W202 1998 C280 Transmission problem - Please Help

Hi all.=20
let me say that the forum is very good.I apologize for the bad English that= I have, because it is not my original language.This is my first post here = in the forum.I have a MB W202 C280 Sport USA version M112 engine . a few we= eks I have it stopped by a strange problem in the transmission.=A0
Let me tell you to see if anyone can give me an idea of what might be.Few w= eeks ago the car did not perform the shifting and had a strange humming noi= se, but that happened only once. We took it to the mechanic and said it was= an electrical problem and had cleaned the sensors and it works (do not kno= w what sensors) . They also suggested we perform the change of the transmis= sion oil.We made the oil change and after that the car no longer worked. Bu= t the strange thing is that if you run the car in the morning works perfect= ly for approx. 30 minutes making gear changes beautifully, after those 30 m= inutes stop shitfting and remains as in limp mode with that strange humming= sound.I thought I had not sufficient amount of transmission oil but I have= the meter to check. so I take chances and add 1 quart. more to test but do= es the same.once the vehicle is cooled again fully operational for 30 minut= es.
Also the mechanic scan the transmission codes. He said that " ECM has code = ID151 gear comparision incorrect and code ID 147 gear implausible or trans.= slipping". Also the differetial pinion seal is leaking and needs a transmit= ion mount.
Any sugestions what should I do???
Thank you all
Reply to
krstevalek
at I have, because it is not my original language.This is my first post her= e in the forum.I have a MB W202 C280 Sport USA version M112 engine . a few = weeks I have it stopped by a strange problem in the transmission.=A0
weeks ago the car did not perform the shifting and had a strange humming n= oise, but that happened only once. We took it to the mechanic and said it w= as an electrical problem and had cleaned the sensors and it works (do not k= now what sensors) . They also suggested we perform the change of the transm= ission oil.We made the oil change and after that the car no longer worked. = But the strange thing is that if you run the car in the morning works perfe= ctly for approx. 30 minutes making gear changes beautifully, after those 30= minutes stop shitfting and remains as in limp mode with that strange hummi= ng sound.I thought I had not sufficient amount of transmission oil but I ha= ve the meter to check. so I take chances and add 1 quart. more to test but = does the same.once the vehicle is cooled again fully operational for 30 min= utes.
e ID151 gear comparision incorrect and code ID 147 gear implausible or tran= s.slipping". Also the differetial pinion seal is leaking and needs a transm= ition mount.
If your Mercedes is a 202029 chassis it has a 722.6 transmission. Common pr= oblems are the electronic conductor plate atop the transmission valve body = and the transmission control unit. The electrical connector at the transmis= sion frequently leaks trans fluid into the trans wiring harness and eventua= lly into the control unit. No easy diagnosis here. Take your Benz to the ne= arest Factory authorized Mercedes-Benz Dealer where they can properly diagn= ose the problem and give you an accurate estimate of repairs.
Reply to
Les4Parts
Thank you for the reply,
I did the same thing what you have been told me and the estimate that the transmition it should be replaced... that will cost me aprox 5000$ :/ What now?
Reply to
krstevalek

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.