2.5-gallon jug to the other end. It's cheaper and a lot easier than trying to fill without the special end.
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Old 12-05-2015, 08:15 AM
KeithS KeithS is offline
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Originally Posted by FredoinSF View Post
Auto parts stores sell it in 2.5 gallon jugs for about $10 to $15 each. Not sure what the 335 capacity is but X5 is a bit over 4 gallons. I am planning on putting in the 2.5 in passive tank every time it asks for the juice this way I don't have partial jugs open. The stuff crystallizes so would prefer to have it fresh.
.

This was my plan as well, to add the 2.5 gallons to the passive each time it asks for DEF. I even built a custom hose to go from the 2.5 gallon jug, to the fill port of the 335D (I modified a hose from Mercedes). Problem is I've gone 24K miles and it hasn't asked for any thus have never been able to test the hose. The dealer says nothing is wrong.

I think on the car the passive holds 4 gallons and the active holds 1.6 gallons.
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Old 12-05-2015, 09:30 AM
mefferso mefferso is offline
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Please please please do NOT let them fill up your urea. It is disgusting that they charge that much! Its like a 1500% markup. Takes 5-10 minutes to do it yourself. I believe this Mercedes hose fits our nozzle which will make it spill free: http://www.ebay.com/itm/Mercedes-W16...tRg42v&vxp=mtr I do like some of the others and just add 2.5 gal jug when asked to. Usage rate for me as been about 1 gallon per 5000 miles

Last edited by mefferso; 12-05-2015 at 09:33 AM.
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Old 12-05-2015, 10:21 AM
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Make them show you the BMW approved document directing hose/pump/tank fill. The DEF fill/refill instruction that I have seen addresses only bottle fill.

I suspect that the flow impulse - water hammer - on going full contributes to the brittle plastic tank failures. Plus the spillage makes a mess and they probably charge for that use too.

BMW will never fill my DEF tanks, it's not worth the risk, the cost, or my time to clean the mess.
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Old 12-05-2015, 11:37 AM
KeithS KeithS is offline
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Originally Posted by mefferso View Post
Please please please do NOT let them fill up your urea. It is disgusting that they charge that much! Its like a 1500% markup. Takes 5-10 minutes to do it yourself. I believe this Mercedes hose fits our nozzle which will make it spill free: http://www.ebay.com/itm/Mercedes-W16...tRg42v&vxp=mtr I do like some of the others and just add 2.5 gal jug when asked to. Usage rate for me as been about 1 gallon per 5000 miles
This hose will fit the car, but the end that goes on the DEF jug only fits a special container from Mercedes that no one stocks. I modified the DEF jug end of this hose to fit the much smaller connector that all the DEF jugs use. As it turns out a cap to 1 gallon coolant container is just the right size. The connector just pulls off, it's not permanently attached.

Attached is a picture of the modified but untested hose with the original fitting also in the picture.
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Last edited by KeithS; 12-06-2015 at 01:35 PM.
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Old 12-06-2015, 11:15 AM
mefferso mefferso is offline
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Originally Posted by KeithS View Post
This hose will fit the car, but the end that goes on the DEF jug only fits a special container from Mercedes that no one stocks. I modified the DEF jug end of this Jose to fit the much smaller connector that all the DEF jugs use. As it turns out a cap to 1 gallon coolant container is just the right size. The connector just pulls off, it's not permanently attached.
Oh cool, thanks for the tip!
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  #9  
Old 12-06-2015, 01:36 PM
KeithS KeithS is offline
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Oh cool, thanks for the tip!
Some pictures added to my post above.
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Old 12-06-2015, 02:04 PM
mefferso mefferso is offline
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Originally Posted by KeithS View Post
Some pictures added to my post above.
Awesome, thanks so much
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Old 12-05-2017, 09:53 AM
FastDEW FastDEW is offline
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I know this is reviving an old thread, but I cannot find the information I am looking for. I have always had the dealer refill my DEF, but now the car is asking for it and my oil change is still 3k miles away. I want to just add it myself. I have a 2016 BMW X3 28d

Do I really need a special hose? The car has some sort of blue funnel in the back. Is that for DEF?

