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fumoto valve for CD?

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Old Nov 6, 2025 | 04:20 PM
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Default fumoto valve for CD?

dunno if any of you are tired of drain plug seal roulette, but I have long considered a fumoto valve for easy oil changes now that our CDs are out of warranty

Fumoto doesn't list a compatible one with our Diesels however they should be the same as the Audi 3.0 diesels?

https://www.fumotousa.com/cars-picku...3-0l-v6-diesel

thoughts?

If it does fit, I'm thinking 90 degree elbow so I can hook up a drain line to clear the subframe bar
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Old Nov 6, 2025 | 04:34 PM
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Originally Posted by Gptoyz
dunno if any of you are tired of drain plug seal roulette, but I have long considered a fumoto valve for easy oil changes now that our CDs are out of warranty

Fumoto doesn't list a compatible one with our Diesels however they should be the same as the Audi 3.0 diesels?

https://www.fumotousa.com/cars-picku...3-0l-v6-diesel

thoughts?

If it does fit, I'm thinking 90 degree elbow so I can hook up a drain line to clear the subframe bar
This has been discussed, do a search, if I remember correctly, it will work but you will have to modify the under belly pan for it to fit.
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Old Nov 6, 2025 | 08:15 PM
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@Gptoyz What do you mean by "drain plug seal roulette"?
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Old Nov 6, 2025 | 08:34 PM
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Originally Posted by terryb
@Gptoyz What do you mean by "drain plug seal roulette"?
whether or not the replacement drain plug and washer would seal when it went to the dealer or would I left with a weeping mess on my garage floor
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Old Nov 6, 2025 | 08:35 PM
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Originally Posted by sasilverbullet
This has been discussed, do a search, if I remember correctly, it will work but you will have to modify the under belly pan for it to fit.
found it thanks
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Old Nov 6, 2025 | 09:14 PM
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you do not need to modify the belly pan for the fumoto valve to fit

I use the MH-10 to connect a hose for extension to drain in combination with the F106SX valve.

Last edited by ChrisTDI; Nov 6, 2025 at 09:16 PM.
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Old Nov 7, 2025 | 12:56 AM
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I've used the F106SX since 2018. Works great.

Last edited by YaNi; Nov 7, 2025 at 12:58 AM.
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Old Nov 7, 2025 | 09:29 AM
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Originally Posted by Gptoyz
whether or not the replacement drain plug and washer would seal when it went to the dealer or would I left with a weeping mess on my garage floor
I'm pretty sure that's exactly what happened to me yesterday. Lost a quart in 120 miles of driving, most into the splash pan and then onto my garage floor.

Usually I change my own oil with an extractor from above, but occasionally I like my mechanic to go through the car. And...it had a CEL that wouldn't go away.

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Old Nov 7, 2025 | 10:51 AM
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Originally Posted by lml999
I'm pretty sure that's exactly what happened to me yesterday. Lost a quart in 120 miles of driving, most into the splash pan and then onto my garage floor.

Usually I change my own oil with an extractor from above, but occasionally I like my mechanic to go through the car. And...it had a CEL that wouldn't go away.
Ha, I had a similar experience yesterday but with my oil extractor.

I usually connect the fumoto to a hose that goes directly to the extractor so i can pump it out right into the tank i use to refill bottles to send back to fcpeuro. The extractor as handles like a bike pump and when i pumped the extractor, oil sprayed out both sides of the handle, usually its only air. Oil got all over me and the cayenne. This method was meant to keep oil contained! I usually keep oil in the extractor and empty when needed. I must have tipped the extractor over too far and filled the vacuum system with oil. Well I live to learn.
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Old Nov 7, 2025 | 02:05 PM
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Originally Posted by lml999
I'm pretty sure that's exactly what happened to me yesterday. Lost a quart in 120 miles of driving, most into the splash pan and then onto my garage floor.

Usually I change my own oil with an extractor from above, but occasionally I like my mechanic to go through the car. And...it had a CEL that wouldn't go away.

it sounds like the dumbest thing in 2025 between me, my independent and even the dealer

but basically it's luck of the draw between drain plugs and washers, stupid car is so sensitive but now I've learned to just to keep my independent stocked with 10 pcs of ea of my personal inventory although he and I both have fits when we even think about dropping the oil from below

the drops collect in the splash pan, till it reaches the volume that it can over flow and and dirty the hell out of the floor and the rest of the under tray of the car so off to the DIY car wash with my 104 degreaser

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Old Nov 7, 2025 | 08:10 PM
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I've noticed that the CD oil pan crush washers have a seam on one side. After orienting the crush washer so the seam faces down to the floor I have not had any oil leaks after oil changes. Knock on wood!
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Old Nov 8, 2025 | 07:17 PM
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Stahlbus is another option but it's a 2 piece system.
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Old Nov 9, 2025 | 10:57 AM
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Why are you guys messing with the drain plug at all? I suck the oil out through the dipstick tube using an oil extractor. Have been doing it for years and years, works great. Not messy, no need to lift up the car or mess with the drain plug. You complete the entire oil change from the top side.
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Old Nov 9, 2025 | 01:55 PM
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Originally Posted by docwyte
Why are you guys messing with the drain plug at all? I suck the oil out through the dipstick tube using an oil extractor. Have been doing it for years and years, works great. Not messy, no need to lift up the car or mess with the drain plug. You complete the entire oil change from the top side.
Personally, Ive noticed that it doesnt get all of the oil
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Old Nov 9, 2025 | 06:08 PM
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Originally Posted by docwyte
Why are you guys messing with the drain plug at all? I suck the oil out through the dipstick tube using an oil extractor. Have been doing it for years and years, works great. Not messy, no need to lift up the car or mess with the drain plug. You complete the entire oil change from the top side.
I just don't see the benefit. I've had other German vehicles and went back to the regular method with a Fumoto valve. On the CD it points the stream of oil down so it doesn't blast the crossmember, and greatly reduces the changes of stripping the oil pan threads.
The vacuum method is pretty slow normally and if the oil is cold it takes an eternity. You still need to lift the vehicle to rotate the tires and once in the air the under covers come off pretty quick.

Last edited by YaNi; Nov 9, 2025 at 06:10 PM.
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