Smg pump failure - BMW M5 Forum and M6 Forums
E60 M5 and E61 M5 Touring Discussion 2005- Advertiser's Forum

 1Likes
Reply
 
LinkBack Thread Tools Rate Thread Display Modes
post #1 of 34 Old 30th September 2011, 09:33 PM Thread Starter
V8haha
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Dec 2008
Location: Atlanta
Posts: 138
Thanks: 0
Thanked 3 Times in 3 Posts
Smg pump failure

So it looks as if my 2006 M5 SMG is having pressure faults. I was in M mode and shifting hard from 3rd to 4th and the car jumped to "N" and I got the Transmission warning. I pulled over, let the car sit (while I could smell the clutch burning) and reset the battery. 5 minutes later, car was fine and I drove it home. Took the car to the dealer today and he said there was a code stored for "pressure faults." Ironically I came home today and noticed oil on the ground of my garage. I thought I had an oil leak but then it occurred to me it could be SMG fluid. I called my tech and sure enough it was low on SMG fluid and he is going to see if there's a leak.

I now have 2 questions.

1) Ive been searching the boards and it looks like there was a TSB for the SMG pump for early build M5's but that was only covered while the car was under warranty. Since my car is out of warranty now, does that mean the TSB no longer applies? Was there ever a recall?

2) What aftermarket warranty do you know of has covered the SMG pump? All the ones ive seen say it only covers lubricated parts in the transmission.

Thanks in advance...
V8haha is offline  
Sponsored Links
Advertisement
 
post #2 of 34 Old 30th September 2011, 10:51 PM
eddiebmr33
Member, Sport: Off DSC: On (>50 posts)
 
eddiebmr33's Avatar
 
Join Date: Apr 2011
Location: CA
Posts: 63
Thanks: 0
Thanked 2 Times in 2 Posts
Mine is out too. Or at least it seems it is according to my tech. I was cruising along in 6th gear at about 50 mph...cruising. Got the trans fault warning and the car stuck in neutral. Checked the relay and read the codes which all point to SMG pump. But what if it's just the accumulator? How can I check that? What else should we look for?

"I wanna go fast" - Ricky Bobby
eddiebmr33 is offline  
post #3 of 34 Old 30th September 2011, 11:05 PM
sikand
Member, Sport: On DSC: Off
 
sikand's Avatar
 
Join Date: Oct 2001
Location: Northern California
Posts: 230
Thanks: 15
Thanked 14 Times in 12 Posts
I've been through this and researched all the options and here is my analysis:

The SMG hydraulic unit costs about $3500.

It consists of 3 main groups:

The pressure system (pump/accumulator), the slave cylinder, the solenoid assembly.

The pressure system parts as well as the slave can be purchased separately.
If the system leaks, it's almost always the slave.
A leaky system will always generate pressure errors as will pump issues and solenoid issues.
So it is VIRTUALLY impossible to tell if if you have more than one issue that is affecting the unit.

The codes are normally: pump on time excessive and pressure undershoot issues.

BMW generally recommends replacing the entire SMG Hydraulic Unit if you have pressure issues or any leaks.

This is very good advice because:

a) You will end up dropping the transmission multiple times if you don't solve the problem with the first replacement
b) You may end up not being able to solve the problem with incremental replacement and end up having to replace the hydraulic unit and paying much more because the invididual parts are not cheap or returnable

The most cost effective solution in the face of leaks/pressure issues is to replace the hydraulic unit.

There is IMHO no other sensible way forward.

Current:
2008 Ferrari 612 Scaglietti (special)
2007 Maserati QP Sport GT DuoSelect (daily)
2008 Lexus LX 570 (wife)
2006 Acura RSX-Type S (kid)
2006 Chevy Starcraft Express Van (hauling/camping)
2012 Fisker Karma (green)
2006 E60 M5 (157K miles)

Self destructed:

2008 E60 M5 Dinan Stroker (broken rings, very bad Dinan experience)

Previous:
2006 Mitsu EVO IX MR (50K miles of fun)
1991 E34 M5 (120K miles)
1988 E28 M5 (168K miles)
1989 Alfa Milano QV (only car I sold for a profit)
1987 Alfa Milano QV (awesome handling car)
1966 Ford Mustang 289 A-Code (bought from original owner, should have kept it, just couldn't)
1990 Alfa 33 1.7 IE (sold when I left the UK)
1980 Alfa 33 1.5 (my first car)

