Transmission issues...I think
12-27-2006, 11:49 PM
#1
Super Member
Thread Starter
Transmission issues...I think
My car (05 55 12k miles) use to stay in manual mode or at least hold a gear in sport when a downshift was applied. Now it will automatically shift into a higher gear 2nd to 3rd or even 4th without any driver input in both S and M mode (no throttle input either). I have also noticed when I select Manual mode it will switch over to Sport again without my input. Is this normal or am I nutz?
Any help or explanation is appreciated.
Any help or explanation is appreciated.
05-11-2010, 03:18 PM
#5
Member
Join Date: May 2008
Location: Calgary, Alberta, Canada
Posts: 80
Likes: 0
Received 1 Like
on
1 Post
2004 E55 AMG
I have recently encountered this exact problem myself. I drive in manual mode 80% of the time, and as of a couple of weeks ago, it has started kicking me out of manual mode and back into sport mode. I will put it back into manual, and sometimes it may stay for a minute, but it will always revert back to sport mode. One day, I could not even select manual mode - it would toggle between sport and comfort only.
Yesterday, I was driving in sport mode and pinned the throttle while cruising at 45mph. The transmission downshifted, yet NO throttle was physically applied to the engine. I kept cruising at 45 with my foot to the floor.
To the stealership I go - unless anyone has some insight into this. It sounds expensive.
Note: I do have Renntech software (although I highly doubt it is the culprit)
Yesterday, I was driving in sport mode and pinned the throttle while cruising at 45mph. The transmission downshifted, yet NO throttle was physically applied to the engine. I kept cruising at 45 with my foot to the floor.
To the stealership I go - unless anyone has some insight into this. It sounds expensive.
Note: I do have Renntech software (although I highly doubt it is the culprit)
05-11-2010, 03:26 PM
#7
Senior Member
Join Date: May 2008
Location: Houston/Plano, TX
Posts: 289
Likes: 0
Received 17 Likes
on
15 Posts
2005 E55, 2009 VW GLI
this may help with your M to S mode issue. it could also be a software issue as MB Forever stated.
https://mbworld.org/forums/w211-amg/...ay-m-mode.html
https://mbworld.org/forums/w211-amg/...ay-m-mode.html
Trending Topics
05-12-2010, 10:15 AM
#8
L8Apex,
It is pretty funny to see you on this board as me and you have similar taste in cars.
'91 965 Turbo... You sold it but i still have mine.
'98 M3 Turbo....Mine was a four door...Sold it 18 months ago.
'06 E55... Bought it last year with 16,000 miles...It now has 33,000
Love this car.
Good Luck with your transmission issues though.
It is pretty funny to see you on this board as me and you have similar taste in cars.
'91 965 Turbo... You sold it but i still have mine.
'98 M3 Turbo....Mine was a four door...Sold it 18 months ago.
'06 E55... Bought it last year with 16,000 miles...It now has 33,000
Love this car.Good Luck with your transmission issues though.
01-23-2011, 05:17 AM
#10
Member
Join Date: May 2008
Location: Calgary, Alberta, Canada
Posts: 80
Likes: 0
Received 1 Like
on
1 Post
2004 E55 AMG
Just thought I would bring everyone up to date on the solution to my "transmission problem". The source of the issue was the engine oil temp sensor. No engine warning light was tripped, to my surprise, but it did cause the ECU to enter into safe mode. I hope this helps anyone else with similar diagnostic challenges!
01-23-2011, 05:44 AM
#11
Super Member
Join Date: Apr 2009
Location: North Carolina
Posts: 720
Likes: 0
Received 0 Likes
on
0 Posts
2004 E55 AMG
Just thought I would bring everyone up to date on the solution to my "transmission problem". The source of the issue was the engine oil temp sensor. No engine warning light was tripped, to my surprise, but it did cause the ECU to enter into safe mode. I hope this helps anyone else with similar diagnostic challenges!
Glad everything was taken care of. I knew it had to be a sensor or software issue.
