2003 C240 4matic wagon transmission drops into neutral
Thread Starter
Newbie
Joined: Oct 2011
Posts: 2
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2003 C240 4matic wagon
2003 C240 4matic wagon transmission drops into neutral
Hi all,
I contacted a third party online with my issue as follows:
My 2003 C240 wagon transmission started slipping last night, then when placed in drive, acted like it was still in neutral. When I shut the car off for 5 minutes, it would go back into gear, but when slowing or stopping on an upward incline, back to neutral. Check engine light is on. 5 minutes off, allows it to go back into gear
There are four error codes displaying now.
1-P2502
2-P220A
3-P2500
4-P2221
The guy that I contacted has a strong opinion that the wiring harness has been contaminated, and the seal is bad, but my mechanic did not observe that issue.
"As I mentioned on the 5th, I'm still strongly suspecting a common problem with the main electrical connector."
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Any other opinions out there? Thanks for any help...
Jon
I contacted a third party online with my issue as follows:
My 2003 C240 wagon transmission started slipping last night, then when placed in drive, acted like it was still in neutral. When I shut the car off for 5 minutes, it would go back into gear, but when slowing or stopping on an upward incline, back to neutral. Check engine light is on. 5 minutes off, allows it to go back into gear
There are four error codes displaying now.
1-P2502
2-P220A
3-P2500
4-P2221
The guy that I contacted has a strong opinion that the wiring harness has been contaminated, and the seal is bad, but my mechanic did not observe that issue.
"As I mentioned on the 5th, I'm still strongly suspecting a common problem with the main electrical connector."
View Full Image 
View Full Image 
View Full Image 
View Full ImageAny other opinions out there? Thanks for any help...
Jon
Super Member
Joined: Dec 2010
Posts: 712
Likes: 2
From: chicago
2005 c230 kompressor 2003 s500 94 wrangler
buy a transmission dipstick to check the level or your the mechanic check
when was the last transmission drain and refill? n replaced AT plug adapter?
if past 40k miles then your transmission was most likely leaking from plug adapter and destroyed the trans computer
when was the last transmission drain and refill? n replaced AT plug adapter?
if past 40k miles then your transmission was most likely leaking from plug adapter and destroyed the trans computer
Senior Member
Joined: Jan 2010
Posts: 456
Likes: 4
From: Canada
2003 c240 4matic wagon
check your RAD you may have the valeo rad which can leak into the tranny cooler causeing coolant in your tranny VERY bad
do a search here on the rad troubles i had it happen to my car 2 years ago I stopped driving it replaced rad and did a tranny FLUSH and i got lucky all was well!
good luck!
do a search here on the rad troubles i had it happen to my car 2 years ago I stopped driving it replaced rad and did a tranny FLUSH and i got lucky all was well!
good luck!
Thread Starter
Newbie
Joined: Oct 2011
Posts: 2
Likes: 0
2003 C240 4matic wagon
Sammydragon: My mechanic did flush the system and replace the filter. Is there a way to check the transmission module?
Contact148: I will have him check the radiator brand; I had heard of this issue from a co-worker. He did say that the tranny fluid looked fine. Which would be easier to detect?...tranny fluid in the coolant or vice versa?
Contact148: I will have him check the radiator brand; I had heard of this issue from a co-worker. He did say that the tranny fluid looked fine. Which would be easier to detect?...tranny fluid in the coolant or vice versa?
Senior Member
Joined: Jan 2010
Posts: 456
Likes: 4
From: Canada
2003 c240 4matic wagon
when mine got coolant into it you could NOT see it with your eyes i sent a sample to blackstone labs and they confirmed coolant in my tranny fluid
dont drive the car till you figure it out you may cause more dammage
dont drive the car till you figure it out you may cause more dammage
