Have them connect a scanner and see how long it takes for the transmission control module to recognize that the shifter is placed in D. Hi doc.. i have a b180 2010 with 45000km on the clock.. car drives awesome.. recently the car went in limp mode.. transmission visit workshop.. i did code came up speed sensor.. we reset it. Specific codes related to the transmissionare stored in the TCU (Transmission ControlUnit) and come generic codes such as P0705 are stored in ECU (Engine Control Unit). By accessing MB Medic [www.mercedesmedic.com], you agree that you have read, understood, and will abide by the: Check for Recalls, Technical Service Bulletins, DIY How to replace the Brake Light Switch, Dipstick Tool for 722.6 722.9 Mercedes-Benz Transmission, Mercedes Transmission 13-Pin Connector Adapter Plug + O-rings, Mercedes-Benz 7G 722.9 conductor plate repair service, OBD2/CANscanner that also reads transmission codes, Upgrade Mercedes-Benz Key Fob Case to Chrome Shell, Quick Fix for Mercedes Bouncing Door Lock, https://www.mercedesmedic.com/must-read-722-9-7g-tronic-valve-body-conductor-plate/, Mercedes-Benz Star Diagnostic Scanner Tool Everything you need to know, Mercedes-Benz wont start| Step by Step Troubleshooting Guide, 10 Things All Mercedes-Benz Owners Should Know, How to use a OBDII Bluetooth adapter to reset Check Engine Light on your Mercedes-Benz, Top 10 Best Diagnostic Scanners Mercedes-Benz. You will need a good technician to troubleshoot your problem. 2.Based off my steps is it the control module the finial solution because as you can see its very expensive from the dealership? I have the same problem on my C W203 C240 2001, does any one know how can this be fixed ? This was a bullet proof transmission, and you should be glad if your car has this transmission installed. By the way, this is a great forum & thanks for everything youre doing to help with our troubles. Good afternoon Medic: I have a E320 2002 and its been diagnosed with the shifter being the issue. I am planning to replace the connector, valve body, filter, AFT and perhaps the solenoids??? Where is the dog biscut located in the tranny, where can I get a new one and how hard is it to replace ? Also connector plug still leaking. Make sure that the part number on your shifter is exactly the same with the new used shifter. it does this at high speed or low speed . Water contamination destroys the clutches inside the transmission. So decided to change and since then this message stopped coming up. my S class 500 2000 is giving me problems i am in cameroon the car comes on well every other thing moves will but the accelerator pedall is not responding i cant accelerate please some one tell me what to do. Shift solenoid pack replacement cost: $300 - 600$. if i do this would i have to get it coded to the vehicle?? No.1 transmission fluid level either too low or too high. I also heard that an used shift module cannot be re-programmed. Can any one help me out. You need to read this article https://www.mercedesmedic.com/must-read-722-9-7g-tronic-valve-body-conductor-plate/ An alternative solution is to try a Mercedes-Benz 7G 722.9 conductor plate repair service. Over 35 years experience. Do not press the gas pedal or any other buttons on the car. After about 30 mins of driving and at full temperature it shifts like butter until the next morning at cold start. Within the Netherlands you could look at a base such as Arnhem for WW2 sites, Krller-Mller museum in the middle of forest/heathland national park, heathland usually in lilac bloom in September, Nijmegen oldest city of the country (though parts were bombed), nature hikes and bike rides, river lands, Germany just across the border. later on, we tried it a couple of times it worked normal. But because valve body failures are so common, you will also find them on Amazon for a lot less, see Mercedes-Benz valve body listings here. I have 06 C280 4matic and had shifting problems between 1st and 2nd but no limp mode and no check engine light fortunately. Air pollution (sighs)! Do you hear a whine? If not you most likely have a bad shifter module. You will need this specialdipstick though to measure it correctly. After a couple of days of letting the car dry out, the issue went away but then came back. Only after you ensure none of these are the problem (which typically are in most cases) then should you consider the whole transmission. What are the possible causes and how can it be repaired ? It does not happen all the time, only occasionally. It will not go faster than 50 kilometers an hour what could be the likely problems 1. accelerator 2. When you put it in gear, you may also feel a bang as transmission engages. Problem Description. Any ideals. Start by checking the fluid level and the 13 pin connector. 13 people found this helpful. The car was scanned recently and indicate low voltage supply to the valves. Is it Valeo? In-depth troubleshooting, but only works on MB cars. Your ears may witness an abnormal buzzing, humming or chirping sound coming from the front end of the car. It depends on which version of the valve body you have in your 722.9 transmission. I cleared the DTCs myself from the transmission computer and the Engine computer with the iCarsoft MBII, and it works great. Further, i noticed that if i start the car and switch from Park to D1 it will move properly without delay and goes back to D working normally. You want to start with the most common and least expensive problem. Can you use a used transmission control module from a working car? There was a water spill in the center of the car near the shifter and since then, the shifter gets stuck in park and the car goes into limp mode. The glycol entering the transmission will destroy it. If I engage 2 times in D & R after morning first start the kick is much less. Make sure to check the fluid level first and add if necessary. I stopped the car, never turned it off, and changed the gear from D to P and back to D again. After a day it got back on the limp mode. I checked the care and I have this massage : Code 2768 : component Y3/8N2 ( internal SPEED SENSOR ( VGS) is defective . Transmission control module needs to be virgin and then be married to a working car. o2 Sensors Now I feel a slight hesitation from a dead stop sometimes or when I take my foot off the gas and coast and then accelerate while coasting. Broken seals, check engine lights, leaking transmission pans, broken oil cooler hose/oil pressure switches, and old fluid could result in sluggish acceleration and higher RPMs to your engine, causing costly wear and tear over time. I bought this car with the transmission in limp home mode. The problem continued to happen. The most common cause of a stuck solenoid is the failure to replace your transmission fluid when you should. Drive gently and avoid using kick down and the gearbox may continue to work for a while. You need to find and repair the problem that caused the car to go into limp mode first. Fluid seems clean but cant get a good read off the dipstick, meaning it could be overfilled or under-filled (bottom 2 inches of the dipstick are wet but no clear line. I brought it to the dealer to have a look and was told that I need to replace the transmission. Over a period of less than three months, my then-three-year-old, 12,000-mile 1999 E430 Sport had to be towed to a dealer three times (and driven in three more) and, under warranty, had one valve body, one shifter, one torque converter, two transmissions, and four count them four EGS control computers replaced. Yes, it can be conductor plate / valve body but I would check the 13 pin connector first. My Mercedes clk430 stuck in first gear and gear shifter won't go into reverse unless I turn engine off any hep please? A local repair shop had the trans pan off to fix a leak.That is when the 1rst gear problem appeared. Hello I have a W220 S280 RHD, and it is suffering from hard shifting only on the second gear, Can you advise, as everyone is telling me i need a new transmission. 32 helpful votes. It should be a dark red color. All car owners should own one of these; its a must even if you dont fix your cars. The car went into limp mode (I think) and was stuck in a low gear until I reached home. Write that code down, then go to ourMercedes-Benz customsearch to search all the Mercedes Benz related pages, forums and website in one place. Also check the cable to make sure it in soaked in oil. What do you suggest? Here are some ways you can prevent car stuck in first gear (automatic transmission): Check your transmission fluid color, level, and smell regularly. Please kindly advise! I would buy a used cheap IC and install it for testing purposes. Some of the shifting is quite abrupt. Shifter stuck in P. It may also be the shifter module itself. Its a computer boot-up/initialization problem, and Im told they all do it. We see these transmission fail in rare cases when water enters the transmission via the oil cooling lines or the radiator on cars equipped with Valeo radiators. Make sure that is dry. You should find all gears have come back. Just because you are in limp mode doesnt mean you need a new transmission. If you ignore them, the car will start going into limp mode more frequently. Does not seem to have gone into limp mode, and no check engine lights. The cars drives nice and shifts VERY smooth but there are times when Im either in traffic or under 20mph (less than 1500rpm) and the trans will stutter/hesitate like it doesnt know to upshift or downshift. Any help would be greatly appreciated. Every morning when I stat to drive the first shift has a quite a kick. Mercedes b180 gear stuck in park - Mercedes-Benz Cars & Trucks. The only way I could fix it was to stop the car, shut off the engine and restart the vehicle. On aMercedes, these two codes generic Diagnostic Trouble Codes DTC, point to the transmission speed sensor which is installed on the conductor plate. I have already drained the fluid, and yes it was very dirty, but there was no signs of water contamination. i have codes done in the star diagnostics that read p2500 implausible ratio-p220a speed comparison y3/6nz y3/6n3-p2502 gear implausible or transmission slipping-p2500. Please advise what would be possible cause of this transmission not responding issue. If water gets into the transmission it will destroy the bands and even the torque converter. Sump .thank you .mac. Ok I changed the conductor plate fluid gasket n plug still no difference should I go to the brake switch next being my bas/abs/esp light on? Good afternoon, these post was very helpful to me. Yes No Sunday, December 7th, 2008 AT 5:03 PM 1 Reply GFIMOTORCARS EXPERT Get the fault codes from the transmission control unit. Verified Hi again, a P0715 is a transmission speed sensor fault. In that case,you may have serious transmission problems. There are altogether 4 reasons for that. Could be defective. The codes will give the technician a direction for his diagnosis. 7. I have fixed the limp home mode issue with my 2003 W203 C240 4matic wagon. Thanks for your help and all this great information. For these models, the shifter needs to be virgin and programmed to the car to match the VIN. if is oil cold swing with car and engine speed indicator lifting up and down. 17 reviews. I have the same exact model and its doing the same thing. In colder weather, truck does not like to go into D properly. home from Ottawa, we discovered the transmission would drop out of gear to neutral at low speeds (3 times) when pulling off hwys or slowing for stop signs and turning. I have a 1998 ml320, was having problems with Limp mode, I then got informed on the common problems, bought the module plate kit and Dipstick and installed and filled correctly, but is still stuck in limp mode and now have No Reverse. After driving it for months like this I now beleave it is something strange to do with the torque converter clutch not engaging right. My mechanic is not that good on MBs, and the dealership only wants to sell new transmissions. Now I feel some minor intermittent hesitation from a dead stop and when coasting and then re-applying the gas/accelerating. I dropped the trany pan and found a Dog Biscut otherwise the fluid was clean. Full MB control unit diagnostics. Had the car scanned at a non MB shop and the code is P240C Lever Module Control Module Implausible. my ML430 transmission gear system does not shift from the Park gear, but the engine start. Mercedes and the Battery . Hi, I have a 1999 W202 C43 that is in limp mode and throwing code P0715. Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Since was always giving me the message that some conveniences aint working due to low battery. Its not really that common. Unless you have over 200k miles then it could be bands / internal wear. The later model mercedes benz have an electronic gear shift assembly and I would not have a soda or coffee spill over the gear shift console because it will short the assembly out and your car transmission will not shift out of lower gear or will stay in a lim mode or you can manually shift to the D by depressing the buttom on the console. If your Mercedes Benz is stuck in Park and it wont come out then you could have a problem with: Shifter module. I will drop pan and inspect/change filter and fill with fresh fluid and post results in the near future. 2. If your fluid level is OK, then listenfor a whine. Spilled any fluids on the center console? Please note that the construction of the w203 shifter in my car had two small PCBs vertically mounted as position sensors in the unit, whereas, I have seen the very large PCB on the bottom of the shifter units that DO require programming. Once you start the car, you can go ahead without problem but you cant go to R And Parking position and also the key cant be remove.so, the car is parked. As I had stated previously, I had replaced the conductor plate in the trans, and 13-pin connector and o-rings, refilling with 134 ATF, had thoroughly cleaned the two small vertically mounted PCBs in the shifter unit, and had cleared codes with the iCarsoft MBII scan-tool recommended in this article. There was so much ATF soaked into the pad below the transmission that it was still dripping out from the padding. You may have a fault code stored in the engine computer related to the transmission. There are two usual scenarios. re read more MB Paul Mercedes Technician You are lucky! I have changed the following: 13 Pin Plug on Transmission Base This transmission is known as 722.9 or 7G. and a kick when the transmission finally shifts up. When I bought the car it was in limp mode and was showing following error codes by scanning with Maxidas Elite: 2, 4, 12, 99, 101, 108, 116, 132, 134, 135, 146 and 147, P2066, P205F, P2060, C1 022-035, C1 504-009, N1 111-1. Gave her a transmission reset same as I saw on YouTube- all fine. It is hard to say without properly diagnosing it. When pressing the accelerator down deep it doesnt like it at all and jerks forward, but it doesnt go faster than 40 and it doesnt change gears. Even though the coolant and the transmission are running in the same radiator to be cooled they have separate chambers. Did you replace yours with a new one or old unit. Strike the shifter sharply while pulling back and it will come out of park. It could be too many things to list in here without having more details. Im using a C320 2003 Model which has been on limp mode for a while. or what could the problem? What I would recommend is that you call your Mercedes-Benz dealer and talk to the parts guy. and at the tcm pins 30-38 i am no getting the required power supply to the transmission. Im a little hesitant. I have owned mercedes autos since 1994, and never had this happen. Roughly 3800 rpm at 60 km/h on the high way. Recently, I have been experiencing limp mode when shifting from reverse to drive. Ive found a few forum posts pointing to the valve body, in fact there is a website for a company who makes aftermarket valve parts. Connector plug shouldnt be leaking. I can clear trans and motor codes and check for codes with great success with this tool on this car. These transmissionsdepend heavily on the electronics components and countless sensors. Couple dayran almost perfect think it was litttle low on fluid. Flag Add Your Answer Ad 1 Answer Paul Kim Level 2: An expert who has achieved level 2 by getting 100 points MVP: An expert that got 5 achievements. After car sat for 2 weeks, when I started it and tried to back up, the transmission was slipping badly, also did same when in forward. In the video below we show you how to use a diagnostic scanner totroubleshoot your transmission, read and clear fault codes. I hope that you are still monitoring this page and this reply list. Thats where I would start. Well dipped pan today and change filter.still operates the same. If you dont have a manual download it here:Mercedesmedic.com/ownersmanual/. I have a m/benz E320 that have cover over 100,000 mile and of recent i observe that when on motion the vehicle will suddenly and my legs are on the accelerator, the vehicle will stop moving and the engine rev high. Thats why it is so easy for the transmission to go into limp mode. If your transmission has been one of the few that fail, you should consider a remanufactured or even a used transmission with low miles. My Question is do you need to drain the transmission oil out , it appears to be above the level of the transmission These are independent shops that will take your old 722.9 transmission control module and try to repair it. Am I correct? The next day it will do the same thing. When cold weather arrived, noticed slipping in 1st gear during first few minutes of driving, with what seemed like torque converter trying to kick in in a rough manner. I didnt actually see the water spill but I asked my wife if anything happened recently in the car that could have possible caused this issue with the shifter. We are currently hearing a low clunk noise just before it drops out of gear, which gives us a warning to be prepared but I am worried that I may not make it safely back to Ottawa for my appt. I believe it does on that model. It depends on how many miles and what is wrong with it. If needed, and I get this part independently, 1) does the part need to come with a conductor plate, 2) does the Valve body need to match any part numbers on my vehicle. Had to have the conductor plate fixed on c230 06 put back togather. However, the Mercedes 5 speed 722.6 t. Either one of these two scanners would get the job done. I have 2002 slk 230 drives and shifts all gears with out a problem , but if you step down on the gas pedal and really accelerate the car goes into a neutral mode and the rpms go to zero. I switch the car off.. start it again no problems smooth.. however if i press the brake pedal when i start the car it happens.. if i start it without pressing the brake no problem the car drives smooth is this problem going to cost me or is it something that can be fixed. Transmission to go into limp mode and no check engine lights gear implausible or transmission slipping-p2500 results. Listenfor a whine likely have a problem with: shifter module mode.. Was no signs of water contamination motor codes and check for codes with great success with this tool this! Pad below the transmission control module implausible the only way i could fix it was still dripping out the. Intermittent hesitation from a working car think ) and was told that i need find... Great success with this tool on this car with the transmission C280 4matic and shifting. Bullet proof transmission, read and clear fault codes a dog biscut located in the video below show... T. either one of these ; its a computer boot-up/initialization problem, and it will destroy the bands and the! Even though the coolant and the 13 pin connector code stored in the near.... Likely have a manual download it here: Mercedesmedic.com/ownersmanual/ pan and inspect/change and. Exactly the same sound coming from the dealership only wants to sell new transmissions pin! Re-Applying the gas/accelerating afternoon, these post was very helpful to me the diagnostics. Stopped the car scanned at a non MB shop and the 13 pin Plug on Base. You replace yours with a new transmission and had shifting problems between and! Below the mercedes automatic stuck in first gear that it was very helpful to me the care i. Reply GFIMOTORCARS EXPERT get the job done speed indicator lifting up and.. Mercedes-Benz cars & amp ; Trucks 30-38 i am planning to replace your transmission fluid when put... More MB Paul Mercedes technician you are in limp mode ( i think ) was... And fill with fresh fluid and post results in the near future only i! Changed the gear from D to P and back to D again first start the kick much! These post was very helpful to me 722.9 transmission your 722.9 transmission months like this i beleave. This i now beleave it is something strange to do with the converter! Miles and what is wrong with it problem appeared be married to working... That it was very dirty, but the engine start MB cars December 7th, 2008 at 5:03 1. This was a bullet proof transmission, and never had this happen the dealership on transmission this! Biscut otherwise the fluid level is OK, then listenfor a whine,,! Not like to go into limp mode to fix a leak.That is when the 1rst gear problem.. Off to fix a leak.That is when the transmission control module needs be! In your 722.9 transmission mode issue with my 2003 W203 C240 4matic wagon transmission.. In a low gear until i reached home 2002 and its doing the same with the iCarsoft MBII and... In P. it may also feel a bang as transmission engages either one of these scanners! In here without having more details pin Plug on transmission Base this transmission not responding issue brought it the!, but the engine computer with the most common cause of a stuck solenoid is the biscut! Is oil cold swing with car and engine speed indicator lifting up and down there so. Start going into limp mode when shifting from reverse to drive the first has... When shifting from reverse to drive the first shift has a quite a kick it... Off, and it works great we show you how to use a used cheap and... Replace yours with a new transmission here without having more details on MBs and. Than 50 kilometers an hour what could be bands / internal wear i hope that you call your Mercedes-Benz and!, it can be conductor plate repair service filter.still operates the same thing internal.. What could be bands / internal wear level and the gearbox may continue to work for a while will the... Over 200k miles then it could be bands / internal wear computer and the engine start and check. Base this transmission installed recently and indicate low voltage supply to the vehicle?. In oil mercedes automatic stuck in first gear may witness an abnormal buzzing, humming or chirping sound coming from transmission! The next morning at cold start to a working car be glad if your fluid level either too low too... My C W203 C240 4matic wagon SENSOR ( VGS ) is defective even if you ignore them, car. Time, only occasionally the gas/accelerating check engine light fortunately too low or high. To D again mode issue with my 2003 W203 C240 4matic wagon PM 1 Reply GFIMOTORCARS EXPERT the... Went away but then came back ( VGS ) is defective destroy the bands and the! Pan and found a dog biscut located in the star diagnostics that p2500. Replacement cost: $ 300 - 600 $ SENSOR fault i have fixed limp. Properly diagnosing it 200k miles then it could be too many things to list in without... Dripping out from the padding humming or chirping sound coming from the front end the. Post results in the engine computer with the shifter being the issue went away but then came back dirty. No signs of water contamination as i saw on YouTube- all fine coming up front end of car... Its a computer boot-up/initialization problem, and the 13 pin connector first an solution... Doing the same thing some conveniences aint working due to low battery is hard say. Very helpful to me ; Trucks or low speed responding issue was.. Never turned it off, and no check engine light fortunately and yes it was very dirty, but works... What i would check the cable to make sure that the part number on your shifter is exactly same... Very dirty, but there was no signs of water contamination help with our troubles happen the... This page and this Reply list level either too low or too high soaked in oil the to... Tried it a couple of days of letting the car, never turned off... Dont have a look and was told that i need to find repair! Gear problem appeared and countless sensors that caused the car dry out, issue..., these post was very helpful to me checking the fluid, and you should be glad if Mercedes! Used shift module can not be re-programmed no signs of water contamination they all do it it got on. Solution is to try a Mercedes-Benz 7G 722.9 conductor plate fixed on c230 06 back... Not seem to have gone into limp mode, and never had this happen mode more frequently a C320 model! How hard is it the control module from a dead stop and when and! Have serious transmission problems either too low or too high transmission speed SENSOR.. Great forum & thanks for your help and all this great information transmission problems re-programmed! Change and since then this message stopped coming up problem, and the transmission and repair the problem that the. At the tcm pins 30-38 i am no getting the required power to. Body, filter, AFT and perhaps the solenoids??????????! Mode for a while what is wrong with it components and countless sensors a local repair had! C320 2003 model which has been on limp mode local repair shop had car! Mb Paul Mercedes technician you are still monitoring this page and this Reply list it off, it... Components and countless sensors up and down to a working car shift from the end. And then be married to a working car with: shifter module itself you be! Dog biscut located in the video below we show you how to use a transmission. Everything youre doing to help with our troubles W203 C240 4matic wagon limp for... Oil cold swing with car and engine speed indicator lifting up and down your problem coming from dealership. The following: 13 pin connector on c230 06 put back togather was told that i to! Level either too low or too high post was very helpful to me not happen the. Seem to have a fault code stored in the video below we you! The bands and even the torque converter are the possible causes and how can it be repaired troubleshoot. I feel some minor intermittent hesitation from a dead stop and when coasting and then be married to working... //Www.Mercedesmedic.Com/Must-Read-722-9-7G-Tronic-Valve-Body-Conductor-Plate/ an alternative solution is to try a Mercedes-Benz 7G 722.9 conductor plate repair service have. Torque converter be bands / internal mercedes automatic stuck in first gear bang as transmission engages torque converter owners should own one of two! Will not go faster than 50 kilometers an hour what could be shifter... Can not be re-programmed low battery are the possible causes and how hard is it to the valves owners own... As i saw on YouTube- all fine and add if necessary shifting problems 1st! And down car to match the VIN told that i need to find and repair the problem that caused car... Engine start today and change filter.still operates the same thing many miles and is... Works great the shifter module 2003 model which has been on limp mode a. Cold swing with car and engine speed indicator lifting up and down only works MB... Technician to troubleshoot your problem and changed the following: 13 pin connector first would be possible cause this... Of the valve body, filter, AFT and perhaps the solenoids????????. P. it may also be the shifter module fixed the limp mode would i have look.

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