If I buy a 2.5 Gal jug, will it all go into the tank? How much do I need to add. The car say 971 miles to empty on the DEF.

Thanks!
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Old 12-05-2017, 04:05 PM
n1das n1das is online now
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Quote:
Originally Posted by FastDEW View Post
I know this is reviving an old thread, but I cannot find the information I am looking for. I have always had the dealer refill my DEF, but now the car is asking for it and my oil change is still 3k miles away. I want to just add it myself. I have a 2016 BMW X3 28d

Do I really need a special hose? The car has some sort of blue funnel in the back. Is that for DEF?

If I buy a 2.5 Gal jug, will it all go into the tank? How much do I need to add. The car say 971 miles to empty on the DEF.

Thanks!
The DEF fill port has a blue cap on it. Should be next to fuel fill. Be careful and absolutely DO NOT add DEF to the FUEL! The blue funnel you are referring to may be the fuel funnel for when you need to get fuel and the only diesel pumps available are truck pumps with the large size nozzle which won't fit in our cars. I've had to use this funnel once in a long while when getting fuel. The adapter funnel is not for DEF.

I recommend buying one of the 1/2 gallon AdBlue DEF bottles from a BMW dealer or a VW/Audi dealer and start filling from this bottle. It may be enough DEF to get you by until your next service in 3k miles so start here. Where you buy the bottle and brand doesn't matter because DEF is DEF is DEF...is DEF. DEF is made to an ISO standard and used worldwide so it's a commodity item and all the same. The bottle screws onto the fill port fitting and you push on the bottle to get it to release the DEF into the tank. After you empty this bottle, save it and cut a hole in the bottom use it as a custom funnel to finish the DEF fill from a 2.5 gallon jug. Fill the custom funnel up with DEF from the 2.5 gallon jug, then push down for it to dump into the tank. Repeat the process until all 2.5 gallons is dumped in. You can fill directly from the 2.5 gallon jug but you should add the DEF slowly to prevent spilling DEF everywhere. With 3k miles to go before your next service, the 1/2 gallon of DEF from an AdBlue bottle might be just enough.

You don't need to cut the whole bottom off the 1/2 gallon AdBlue DEF bottle to use it as a custom funnel. You only need to make a hole large enough for the tube from the 2.5 gallon jug to fit in. A smaller hole is better because the rest of the bottle will catch any spattering of DEF. I used to cut the complete bottom off of a DEF bottle to use as a funnel but found myself spattered with DEF bubbling up through the air vent tube in the bottle.

I don't know what the total DEF capacity is on a 328d but it should be on the order of a few gallons. My E70 X5 35d holds a total of 5.95 US gallons, spread out into an active tank and a passive tank. The active tank IIRC holds a little over 0.6 gallons and the rest is in the passive tank. I only fill the passive tank. I don't know if the 328d has a single tank or a 2 tank system for the DEF. The 328d DEF fill port should be like my 535d so you probably have a single tank system.

Good luck.

Last edited by n1das; 12-05-2017 at 04:23 PM.
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Old 12-06-2017, 03:17 AM
glangford glangford is offline
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Quote:
Originally Posted by n1das View Post
The DEF fill port has a blue cap on it. Should be next to fuel fill. Be careful and absolutely DO NOT add DEF to the FUEL! The blue funnel you are referring to may be the fuel funnel for when you need to get fuel and the only diesel pumps available are truck pumps with the large size nozzle which won't fit in our cars. I've had to use this funnel once in a long while when getting fuel. The adapter funnel is not for DEF.

