03 C230K coupe: This darn 722.6 transmission - Mercedes-Benz Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 31 (permalink) Old 05-26-2019, 07:59 AM Thread Starter
BenzWorld Member
 
Date registered: Nov 2012
Vehicle: 2003 Mercedes Benz c230 coupe with automatic and evolution package
Location: Toronto, canada
Posts: 63
Mentioned: 0 Post(s)
Quoted: 10 Post(s)
(Thread Starter)
03 C230K coupe: This darn 722.6 transmission

So, the transmission saga continues.

I was running up until lately (not the best, with hard shifts from 2 to 3rd gear) but now when you shift in drive it won't engage the gear, the engine just rev's. But if i turn the car off for a minute then restart the gear engages??? Opened the floor shifter and spayed with contact cleaner. Opened the TCM under the glove box and sprayed with cleaner...NOTHING...I towed it to a reputable MB independent here in Toronto, he placed it on his super duper OBD reader computer and he says the transmission needs rebuilding. $2500 bucks...Gears are slipping. Conductor plate pulls no code only a generic gear implausible/gear slipping code p25XX??

WTF can it be? This seems more electronic then mechanical to me...Any thoughts??? Can it be the transmission oil pump? When I'm lucky to get it in drive mode there is a more than usual whining sound from the trans. Then i come to a stop sign, it falls back to first gear and then the problem happens, It won't engage the gear, i shut off the car, wait a minute, restart and then it drives until i stop again...When gear is not engaged and you rev, there is no whining sound....I'm ready to take a sledge hammer to this thing :-)

help

Last edited by jamiec230; 05-26-2019 at 08:24 AM.
jamiec230 is offline  
Sponsored Links
Advertisement
 
post #2 of 31 (permalink) Old 05-26-2019, 08:21 AM
BenzWorld Elite
 
tjts1's Avatar
 
Date registered: Apr 2009
Vehicle: 87 300D 5 speed
Location: The slums of Beverly Hills
Posts: 5,150
Mentioned: 5 Post(s)
Quoted: 690 Post(s)
Quote:
Originally Posted by jamiec230 View Post
So, the transmission saga continues.

I was running up until lately (not the best, with hard shifts from 2 to 3rd gear) but now when you shift in drive it won't engage the gear, the engine just rev's. But if i turn the car off for a minute then restart the gear engages??? Opened the floor shifter and spayed with contact cleaner. Opened the TCM under the glove box and sprayed with cleaner...NOTHING...I towed it to a reputable MB independent here in Toronto, he placed it on his super duper OBD reader computer and he says the transmission needs rebuilding. $2500 bucks...Gears are slipping. Conductor plate pulls no code only a generic gear implausible/gear shifting code p25XX??

WTF can it be? This seems more electronic then mechanical to me...Any thoughts??? Can it be the transmission oil pump? When in drive mode there is a more than usual whining sound from the trans. When gear is not engaged and you rev, there is no whining sound....I'm ready to take a sledge hammer to this thing 🙂

help
Find a different mechanic. It needs a conductor plate.
Benzyle likes this.

Triggering religious fanatics since 1969

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
tjts1 is online now  
post #3 of 31 (permalink) Old 05-26-2019, 05:57 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: 18,423
Mentioned: 37 Post(s)
Quoted: 1678 Post(s)
Lifetime Premium Member
Garage
Have you checked the fluid level?
Benzyle likes this.

--

- 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 #4 of 31 (permalink) Old 05-31-2019, 12:22 PM Thread Starter
BenzWorld Member
 
Date registered: Nov 2012
Vehicle: 2003 Mercedes Benz c230 coupe with automatic and evolution package
Location: Toronto, canada
Posts: 63
Mentioned: 0 Post(s)
Quoted: 10 Post(s)
(Thread Starter)
Quote:
Originally Posted by rudeney View Post
Have you checked the fluid level?
Rudeney,

Your right, I bought the dip stick, it's low on fluid. Where did it go? I see no physical leaks on floor...
Do i specifically need the MB trans oil or can I use a Valvoline MAX LIFE ATF Dex/Merc' Mercon LV?
Also what are your thoughts on topping it up with LUCAS transmission fix?

thx jamie
jamiec230 is offline  
post #5 of 31 (permalink) Old 05-31-2019, 07:25 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: 18,423
Mentioned: 37 Post(s)
Quoted: 1678 Post(s)
Lifetime Premium Member
Garage
Check around the electrical connector on the transmission - it's a common place for leaks.

