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E63 / E64 6 Series (2004 - 2010)
The E63/E64 BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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  #1  
Old 02-16-2017, 11:38 AM
jspbtown jspbtown is offline
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Location: Western Mass
 
Join Date: Oct 2015
Posts: 60
Mein Auto: 2004 645
Another tranny issue....

2004 645ci. 70k miles. Not a SMG

Symptoms:
* - 5th gear hiccup - Not there all the time but when cruising at about 40 mph and 1200-1500 rpms.
* - Very slight delay in reverse engagement
* - Twice now, while merging onto highway and getting a 6th gear to 5th gear down shift, it seems to miss the gear momentarily and it goes into failsafe mode. If I baby it then its fine.

I have had an indy replace the fluid. No change. They also replaced the sleeve.


Everything I read suggests a valvebody malfunction. Maybe just the solenoids and a zip kit but I was thinking that to be sure I would go for the entire valve body. However two indy places have said that based on what I am telling them that they don't think its a valvebody and likely a full tranny rebuild. I really don't see many people getting full rebuilds.

First indy did quote me 5-6 hours labor for valvebody replacement. That fair?

And do people think a valvebody is a good way to go?
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  #2  
Old 02-16-2017, 07:50 PM
HerbP HerbP is online now
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Location: Georgia
 
Join Date: Jul 2009
Posts: 5,094
Mein Auto: 2005 645Ci & 2007 750Li
Quote:
Originally Posted by jspbtown View Post
2004 645ci. 70k miles. Not a SMG

Symptoms:
* - 5th gear hiccup - Not there all the time but when cruising at about 40 mph and 1200-1500 rpms.
* - Very slight delay in reverse engagement
* - Twice now, while merging onto highway and getting a 6th gear to 5th gear down shift, it seems to miss the gear momentarily and it goes into failsafe mode. If I baby it then its fine.

I have had an indy replace the fluid. No change. They also replaced the sleeve.


Everything I read suggests a valvebody malfunction. Maybe just the solenoids and a zip kit but I was thinking that to be sure I would go for the entire valve body. However two indy places have said that based on what I am telling them that they don't think its a valvebody and likely a full tranny rebuild. I really don't see many people getting full rebuilds.

First indy did quote me 5-6 hours labor for valvebody replacement. That fair?

And do people think a valvebody is a good way to go?
It sounds like you could have several problems? I would drop the valve body & inspect the Mechatronic's adapter when the valve body is lowered. You can let id own enough to access the adapter seal, & then determine if it is hard & brittle. If it is, that is a good place to start. You can not order a zipkit until you know exactly which valve body is installed in the tranny. If you took a pic while the pan was off, you will know which one you have. Until you find the exact problem, I would not continue driving the car. The risk of burning clutches is an expensive option. With the proper software you can read BMW codes that can not be done with OBD2 readers. You will be able then to run test on the tranny to make a better decision on what is the exact problem.
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  #3  
Old 02-19-2017, 04:50 AM
Mulchman's Avatar
Mulchman Mulchman is offline
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Location: Valley Forge, PA
 
Join Date: Jul 2011
Posts: 618
Mein Auto: '07 650i
Quote:
Originally Posted by jspbtown View Post
2004 645ci. 70k miles. Not a SMG

Symptoms:
* - 5th gear hiccup - Not there all the time but when cruising at about 40 mph and 1200-1500 rpms.
* - Very slight delay in reverse engagement
* - Twice now, while merging onto highway and getting a 6th gear to 5th gear down shift, it seems to miss the gear momentarily and it goes into failsafe mode. If I baby it then its fine.

I have had an indy replace the fluid. No change. They also replaced the sleeve.


Everything I read suggests a valvebody malfunction. Maybe just the solenoids and a zip kit but I was thinking that to be sure I would go for the entire valve body. However two indy places have said that based on what I am telling them that they don't think its a valvebody and likely a full tranny rebuild. I really don't see many people getting full rebuilds.

First indy did quote me 5-6 hours labor for valvebody replacement. That fair?

And do people think a valvebody is a good way to go?


Sounds like a Zipkit to me. Your problems sound identical to my X5 4.4 before I did the kit. Runs like a champ now.
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  #4  
Old 02-19-2017, 09:23 AM
HerbP HerbP is online now
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Mein Auto: 2005 645Ci & 2007 750Li
I currently have my 750 tranny valve body apart. The Mechatronic's adapter came out in 3 pieces. I had some hard 1 - 2 shifts, & some sluggish shifts at low speed. With the adapter leaking fluid around the seal. this is probably my only problem. The 4 rubber seals where hard, & stubborn to get out. I was surprised how easy my sealing sleeve popped out. I almost decides to drop the exhaust to get the seal out, but I am glad I did not. I measured the fluid I drained out, & it was 1.5 qts low. I am going to look very closely at the valve body to determine if I am going to install the ZipKit, or just replace my other seals? I can take pics if anyone needs them.
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  #5  
Old 02-20-2017, 10:18 AM
Kevin Bowen Kevin Bowen is offline
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Posts: 120
Mein Auto: 2001 E39 & 2005 645 ci
I had the same problem. Replaced the solenoids, problem solved.
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