Last edited by sikand; 30th September 2011 at 11:05 PM.
sikand is offline  
 
post #4 of 34 Old 2nd October 2011, 07:46 PM Thread Starter
V8haha
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Dec 2008
Location: Atlanta
Posts: 138
Thanks: 0
Thanked 3 Times in 3 Posts
Thanks for the advice. Im waiting to hear back from the dealer on the leak.... I found the whole system listed on Tischer for 2600. How much should I expect in labor? I plan on taking it to a indy shop as the dealer is charging an arm and a leg.
V8haha is offline  
post #5 of 34 Old 2nd October 2011, 11:09 PM
mikster994
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Jan 2011
Location: Houston
Posts: 118
Thanks: 2
Thanked 7 Times in 7 Posts
Had the same thing happen to me a while back. Cruising at 40 and trans light came on and car went to neutral. Reset the electronics and was ok for all of 1/2 block and had eng malfunction and stopped. Dealer said it was pointing in the direction of the SMG accumulator, but they had no way of telling if it was more, so suggested the whole thing. Total cost ~4500. Had also been getting DSC faults and getting a little concerned with the clutch with 48K and still original. Big thing is no warranty. Decided to trade on an '11 M3. If I remember they said was about 11 hours labor.

Mickey

Mickey

1995 911 C2 Black / Black
Brembo Big Red Brake Kit
18" RH P3 Wheels
MO30 Suspension Kit
Turbo Wing
1200W Stereo

2007 SL 550 Black / Black (wifes car)

2007 M5 - Black Sapphire / Black
mikster994 is offline  
post #6 of 34 Old 3rd October 2011, 02:11 AM
Military
Member, Sport: On DSC: Off
 
Military's Avatar
 
Join Date: May 2011
Location: Florida
Posts: 211
Thanks: 8
Thanked 12 Times in 9 Posts
Military is offline  
post #7 of 34 Old 3rd October 2011, 03:27 AM Thread Starter
V8haha
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Dec 2008
Location: Atlanta
Posts: 138
Thanks: 0
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by Military View Post
where do you fill the smg fluid at?
I believe theres a SMG reservoir in the engine bay. Not sure where it is on the M5 but on my M3 it was stuck to the intake manifold.
V8haha is offline  
post #8 of 34 Old 3rd October 2011, 01:17 PM
Hasan Shaikh
M5 Expert (>4000)
 
Hasan Shaikh's Avatar
 
Join Date: Aug 2009
Location: UAE
Age: 40
Posts: 7,023
Thanks: 2,944
Thanked 1,150 Times in 924 Posts
If it can be identified reliably that the SMG Pump is at fault, then it is possible to replace the pump only.

This is very cost effectiant as the pump alone costs around USD 300. I am not sure if the $tealer$hip will opt to do that, but it is possible.
Hasan Shaikh is offline  
post #9 of 34 Old 3rd October 2011, 03:25 PM
Military
Member, Sport: On DSC: Off
 
Military's Avatar
 
Join Date: May 2011
Location: Florida
Posts: 211
Thanks: 8
Thanked 12 Times in 9 Posts
Quote:
Originally Posted by V8haha View Post
I believe theres a SMG reservoir in the engine bay. Not sure where it is on the M5 but on my M3 it was stuck to the intake manifold.
On my e46 m3 also but I brought this question up before on this board and no one had the slightest idea... Strange
Military is offline  
post #10 of 34 Old 3rd October 2011, 03:29 PM
Military
Member, Sport: On DSC: Off
 
Military's Avatar
 
Join Date: May 2011
Location: Florida
Posts: 211
Thanks: 8
Thanked 12 Times in 9 Posts
Quote:
Originally Posted by V8haha View Post

2) What aftermarket warranty do you know of has covered the SMG pump? All the ones ive seen say it only covers lubricated parts in the transmission.

Thanks in advance...
Mine does and I'm sure Zurich easy/maxcare also.
Military is offline  
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW M5 Forum and M6 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 2 (0 members and 2 guests)
 



Similar Threads
Thread Thread Starter Forum Replies Last Post
SMG Hydraulic Pump Failure? pacemkr E60 M5 and E61 M5 Touring Discussion 14 3rd March 2014 02:14 PM
SMG Pump failure phengm3 E60 M5 and E61 M5 Touring Discussion 8 11th January 2011 04:30 PM
Fuel pump failure ssomed E39 M5 and E52 Z8 Discussion 1 29th July 2008 05:24 PM
Vanos Oil Pump Failure Barry Lausch E60 M5 and E61 M5 Touring Discussion 53 15th April 2007 04:49 PM
S38 Water Pump Failure Rod E34 M5 Discussion 0 3rd July 2000 06:02 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome