Tech help Trans Code p0730!!!
I am getting a P0730 Code on my OBD-II Scanner and the car acts like its in limp mode. No forward or reverse gears most of the time and sometimes if I restart it it will work shortly.... Any suggections?
Thanks! |
Originally Posted by imcc
(Post 3171678)
I am getting a P0730 Code on my OBD-II Scanner and the car acts like its in limp mode. No forward or reverse gears most of the time and sometimes if I restart it it will work shortly.... Any suggections?
Thanks! Here's from WIS: Complaint: Target gear is not reached, transmission in mechanical/hydraulic limp-home modeFault code: 055 I5I P0 730 Possible cause / Remedy
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Just got the car it was an off lease car I am sure the battery went dead multiple times before it was changed to a new battery i see clear evidence of that, could that have anyting to do with it? I have not checked the wiring to the trans or the o ring. I was planning on doing the trans service tomorrow but in light of this happening I don't want to do it until I figure out the issue. Thanks!
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Originally Posted by imcc
(Post 3172162)
Just got the car it was an off lease car I am sure the battery went dead multiple times before it was changed to a new battery i see clear evidence of that, could that have anyting to do with it? I have not checked the wiring to the trans or the o ring. I was planning on doing the trans service tomorrow but in light of this happening I don't want to do it until I figure out the issue. Thanks!
That would be one of the first things I would do. When you get under there, you'll be in a better position for a diagnosis. The biggest thing is to check for evidence of leaks. Good luck:y |
Thanks appreciate it! The harness Plug adapter o ring for the harness I assume is inside the trans and should be obvious when I change the filter / fluid? Also for good measure should I just replace the shift pressure control solenoid valve? They appear to be like $23.00 From worldpac?
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Thank you for all the Help CL500! Unplugged the Trans harness connector and out came trans fluid!!! Ordered a new Grommet / O ring and doing a trans service now and I will let you know!!! Bingo you hit it on the head I think!!! Thanks again and I will keep you all Posted!
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Originally Posted by imcc
(Post 3172640)
Thank you for all the Help CL500! Unplugged the Trans harness connector and out came trans fluid!!! Ordered a new Grommet / O ring and doing a trans service now and I will let you know!!! Bingo you hit it on the head I think!!! Thanks again and I will keep you all Posted!
NP man. I was gonna say to check the plug for fluid before doing anything with the solenoid valve, but it looks like you may have found the problem already. Make sure you clean the electronic connector well. Here's a good reference for you with pictures courtesy of mleskovar and sunman. It's on a C-Class, but it's a 722.6 trans. http://www.installuniversity.com/mb/...ans_oring.html Let us know how it goes. |
Thanks for the info! Imissed the 7 mm captive socket bolt and broke the electronics board which I replaced today, Oh well, anyway now since I installed a new electronics board I must have it re recognized by the ecu which means a trip to the stealer... But hopefully all will be well. Thanks again and I will let you know the outcome!:bow:
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Originally Posted by imcc
(Post 3173992)
Thanks for the info! Imissed the 7 mm captive socket bolt and broke the electronics board which I replaced today, Oh well, anyway now since I installed a new electronics board I must have it re recognized by the ecu which means a trip to the stealer... But hopefully all will be well. Thanks again and I will let you know the outcome!:bow:
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Well still issues doesn't appear the electronics board needed coded, Trans pressure seems ok, but stuck in basically neutral now. After new electronics kit and harness orings, basically I went from ocasionally having trans to nothing other than park and neutral... Any ideas? Thanks!
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Originally Posted by imcc
(Post 3176851)
Well still issues doesn't appear the electronics board needed coded, Trans pressure seems ok, but stuck in basically neutral now. After new electronics kit and harness orings, basically I went from ocasionally having trans to nothing other than park and neutral... Any ideas? Thanks!
At this point, I would get the car hooked up to Star Diagnostics and verify codes in the tranny. It would be worth the $$ as you did all you can do. The code you received is only OBD, not the hidden Benz codes. My first post above lists some possibilities. Now you have to pin point exactly where the problem is. Get it hooked up to star and hang in there. Good luck!:y |
I replaced the whole valve body. Based on star diagnostics pressure solenoids not responding... Trans worked great for 50 miles and went out 2 miles from my house luckily not further on the way down to Florida where I am now. I am having a flat bed pick it up and tow it to the dealer. I am guessing either it went out again which would be weird but possible or there is another issue making it act identically...
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that code is usually THE MASS AIR FLOW SENSOR
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Can anybody else attest to this p0730 being related to the maf? Seems completely unrelated in my opinion
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Bump, any update? im experiencing the same issues... did you solved it?
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Enrikerace, watch all 6 of this guy's videos. They are very good and may explain your problem.
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Similar problem.......
On my 1998 E320, I had a retired MB mechanic replace my conductor plate, filter, and electrical connector with the o-rings after cleaning my shifter module didn't get it out of limp mode. Now, the "incorrect gear ratio" code is popping up. Any ideas from the MB buffs/experts here? |
Originally Posted by enrikerace
(Post 6474984)
Bump, any update? im experiencing the same issues... did you solved it?
Thanks! Bummed... |
Originally Posted by imcc
(Post 3171678)
I am getting a P0730 Code on my OBD-II Scanner and the car acts like its in limp mode. No forward or reverse gears most of the time and sometimes if I restart it it will work shortly.... Any suggections?
Thanks! the most common issue is there's an electrical connector that leaks and let's fluid up into the tcu causing these issues see the first video here https://mbworld.org/forums/s-class-w220/608957-w220-how-repair-videos.html |
Originally Posted by Rick_in_Denver
(Post 6933969)
I have a "new to me" 2007 S550 4matic that is showing the same code (according to an auto parts store) and is slipping intermittently (step on gas... vroom, no go, then slow go... other times, go go go). Anyone else fix this? It is also showing a P0717 Turbine/Input Shaft Speed Sensor Circuit No Signal code.
Thanks! Bummed... |
Originally Posted by Rick_in_Denver
(Post 6935672)
Dealer is saying it is a $1,500 transmission plate...:mad:
a dealer will overprice everything |
P0705, 0715 & 0730 codes
Had these codes on 2004 E320 had the Star verify and recommended replacing Conductor plate and filter. While they had it out I went ahead and replaced the solenoids. After all parts replaced car runs fine with new fluid. The conductor plate came with the plugs everything done for under $500 parts and labor.
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Help
Originally Posted by iamrclose
(Post 7414471)
Had these codes on 2004 E320 had the Star verify and recommended replacing Conductor plate and filter. While they had it out I went ahead and replaced the solenoids. After all parts replaced car runs fine with new fluid. The conductor plate came with the plugs everything done for under $500 parts and labor.
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Originally Posted by FlyHigh985
(Post 7415738)
Did you buy oem part or aftermarket i replaced my conductor plate and filter it didn't help they were after marker car still did the same thing. I'm wondering should i buy a oem conductor plate or just some new solenoids please help
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My parts came from Ebay so not everything was OEM but compatible. The solenoids were remanufactured OEM. I went ahead and replaced the solenoids since they are ob the conductor plate. What codes were are you getting? I'm not sure if I can post the link but will try. Prior to replacing these parts, I had replaced the shifter as it will throw codes as well. I am a DYI as long as it not under the car (safety first) so did a lot of the work myself.
Transmission Conductor Plate+Connector+Filter+Gasket KIT FOR Mercedes Benz 722.6 6pcs OEM 722.6 Solenoids Set for Mercedes Benz 5-SPEED Automatic Transmission |
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