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+---- Thread: MB C s204 7G tronic same problem after replacing transmission (/showthread.php?tid=62849)
MB C s204 7G tronic same problem after replacing transmission - ELMEPRO - 04-04-2022
Sou, hello guys, story time MB C class s204
gearbox 7G TRONIC
i bought car with the problem, dpf is already deleted, car transmission was changing gears to soon and feel like little bit slipping, it was 100% noticeable that something is wrong after some time gearbox ecu died and engine was not showing gear numbers also car was not enable to start!
okey
I replaced whole gearbox with 100% working one, dialer programed it to at least start the car!
BUT
Now with new gearbox i has same problem changing gears to soon and feels like little bit slipping.
what could it be meybe someone had this problem, MEYBE its because off bad dpf delete solution?(i have no passible way to know when started this problem because i bought car with dpf deleted and with gearbox problem. tears
RE: MB C s204 7G tronic same problem after replacing transmission - EcuFlash - 04-04-2022
(04-04-2022, 17:12 PM)gaitnieks321 Wrote: Sou, hello guys, story time MB C class s204
gearbox 7G TRONIC
i bought car with the problem, dpf is already deleted, car transmission was changing gears to soon and feel like little bit slipping, it was 100% noticeable that something is wrong after some time gearbox ecu died and engine was not showing gear numbers also car was not enable to start!
okey
I replaced whole gearbox with 100% working one, dialer programed it to at least start the car!
BUT
Now with new gearbox i has same problem changing gears to soon and feels like little bit slipping.
what could it be meybe someone had this problem, MEYBE its because off bad dpf delete solution?(i have no passible way to know when started this problem because i bought car with dpf deleted and with gearbox problem. tears
The correct number was set gearbox? What errors does the diagnosis show now?
RE: MB C s204 7G tronic same problem after replacing transmission - brabus - 04-04-2022
Engine ecu bad software made.
RE: MB C s204 7G tronic same problem after replacing transmission - BabeH - 05-04-2022
(04-04-2022, 17:12 PM)gaitnieks321 Wrote: Sou, hello guys, story time MB C class s204
gearbox 7G TRONIC
i bought car with the problem, dpf is already deleted, car transmission was changing gears to soon and feel like little bit slipping, it was 100% noticeable that something is wrong after some time gearbox ecu died and engine was not showing gear numbers also car was not enable to start!
....
Do you mean replaced the whole gearbox with TCU ?
Actually if those gears are not damaged no need to replace gearbox.
What fault codes you have found ?
This is important to read fault codes, not just read TCU, need to read the whole car,
blind replace parts won't solve problems.
Have you do proper coding to TCU ?
After coding, have you do up shift down shift adaptation ?
If ECU problem also will cause some running problems...
But hard to tell.
RE: MB C s204 7G tronic same problem after replacing transmission - ELMEPRO - 05-04-2022
(05-04-2022, 13:33 PM)BabeH Wrote:The car what i bought is for friend, this week i will provide with full information.(04-04-2022, 17:12 PM)gaitnieks321 Wrote: Sou, hello guys, story time MB C class s204
gearbox 7G TRONIC
i bought car with the problem, dpf is already deleted, car transmission was changing gears to soon and feel like little bit slipping, it was 100% noticeable that something is wrong after some time gearbox ecu died and engine was not showing gear numbers also car was not enable to start!
....
Do you mean replaced the whole gearbox with TCU ?
Actually if those gears are not damaged no need to replace gearbox.
What fault codes you have found ?
This is important to read fault codes, not just read TCU, need to read the whole car,
blind replace parts won't solve problems.
Have you do proper coding to TCU ?
After coding, have you do up shift down shift adaptation ?
If ECU problem also will cause some running problems...
But hard to tell.
For now what i know whole gearbox with TCU is replaced, and Mercedes center was done scn coding i dont know if they did adaption i will know this week.
RE: MB C s204 7G tronic same problem after replacing transmission - loki954 - 05-04-2022
change the torque converter as well ?
RE: MB C s204 7G tronic same problem after replacing transmission - BabeH - 05-04-2022
Feel like shift quality is not good.
that will not get any fault codes.
Try do shift adaptation in Xentry, but need on Dyno,
On road is very difficult.
Normal drive can also do that but need to drive around 100km and prevent press hard on accelerate paddle.
also try pull the adaptation data see if anything out of range.