Something every S63/N63 owner should check II

[dentprotony@gmail.com]

I spent months chasing intermittent off the line hesitation and occasional ‘drivetrain malfunction’ message , very seldom i would get multiple misfire code as well, so finally was able to find an issue, thanks to Jamie Showoff on FB f85 forums for mentioning this to me. Hope this helps someone out there because i was lost and replaced a lot of parts chasing this issue

[zero2sixtyZ]

Interesting find. Was trying to get a grasp on the part location via diagrams / images. This is the part in question?:

https://www.realoem.com/bmw/enUS/sho...92#11668605976

https://www.fcpeuro.com/products/bmw...mp-11668605976

[dentprotony@gmail.com]

Yes correct, very easy to access, i had 2 shops give up trying to diagnose the issue. One forum member from Australia suggested this and that was the solution

Originally Posted by zero2sixtyZ

Interesting find. Was trying to get a grasp on the part location via diagrams / images. This is the part in question?:

https://www.realoem.com/bmw/enUS/sho...92#11668605976

https://www.fcpeuro.com/products/bmw...mp-11668605976

[blown99]

Did you buy the Klifex part on Amazon? That’s the one that looks like it might work?

[Bobby_Drake]

Originally Posted by dentprotony@gmail.com

I spent months chasing intermittent off the line hesitation and occasional ‘drivetrain malfunction’ message , very seldom i would get multiple misfire code as well, so finally was able to find an issue, thanks to Jamie Showoff on FB f85 forums for mentioning this to me. Hope this helps someone out there because i was lost and replaced a lot of parts chasing this issue

Did you have any symptoms with your brake?

I have a similar issue where I got the drivetrain malfunction/check engine light and the car lost power. I've just replaced coils/plugs about 3K miles prior so I was confident it wasn't that. However, the hesitation/loss of power felt similar. Then the next day when I connected an OBD II scanner, no error codes and then the DTM/CEL went away and the car drove fine...

Of course I am not at ease knowing something is brewing without any CEL anymore.

[dentprotony@gmail.com]

Originally Posted by Bobby_Drake

Did you have any symptoms with your brake?

I have a similar issue where I got the drivetrain malfunction/check engine light and the car lost power. I've just replaced coils/plugs about 3K miles prior so I was confident it wasn't that. However, the hesitation/loss of power felt similar. Then the next day when I connected an OBD II scanner, no error codes and then the DTM/CEL went away and the car drove fine...

Of course I am not at ease knowing something is brewing without any CEL anymore.

When was the last time you serviced your transfer case?

[Bobby_Drake]

Originally Posted by dentprotony@gmail.com

When was the last time you serviced your transfer case?

Just had it at 52,000 mi. I'm at 58,8XX

[FirstBMWLA]

This has got me thinking.
I've long had occasional symptom where if I came to a 4way stop and barely stopped. Then tried to quickly accelerate there will be noticeable hesitation. No error but acts like I'm not hitting gas briefly.

[Bobby_Drake]

As Tony showed on the video, this is an easy DIY. Due to a recent DTM/CEL, I replaced mine since this can be an issue anyway (although mine was ok @ 58,8XX mi.)

[tfunk88]

Looks like this part is actually available for sale vs buying the entire vacuum pump. And it’s “Not China Valve!” lol

https://www.ebay.com/itm/11504578734...3Avlp_homepage

[shimmy23]

Originally Posted by tfunk88

Looks like this part is actually available for sale vs buying the entire vacuum pump. And it’s “Not China Valve!” lol

https://www.ebay.com/itm/11504578734...3Avlp_homepage

from Klifex which would be the same as the amazon?

[tfunk88]

Originally Posted by shimmy23

from Klifex which would be the same as the amazon?

Appears to be the case

Amazon says a few days shipping, eBay the listing says a few weeks lol

[shimmy23]

Originally Posted by tfunk88

Appears to be the case

Amazon says a few days shipping, eBay the listing says a few weeks lol

i can only find the actual rubber piece, not the entire black housing.

[dentprotony@gmail.com]

Originally Posted by shimmy23

i can only find the actual rubber piece, not the entire black housing.

Have you tried klifex website

[shimmy23]

Originally Posted by dentprotony@gmail.com

Have you tried klifex website

Tony, that woulda been too easy

https://klifex.com/klapan-vakuumnogo...5976-724807350

[Bobby_Drake]

So you guys don't have to go through returning and trying to get a refund on the wrong part, I'd like to clarify the correct one since I've just replaced mine.

See the attached photos. Notice the difference in the shapes of the end where the hose connects. I've marked the incorrect one with an X. The other piece is the actual one off my F85.

I initially was sent the wrong one from eBay and after going back and forth, etc. I just ordered the right one from a different seller.

[tfunk88]

Originally Posted by shimmy23

i can only find the actual rubber piece, not the entire black housing.

It’s listed on Amazon, but for $5 more than on eBay. And then looks like direct purchase from their website is the cheapest of all

[bmray]

Ordered mine direct from Klifex and got to watch the shipping track the small piece all the way from Ukraine...should have just Amazoned it lol.