I recommend buying one of the 1/2 gallon AdBlue DEF bottles from a BMW dealer or a VW/Audi dealer and start filling from this bottle. It may be enough DEF to get you by until your next service in 3k miles so start here. Where you buy the bottle and brand doesn't matter because DEF is DEF is DEF...is DEF. DEF is made to an ISO standard and used worldwide so it's a commodity item and all the same. The bottle screws onto the fill port fitting and you push on the bottle to get it to release the DEF into the tank. After you empty this bottle, save it and cut a hole in the bottom use it as a custom funnel to finish the DEF fill from a 2.5 gallon jug. Fill the custom funnel up with DEF from the 2.5 gallon jug, then push down for it to dump into the tank. Repeat the process until all 2.5 gallons is dumped in. You can fill directly from the 2.5 gallon jug but you should add the DEF slowly to prevent spilling DEF everywhere. With 3k miles to go before your next service, the 1/2 gallon of DEF from an AdBlue bottle might be just enough.

You don't need to cut the whole bottom off the 1/2 gallon AdBlue DEF bottle to use it as a custom funnel. You only need to make a hole large enough for the tube from the 2.5 gallon jug to fit in. A smaller hole is better because the rest of the bottle will catch any spattering of DEF. I used to cut the complete bottom off of a DEF bottle to use as a funnel but found myself spattered with DEF bubbling up through the air vent tube in the bottle.

I don't know what the total DEF capacity is on a 328d but it should be on the order of a few gallons. My E70 X5 35d holds a total of 5.95 US gallons, spread out into an active tank and a passive tank. The active tank IIRC holds a little over 0.6 gallons and the rest is in the passive tank. I only fill the passive tank. I don't know if the 328d has a single tank or a 2 tank system for the DEF. The 328d DEF fill port should be like my 535d so you probably have a single tank system.

Good luck.
See the video attached to this:

https://www.bimmertools.com/DEF-scre...3190441139.htm

Recommends putting a small tube to the air vent tube and looping it back into the 'funnel' to prevent the burping.
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Old 12-06-2017, 08:24 AM
mattebury mattebury is offline
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Originally Posted by glangford View Post
See the video attached to this:

https://www.bimmertools.com/DEF-scre...3190441139.htm

Recommends putting a small tube to the air vent tube and looping it back into the 'funnel' to prevent the burping.
You are referring to the old style DEF filling system, FastDEW has a 2016, and the newer cars have a blue DEF port right next to the diesel cap behind the fuel door.

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Last edited by mattebury; 12-06-2017 at 08:26 AM.
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Old 12-06-2017, 09:45 AM
FastDEW FastDEW is offline
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Quote:
Originally Posted by n1das View Post
The DEF fill port has a blue cap on it. Should be next to fuel fill. Be careful and absolutely DO NOT add DEF to the FUEL! The blue funnel you are referring to may be the fuel funnel for when you need to get fuel and the only diesel pumps available are truck pumps with the large size nozzle which won't fit in our cars. I've had to use this funnel once in a long while when getting fuel. The adapter funnel is not for DEF.

I recommend buying one of the 1/2 gallon AdBlue DEF bottles from a BMW dealer or a VW/Audi dealer and start filling from this bottle. It may be enough DEF to get you by until your next service in 3k miles so start here. Where you buy the bottle and brand doesn't matter because DEF is DEF is DEF...is DEF. DEF is made to an ISO standard and used worldwide so it's a commodity item and all the same. The bottle screws onto the fill port fitting and you push on the bottle to get it to release the DEF into the tank. After you empty this bottle, save it and cut a hole in the bottom use it as a custom funnel to finish the DEF fill from a 2.5 gallon jug. Fill the custom funnel up with DEF from the 2.5 gallon jug, then push down for it to dump into the tank. Repeat the process until all 2.5 gallons is dumped in. You can fill directly from the 2.5 gallon jug but you should add the DEF slowly to prevent spilling DEF everywhere. With 3k miles to go before your next service, the 1/2 gallon of DEF from an AdBlue bottle might be just enough.

