Dashboard display not showing gears - Page 2 - Mercedes-Benz Forum
Reply
 
LinkBack Thread Tools Display Modes
post #11 of 27 (permalink) Old 03-12-2016, 07:54 AM
Moderator
 
rudeney's Avatar
 
Date registered: Dec 2004
Vehicle: CURRENT: 2011 SL550, 2010 ML350 FORMER: 2007 CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD
Location: Birmingham, AL
Posts: 18,589
Mentioned: 38 Post(s)
Quoted: 1718 Post(s)
Lifetime Premium Member
Garage
Yes, the pilot bushing seal on the transmission electrical connector leaks and oil can wick (siphon through the wires) into the TCU, which is located under the front passenger foot well. You might check that - pull the carpet down from under the dash, remove the foam insulator panel, and the TCU is attached to the back side of the metal panel.

I see no mention in SDS of any coding necessary when replacing the AGS.

--

- RODNEY


So you want to send me a private message? Please read this first:


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


My Stable:


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
rudeney is offline  
Sponsored Links
Advertisement
 
post #12 of 27 (permalink) Old 03-12-2016, 08:11 AM Thread Starter
BenzWorld Junior Member
 
Date registered: Mar 2016
Vehicle: 2003 C220 CDI
Location: UK
Posts: 11
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Send a message via Skype™ to Cass
(Thread Starter)
Wow ! another prompt reply Thank you,
I'll be under the carpet first thing tomorrow.
I bow to your expertise.
Regards Cass
Cass is offline  
post #13 of 27 (permalink) Old 03-12-2016, 08:15 AM Thread Starter
BenzWorld Junior Member
 
Date registered: Mar 2016
Vehicle: 2003 C220 CDI
Location: UK
Posts: 11
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Send a message via Skype™ to Cass
(Thread Starter)
Incidently you said front passenger footwell on left side. Is it not on the right ? forgive my ignorance but a thread i read said ALL W203 and All W211 models were on the passenger side which for american and european is the right side
Cass is offline  
Sponsored Links
Advertisement
 
post #14 of 27 (permalink) Old 03-12-2016, 08:37 AM
Moderator
 
rudeney's Avatar
 
Date registered: Dec 2004
Vehicle: CURRENT: 2011 SL550, 2010 ML350 FORMER: 2007 CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD
Location: Birmingham, AL
Posts: 18,589
Mentioned: 38 Post(s)
Quoted: 1718 Post(s)
Lifetime Premium Member
Garage
Actually, I didn't specify left or right. The TCU is always under the front passenger side footwell, which is on the left side for RHD (UK) cars, and right side for LHD (USA) cars.

--

- RODNEY


So you want to send me a private message? Please read this first:


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


My Stable:


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
rudeney is offline  
post #15 of 27 (permalink) Old 03-12-2016, 08:45 AM Thread Starter
BenzWorld Junior Member
 
Date registered: Mar 2016
Vehicle: 2003 C220 CDI
Location: UK
Posts: 11
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Send a message via Skype™ to Cass
(Thread Starter)
Once again your experience is invaluable.
Many thanks,
Regards Cass.
I'll crack a fosters in salute to you over dinner tonight. L O L
Cass is offline  
post #16 of 27 (permalink) Old 03-12-2016, 07:59 PM
BenzWorld Elite
 
Benzyle's Avatar
 
Date registered: Nov 2013
Vehicle: MY05 CLK55 AMG , MY05 CLK320,Former,C180 Kompressor,Jensen Healey,Ford Capri V6,Alfa GTV.
Location: Australia's East Coast
Posts: 1,440
Mentioned: 3 Post(s)
Quoted: 307 Post(s)
Quote:
Originally Posted by BenzBKK View Post
after reading your post.. i tried looking at the dash when i used manual mode... i mean the up and down shift mode..

i'm quite sure my car comes with the 7g gear box..

when cruising.. and i push the gear selector left..

it "drops" down to gear 6... the "D" on the dash turns into number 6..

i can keep pushing left.. and it will go down to 5..4..3..2..1... (usually a noticeable jerk when dropping to 1, even at very low speeds)..

only way to make it back to "D" again, i found is to keep toggling right until going past 6, shifts back to "D".

i figured the reason why they don't show "7" is because that is the final drive that is used for cruising speeds... and it won't make sense to go to "7" if u just wanted the car to be in fully automatic "D" mode..

i can actually shift up from 1.2.3.4.5.6.D even when just going at 20km/h...

so from what i see is.. the car will drop a gear if u toggle left... but if u keep toggling right.. it will not up shift unless the current speed allows it...

haven't tried going from D.6.5.4.3.2.1 in quick succession without slowing down too much... i worry i would blow the gear box... or will the car not allow the down shift?

anyone know? hope i explained it clearly enough...
The car will not allow a downshift if the speed is too fast. It will put strain on the transmission all the same.
It will also upshift if the engine speed is too high even when restricted.
Benzyle is offline  
post #17 of 27 (permalink) Old 03-14-2016, 10:50 AM Thread Starter
BenzWorld Junior Member
 
Date registered: Mar 2016
Vehicle: 2003 C220 CDI
Location: UK
Posts: 11
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Send a message via Skype™ to Cass
(Thread Starter)
Red face

Rudeney ! You were right again. I took up the carpet on passenger side and immediately saw some oil. By the time I stripped it all out and soaked up all the transmission fluid and got to the TCM there must have been about 1/4 litre. More like syphoning than wicking. Just got some cleaner and will clean up connectors etc tomorrow. It seems to have wicked through the wires, up to TCM, then overspilled back down the wiring loom, Thank you for your advice.
P.S. That Fosters was good
Cass is offline  
post #18 of 27 (permalink) Old 03-14-2016, 07:35 PM
Moderator
 
rudeney's Avatar
 
Date registered: Dec 2004
Vehicle: CURRENT: 2011 SL550, 2010 ML350 FORMER: 2007 CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD
Location: Birmingham, AL
Posts: 18,589
Mentioned: 38 Post(s)
Quoted: 1718 Post(s)
Lifetime Premium Member
Garage
It's a common problem. Search the forum - I think there have been some success stories on repairing this by cleaning the TCU and wiring.

--

- RODNEY


So you want to send me a private message? Please read this first:


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


My Stable:


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
rudeney is offline  
post #19 of 27 (permalink) Old 03-14-2016, 11:02 PM
BenzWorld Member
 
Date registered: Sep 2015
Vehicle: 2004/5 W203
Location: Buderim, Queensland Australia
Posts: 252
Mentioned: 0 Post(s)
Quoted: 41 Post(s)
I hope that Fosters was nice and cold Cass.

We colonials don't even drink the stuff anymore, just send on to our Imperial leaders.
Hutcho85 is offline  
post #20 of 27 (permalink) Old 03-15-2016, 12:40 PM Thread Starter
BenzWorld Junior Member
 
Date registered: Mar 2016
Vehicle: 2003 C220 CDI
Location: UK
Posts: 11
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Send a message via Skype™ to Cass
(Thread Starter)
Unhappy

L O L to the fosters !
Rudeney, I cleaned the wiring and TCU still same problem. Put the TCU back clean ne relaid carpet the took of the centre console and Disconnected the AGS which i have now apart. Now the frustrating part ! all the electronics are in a box that has small allen screws. I have down to 1.5mm n its just to big. Must be 1.25mm Ill try filing down a key but need more light to see as its so small. Ill try again thursday. I think its time for a well earned Fosters.
Regards Cass
Cass is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W203 C-Class

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum 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: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 

Title goes here

close
video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome