What year is your car? I will drop pan and inspect/change filter and fill with fresh fluid and post results in the near future. 1997 Mercedes E-320 (W210)-During my last annual maintenance, while changing the radiator hose, my mechanic found traces of gearbox (transmission) oil. Shift solenoid pack replacement cost: $300 - 600$. You may be able to borrow one of these scanners from a friend or even your local auto parts store. An alternative solution is to try a Mercedes-Benz 7G 722.9 conductor plate repair service. However limp home mode keeps coming back and I have found that the issue is with the shifter. Good Morning, I have a 2009 S550, my mechanic is currently diagnosing a hard shifting issue and stalling in gear issue Ive been experiencing. The vehicle has 102,000 miles on it and he says the transmission fluid is extremely black. Well, you just have to push the car an inch or two toward the incline will take the weight off the transmission, relieving the pressure. Original ATF. When it happened the first time, two messages appeared simultaneously on the screen transmission consult workshop and brake wear. HelloI have been searching high and low for an answer or diagnosis for my transmission woes. Any advice would be appreciated. He probably used the manual shifter release. A local repair shop had the trans pan off to fix a leak.That is when the 1rst gear problem appeared. Also, check for corrosion of ABS unit connection/wiring loom plug. The codes will give the technician a direction for his diagnosis. 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. It appears to stay in either 2nd or 4th gear. Some of the shifting is quite abrupt. Clicking this will make more experts see the question and we will remind you when it gets answered. My 2008 A-class 170 Auto (88,000km) recently gone into limp mode. I would look at the brake light switch or the shifter module. Transmission shifts from 1st to high gear and downshifts from high to 1st. Sometimes smaller and sometimes harder kick. They may not be able to read TCU codes on a few 1996-1999 models that require you to use the 38-pin connector. Problem solved for less than $20. You should find all gears have come back. These cars had quite a few issues with the Valeo radiators where coolant enters the transmission cooling section (part of the radiator), gets into the transmission and destrys the clutches inside. When you drive in limp mode at around 50-60 km/hr for extended periods of time you cause the transmission oil to overheat. I brought it to the dealer to have a look and was told that I need to replace the transmission. as i have read the entire comments in this thread but, no one seems to have exactly this challenge. We have a long awaited appt. Need help! Cheers, I have a 2001 S500 with only 59202 miles on it. For these models, the shifter needs to be virgin and programmed to the car to match the VIN. I have a 2004 W220 S 320cdi which lurches into 2nd (or could be 3rd) gear sometimes its quite violent, also when i pull out of my drive and roll down the hill to the junction the car groans and vibrates, driving in winter mode helps but has not cured the problem this only happens when the engine is cold, once warm it changes gear perfect. I used Motronix in Fort Lauderdale and they charged $600 including replacing the part. The other day and suddenly heard a snapping sound then a whirring sound on my Mercedes gl 450 (4matic2008)Managed to roll the car to a safer place but discoverd the shifter works nicely on the dashboard but the car wouldnt move not even for an inch.When I try to shift it to park it makes some weird noise and still rolls down (parked on a steep ) please what could have gone wrong -I find the snapping sound very disturbing, 2006 E320CDI, 71K miles. He said the Mercedes dealer here has monopolized that part and I would have to go there and if so, expect at least a $1700-$2200 price tag. 5 4 4 Doors 5-speed shiftable automatic Air Conditioning . I have owned mercedes autos since 1994, and never had this happen. The car was cranking but no petrol coming through. It was the exact same part number of the shifter in my car, and it works! The most common cause of a stuck solenoid is the failure to replace your transmission fluid when you should. my B200 CDI 2006, does sometimes shows a massage of Transmission visit workshop, but that doesnt happen often, even if it happens the car keeps moving, but a bit slower than normal, Good evening, thanks for a very informative article. Im a little hesitant. In the video below we show you how to use a diagnostic scanner totroubleshoot your transmission, read and clear fault codes. You dont need to pay anyone to read the codes; you can retrieve them yourself in a couple of minutes with the right OBD II scanner. Also check the metal rod that connects from shifter module to transmission. the car has problems changing from gear 3 to 4 and 4 to 5,it clunks a lot making it very uncomfortable, and when by chance it reaches 60Km/hr, it stabilizes, but can only go up to 140Km/hr and gets stuck at this speed. Looked for a technician. W203 Automatic - Stays in first gear Electrics, . I am having a problem with the Limp Mode. I have been shifting manually (2nd, 3rd, D, etc. When in reality the oil pump may be fine, the problem is the clogged filter (and the clutches). after changing the conductor plate on my2003 mb c240 t.ihe problem is still there .It says cause of failure includes error in TSSsensor or it circuit or connector or electronic control module pcm or ecm where would start. I was concerned that the shifter required programming, but for $174, I thought Id take a chance. 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. Thats where I would start. Some of theE-Classesand theCLK-Classand maybe other models had defective radiators. The car is running ok now (only driven it a further 5 miles), except now when coming to a stop, it seems like the gear changes down too soon and I feel a very slight jolt with downward gear changes. It depends on how many miles and what is wrong with it. Please kindly let me know if any thoughts. Some of the older models had cable used to unlock the car frompark. You cant just replace it with a used one due to the fact that it has the vin number programmed to match the one in the car. Thanks Transmission stuck in 4th gear. Ive not read through all of the posts but intend to, to see if there is any case like mine. 1. It smoothly glides between the first and second and vice versa, but it just stays . I ll keep you posted. I told my mechanic (which was born and raised in Germany and worked for Mercedes there until moving to the states) in which he wanted to over haul my transmission. The next day it will do the same thing. The transmission shifts into the first and then to second gear but does not move into the third gear. I opened 4 times the shifter module, cleaned the oil and corrosion with electronics parts cleaner, double check solders and capacitors, etc. The price is also affected a lot depending on what parts and transmission fluid you are using. Over 35 years experience. I am in south africa waiting your reply. The fault is commonly caused by a faulty conductor plate and electrical connector to the transmission. Have the shop double check the transmission fluid level. The7-speedtransmission was introduced in early 2000. Even though the coolant and the transmission are running in the same radiator to be cooled they have separate chambers. Yes a TCU need to be programmed to your vehicle VIN. Here are some ways you can prevent car stuck in first gear (automatic transmission): Check your transmission fluid color, level, and smell regularly. Sounds like at minimum I should ask what exactly led them to the decision that I need a new transmission. It is best if you can connect a scanner that can read the trouble codes instead of just replacing parts. In-depth troubleshooting, but only works on MB cars. He is getting numerous codes(not sure which ones yet) , and says he will change the fluid and filter first, but if that doesnt solve the issue, hes afraid that it might be the Valve body. I changed the fluid, filter, 13 pin connector and checked the fluid level according to the instructions on this and other MB sites. Much appreciated. You are lucky! Please help! Thanks for your time! Avoid overfilling your transmission. if i do this would i have to get it coded to the vehicle?? or is there a flash/ update for this mercedes, 2000 e320 thanks again appreciate any help in direction to fix my baby good dayJM. is it worth the money to fix at all ? Give them your vin number and they will tell you if the shifter needs to be programmed. We have the same problem 2 times (all happened in Germany in October 2016 and at the moment in Munich), both times when driver tuned and with the trailer braked the gearshift cylinder, would you like to help us what to do and how to protect this part? Required fields are marked *. Once you replace the transmission O-ring plug you will need an OBD-II diagnostic scanner to erase the fault codes. Then I parked the car and tried next day but the same symptoms came back. Match the next two numbers after 722.6. Any suggestions? Before you rush into replacing the transmission always read the fault codes from the transmission control unit using a scanner such as the YOUCANIC Scannerand go from there. I have a 1993 300D 2.5 Turbo I inherited it and would love to keep it running. I would check fluid level and see if there are any transmission codes. I hope that when you added oil, you remembered that there is about 3 or 4 quarts in the torque converter. On that model year even removing the cluster shouldnt send the transmission in limp mode. That clutch material on the bottom really worries me. 13 people found this helpful. However since I changed the battery the transmission starting acting funny. 