You don't need to cut the whole bottom off the 1/2 gallon AdBlue DEF bottle to use it as a custom funnel. You only need to make a hole large enough for the tube from the 2.5 gallon jug to fit in. A smaller hole is better because the rest of the bottle will catch any spattering of DEF. I used to cut the complete bottom off of a DEF bottle to use as a funnel but found myself spattered with DEF bubbling up through the air vent tube in the bottle.

I don't know what the total DEF capacity is on a 328d but it should be on the order of a few gallons. My E70 X5 35d holds a total of 5.95 US gallons, spread out into an active tank and a passive tank. The active tank IIRC holds a little over 0.6 gallons and the rest is in the passive tank. I only fill the passive tank. I don't know if the 328d has a single tank or a 2 tank system for the DEF. The 328d DEF fill port should be like my 535d so you probably have a single tank system.

Good luck.
Thank you for this very thoughtful reply. I greatly appreciate it. I am going to follow your instructions exactly. Makes total sense.
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Old 12-06-2017, 09:46 AM
FastDEW FastDEW is offline
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Originally Posted by mattebury View Post
You are referring to the old style DEF filling system, FastDEW has a 2016, and the newer cars have a blue DEF port right next to the diesel cap behind the fuel door.

Yes. This is what mine has. Thanks.
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Old 12-07-2017, 03:11 AM
glangford glangford is offline
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Yes, I realize it's the old style system, but the same phenomena of burping through the vent tube applies, it's just a different location.

BTW does anyone know what the capacity for DEF in the 328d is?
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Old 12-07-2017, 06:11 AM
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It is in your owners manual.
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Old 12-07-2017, 04:22 PM
n1das n1das is online now
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Originally Posted by FastDEW View Post
Thank you for this very thoughtful reply. I greatly appreciate it. I am going to follow your instructions exactly. Makes total sense.
Glad to help. I say get a 1/2 gallon AdBlue bottle and put that in first. It might be enough to get you by until your service due in 3k miles. Save the bottle and cut a hole in the bottom to reuse it as a custom funnel for future DEF fills from a 2.5 gallon jug.

Good luck.
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Old 12-08-2017, 05:24 PM
FastDEW FastDEW is offline
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I put 2.5 Gal into the DEF tank today. It worked well using the BMW bottle as my funnel.

Is there anyway to find out the capacity of the tank? I have searched all of the manuals that came with my X3 and there is no capacity spec for the DEF tank?

2016 X3 28d

If I called the dealer, would they know?
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Old 12-08-2017, 06:22 PM
ard ard is offline
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Did you look in the owners manual??

Dealer might know, or just as easily give you the wrong info
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Old 12-08-2017, 06:53 PM
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Per owners manual, at least 1.5 gallons
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Old 12-09-2017, 05:18 AM
FastDEW FastDEW is offline
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I have read the owners manual very carefully. The tank capacity is not listed. Amazing given that it should be listed at least next to the fuel tank capacity.
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Old 12-09-2017, 05:39 AM
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I have read the owners manual very carefully. The tank capacity is not listed. Amazing given that it should be listed at least next to the fuel tank capacity.
That is correct, it is not "listed" but buried in the text. YOU have to read and understand the whole thing.
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Last edited by Doug Huffman; 12-09-2017 at 05:41 AM.
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Old 12-09-2017, 06:09 AM
FastDEW FastDEW is offline
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That is correct, it is not "listed" but buried in the text. YOU have to read and understand the whole thing.
I can read. It is NOT listed in the text. Not there. I can post a photo of the pages dealing with SCR, but not going to spend the time to do so.

I READ the manual. Not listed. Not in the text. Not there. Period!

I also searched the web carefully. Not able to find it the information.

And your earlier reply of "at least 1.5 gallons" is not the capacity of the tank. That just says it can hold, more than 1.5 gallons......
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