These are the approved fluids:

https://bevo.mercedes-benz.com/bevol...236.14_en.html

I would not us anything not on that list.

--

- 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 #6 of 31 (permalink) Old 05-31-2019, 09:48 PM
BenzWorld Elite
 
tjts1's Avatar
 
Date registered: Apr 2009
Vehicle: 87 300D 5 speed
Location: The slums of Beverly Hills
Posts: 5,150
Mentioned: 5 Post(s)
Quoted: 690 Post(s)
Quote:
Originally Posted by rudeney View Post
Check around the electrical connector on the transmission - it's a common place for leaks.

These are the approved fluids:

https://bevo.mercedes-benz.com/bevol...236.14_en.html

I would not us anything not on that list.
The list is wrong.

Triggering religious fanatics since 1969

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
tjts1 is online now  
post #7 of 31 (permalink) Old 06-01-2019, 05:58 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: 18,423
Mentioned: 37 Post(s)
Quoted: 1678 Post(s)
Lifetime Premium Member
Garage
Quote:
Originally Posted by tjts1 View Post
The list is wrong.

Why do you say that?

--

- 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 #8 of 31 (permalink) Old 06-01-2019, 10:43 AM Thread Starter
BenzWorld Member
 
Date registered: Nov 2012
Vehicle: 2003 Mercedes Benz c230 coupe with automatic and evolution package
Location: Toronto, canada
Posts: 63
Mentioned: 0 Post(s)
Quoted: 10 Post(s)
(Thread Starter)
Quote:
Originally Posted by rudeney View Post
Check around the electrical connector on the transmission - it's a common place for leaks.

These are the approved fluids:

https://bevo.mercedes-benz.com/bevol...236.14_en.html

I would not us anything not on that list.
Thanks Rudeney,

They have the Fuchs Titan 4134 compatible oil from your list through Amazon.ca for $21 cnd 1lt or Germanparts.ca $13 cnd 1lt

https://www.amazon.ca/Mercedes-Trans...gateway&sr=8-2

I will add some and see what happens,
thx again
Jamie :-)
jamiec230 is offline  
post #9 of 31 (permalink) Old 06-01-2019, 05:25 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: 18,423
Mentioned: 37 Post(s)
Quoted: 1678 Post(s)
Lifetime Premium Member
Garage
Just make sure you put it in the correct tube:


--

- 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 #10 of 31 (permalink) Old 06-08-2019, 10:14 AM
BenzWorld Junior Member
 
Date registered: Jun 2019
Posts: 8
Mentioned: 0 Post(s)
Quoted: 5 Post(s)
I'm having issues with my spcoupe 2002.
Bought it a few months ago , and notice the car went in limp mode from time to time, had to pull over, kill the ignition, wait few seconds, restart engine, all fine...
Had the car diagnosed, don't know error codes, but he told me i have to replace electronic plate on transmission, and also told the problem would agravate, wich it did.
I'm working in France and had no time to adress the problem back then, so kept driving hoping it would hold till august , when i'd return and fix it.
Well at the moment i'm stuck in limp, already ordered parts, filter, joint, plate, atf, etc...
Today i read about atf climbing through the wires, took a look at the TCM, and though there ARE signs of oil in the wires and conector (left), i removed TCM , opened it gently, and inside is clean and dry, which leads me to believe either the leak is not very big and o-rings on the plate conector aren't that bad, or maybe the problem was adressed in the past...
The clip in the cap where you put in the oil is also broken...
Is there a cheap diagnostic tool, that is able to erase error codes after intervention?
The transm is a 722.699, the car shows 280k.
Thank you all in advance!
Sportcoupe2002 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