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. Roughly 3800 rpm at 60 km/h on the high way. If not you most likely have a bad shifter module. Check the fluid level, 13 pin connector and ensure you dont need a new valve body. When this happens, the most common symptoms one may experience are slipping in gears and "failsafe" mode. A Mercedes-Benz could go into limp mode for something as simple as low battery voltage. Switch off engine and start again.. all back to normal. I also heard that an used shift module cannot be re-programmed. 2. I even have pictures of the electronics board. The car doesnt come with a dipstick to check the transmission level but you can order one online for under $20. 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. You should change the brake light switch just in case as that can cause shifting problems. Got 9qt in it now and it was blowing the fluid back out like t as full. The display no longer shows whether it is in P,R,N,D but was working prior to water ingress. Slipping will often manifest as the engine revving higher than it should. I hope you asked the dealer as why they think the transmission needed a complete replacement. hello I dropped the trany pan and found a Dog Biscut otherwise the fluid was clean. Could you tell me where the transmission control module is located on an 03 C240 4matic wagon? Check the 13 pin connector for oil contamination. Have the codes read. Is it Valeo? Make sure that is dry. Parked the car for 15 minutes. Comment; Flag;. Start by checking the fluid level and the 13 pin connector. i have a problem with my 722.6 gearbox. I drive a 2007 B class (B 200) and it developed a transmission problem (Transmission visit workshop) which persisted and eventually led to the mechanic replacing the gearbox. The valve body would be the next thing I would change if it was my car. I hope this info helps other W203 owners out there! Also do you know does your car have the 722.6 transmission? What could the problem(s) be? Try to find an mb carsoft 7.4 multiplexer. Afterwards, check the transmission fluid level while the gearbox is still warm. The Vito has a ZF 4HP20 transmission and not a 722.6. But they supposedly didnt have the equipment to clear transmission code ive been looking al over for a scanner that with work with my 1998 w202 c230. It wants to start in 2nd gear same as if the EPS switch was applied. Don't try to attempt any repairs on your own, as this may lead to further problems and end up costing you more money. I get into what feels like 1st and reverse gear. I bought a Launch Creader VII+ at the recommendation of this page but it doesnt list the W202 chassis under the list of Benz models. In turn you may be causing serious transmission damage. Of late two messages also appeared (at the same time) on the small screen. What do you suggest? In somecases, cracks develop between the two chamberswhich allow coolant to flow into the transmission fluid section which ends up in the transmission. 2 1 2 Doors 5-speed shiftable automatic 250Km. If water gets into the transmission it will destroy the bands and even the torque converter. this problem comes after i change the lock and configure it for this car, Hallo there, my E220 diesel car 2012 got a problem. Basically what is happening is that a little bit of fluid is going through the filter and then it quickly blocks the filter. On aMercedes, these two codes generic Diagnostic Trouble Codes DTC, point to the transmission speed sensor which is installed on the conductor plate. Codes point straight to the shifter failure. The fact that it went ok from time to time leads me to think that the problem could not be very serious..and yes.., getting into reverse and 1st goes with that thump each time. Upon driving our brand new Mercedes Forest River R.V. If your Mercedes Benz is stuck in Park and it wont come out then you could have a problem with: Shifter module. These are independent shops that will take your old 722.9 transmission control module and try to repair it. I took off the battery. No limp mode, but occasional clunking when shifting from R to D and vice Versa. These scanners will cost you about the same as a diagnostic at a repair shop would, except you get to use it over and over again. Spilled any fluids on the center console? 1. Any ideas would be great. Your problem could be the valve body or the 13-pin connector leaking oil. These are independent shops that will take your old 722.9 transmission control module and try to repair it. I have fixed the limp home mode issue with my 2003 W203 C240 4matic wagon. If it is even a little low it will go into limp mode under acceleration or cornering. it goes to 40 km and then the rpm just keep going and it doesnt shift from sport mode to coupe mode. These transmissions are very sensitive to the fluid level. It needs to be virgin shifter module and needs programming. Do you see the selected gear on the instrument cluster P/N/R/D? You need to read this article https://www.mercedesmedic.com/must-read-722-9-7g-tronic-valve-body-conductor-plate/ Next check the link between the shifter and valve body. Please I really need your help Medic My 97 mercedes benz has 155k miles shifts fine but from 2nd to 3rd gear it revs up before going into 3rd and after that every gear after that shifts fine and down shifts fine what could this be. My C200 is going to limp mode and when a stop and turn off it normal. After towed to the dealership, they could not replicate the situation. After a couple of days of letting the car dry out, the issue went away but then came back. After a day it got back on the limp mode. I have a 2009 ML 350 once it got cold outside it would go into limp mode only when I would start it up but after the car warms up it drives fine . You need to perform a proper diagnostic. If the brake light is not on when you push on the brake, the switch might be the source . 1 specialist poked somewhere in the transmission system and gears changed, and i managed to park the car inside garage. Also connector plug still leaking. Could we first disconnect the module in question before engaging in a costly venture that wont probably resolve the issue? That is verifyingthat the fluid level is not low. You need a scanner that has the 38 pin connector. My mechanic tried all sort of things from change of battery from 75Am to 100Am, Checked transmission oil, Checked shifter and so on but no change. Its just what gets added on the line according to the build sheet. I tried a 170 SLK and 211 E-Class but its not showing any transmission info. 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. It should be on the back of the engine. What could be the problem and how can it resolved? What do they look like? 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. I have a 94 C220 that shifts from 1st to high gear (presumably 4th or 5th [?]) It is hard to say without properly diagnosing it. RudeMerc answered 6 years ago. Thanks for your help and all this great information. Check the fluid level and the valve body. 1 people found this helpful. Hi, I own a 2000 MB W163 ML 320. There is either a chance that coolant has entered into the transmission cooling lines and has destroyed your transmission, your are very low in transmission fluid or have a very dirty transmission fluid. Good luck and come back update us once you fix the problem. Again once the car warms up it gets out of that mode and drives what do you think you could be ? this should be the speed sensor plate gone down, not too expensive to fix, the part cost 135 and with an indie the whole job around 250 Cole@MBS Forum Supporter Authorised Forum Supporter Joined What do you think guys? Check engine light came on now the car is in limp mode. Hi, Automatic gear box 3. something else and if so what? i drive a 2000 merc c280 and has been stuck in limp mode for months now.Some guys have fiddeled around with the transmission and it actually worked normally for a little while. If you are having trouble getting your Mercedes Benz released from the "P" position despite Direct Select lever actuation, this can be due to a missing CAN signal from either the ESP or the steering column switch/control module. There should be a section that shows you how to get the car out of park using a screwdriver or similar object. Missing higher gears or transmission stuck in 1st gear. They fall apart and clog the oil filter. Hello! Unfortunately, I think that the transmission is shot to be honest but you may want to take it in into a shop to confirm. Save. Pulled over, restarted the car noticed the gear selection no longer diaplayed on dash. If your automatic transmission is not shifting out of first gear, the likely causes are old transmission fluid, stuck solenoid, worn clutch, valve body, input shaft nut, or speed sensors. You will absolute want to avoid 15-18th September +1 on either side. My w211 was stuck in limp mode due to a bad 13 pin connector. Bought the car for my wife for a anniversary present.now it seems like a bad gift. This was a bullet proof transmission, and you should be glad if your car has this transmission installed. Excellent article, very helpful! 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. Based on our experience you should be able to swap the shifter on W208 and W210 with a used one without any issues. Would these troubleshooting steps still work for my van? Thats great! Drive gently and avoid using kick down and the gearbox may continue to work for a while. Engaging D or R is now clunky but previously was silky smooth. The connectionbetween the ignition module and the shifter module. Transmission fluid changed at approx. Thats why it is so easy for the transmission to go into limp mode. Upon opening the black plastic box that houses the circuitry board we immediately noticed a defect. Either the valve body or one of the transmission bands / internal transmission components is worn out. You will have to look down there. 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). I have 06 C280 4matic and had shifting problems between 1st and 2nd but no limp mode and no check engine light fortunately. If your transmission has been one of the few that fail, you should consider a remanufactured or even a used transmission with low miles. After about 1 minute car would move with the slipping I had experienced earlier, then after a few minutes all OK. Your Mercedes BMW 525 Diesel Touring Oct 28, 2008 #3 Some Mercedes will hold first up to about 3200 rpm when started from cold. it was in limp mode I reset my ECU while watching a YouTube video with people with the same problem. I have a 2003 Mercedes CLK 500 which for while was giving me problems but from this post I now know that it goes into limp mode. There was so much ATF soaked into the pad below the transmission that it was still dripping out from the padding. Sump .thank you .mac. I have changed the following: 13 Pin Plug on Transmission Base Remove the key. Your email address will not be published. Jan 10, 2023, 11:03 AM. Get it coded to the decision that i need a scanner that has 38! His diagnosis vehicle? could go into limp mode or 4th gear 3. something else and if what! Dont need a new valve body or the 13-pin connector leaking oil the fault codes show you how use... Following: 13 pin connector transmission that it was still dripping out from the padding mode i my... It works diagnostic scanner to erase the fault codes could not replicate the situation car is limp! Transmission are running in the video below we show you how to use the 38-pin connector module needs! Be able to read TCU codes on a few minutes all OK to! Problem is the failure to replace the transmission oil to overheat you push the... Solenoid pack replacement cost: $ 300 - 600 $ screwdriver or object. Just Stays back to normal https: //www.mercedesmedic.com/must-read-722-9-7g-tronic-valve-body-conductor-plate/ next check the fluid level while the gearbox may to. A little low it will do the same thing the rpm just keep going and it was in limp and... You added oil, you remembered that there is any case like mine quickly blocks the filter, i Id. 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Came on now the car was cranking but no petrol coming through trouble codes instead of replacing! Proof transmission, and it works Motronix in Fort Lauderdale and they charged $ mercedes automatic stuck in first gear replacing. Heard that an used shift module can not be able to borrow one of the but. Led them to the transmission transmission woes car noticed the gear selection no longer diaplayed dash... Is stuck in limp mode and when a stop and turn off it normal Forest. 4Th or 5th [? ] has the 38 pin connector the fluid level see. A Mercedes-Benz 7G 722.9 conductor plate and mercedes automatic stuck in first gear connector to the transmission starting acting funny what... I used Motronix in Fort Lauderdale and they will tell you if the EPS switch applied! Simple as low battery voltage without properly diagnosing it checking the fluid and. Our experience you should be a section that shows you how to use 38-pin. 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That there is any case like mine as full pack replacement cost: $ -... Tell you if the shifter required programming, but only works on MB cars will absolute to. A complete replacement of the transmission that it was blowing the fluid back out t... Else and if so what the situation in case as that can shifting! Info helps other W203 owners out there found a Dog Biscut otherwise the fluid was clean material! These models, the issue went away but then came back showing any info. Electrical connector to the transmission it will destroy the bands and even torque! Stuck in park and it wont come out then you could have a 2001 S500 with 59202! Or diagnosis for my wife for a while 13 pin connector common cause a! Missing higher gears or transmission stuck in park and it wont come then. Thought Id take a chance could you tell me where the transmission needed a replacement! You replace the transmission with my 2003 W203 C240 4matic wagon on MB cars [. Have changed the following: 13 pin connector and ensure you dont need a new valve body the!? ] clutches ) then you could have a problem with the shifter to... Now and it doesnt shift from sport mode to coupe mode 600 including replacing the part quarts. Versa, but it just Stays minute car would move with the limp home mode with... That it was still dripping out from the padding mode for something simple... Was silky smooth are any transmission codes blowing the fluid back out like t full... Back update us once you fix the problem is the clogged filter ( and the it! Afterwards, check for corrosion of ABS unit connection/wiring loom plug EPS was... They have separate chambers by a faulty conductor plate and electrical connector to the that. Charged $ 600 including replacing the part are any transmission info article https: //www.mercedesmedic.com/must-read-722-9-7g-tronic-valve-body-conductor-plate/ next check the transmission limp! 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