[Ash6581]

car goes to service. i think to electrical problem. Fckng electro. Thanks twoodogs for help. When I am successful, I will inform. Have nice day.

Hello there,

Did you manage to solve the issue? I am having exactly the same problem. Thanks.

 

[minkos]

I haven't had luck with the right mechanic yet, everyone wants to change the gearbox, but that's definitely not the case. Sometimes the car starts, sometimes it doesn't, if I restart it several times, it starts up ok. It will definitely be something in electricity. I am still looking for.

 

[Ash6581]

I haven't had luck with the right mechanic yet, everyone wants to change the gearbox, but that's definitely not the case. Sometimes the car starts, sometimes it doesn't, if I restart it several times, it starts up ok. It will definitely be something in electricity. I am still looking for.

Alright dude. Hope you find a solution. I also want to take my time. Don't want to spend a fortune of hard earned money for nothing.

 

[Erro]

Hi guys. I also have a problem i think with the gearbox, when in 4th gear speeding it vibrates but only when in 4th gear. I took it to a shop and connected it to a computer and it had a faultcode which was about the clutch (not sure exactly what) then the serviceguy said that the clutch was going bad and needed changing the whole clutch set. What do you guys think?

 

[robdoc888]

Hi! I have a Grand Scenic 2011 1.5dCi with check auto gearbox sign. Reverse does not work and what I could read in this thread some of you have tried changing the solenoid. I can not find any solenoid on the different websites that sell parts. Do you have a picture of how the solenoid looks like and where it is fitted? (maybe a Renault part number?)

Did you get anywhere with this ?

 

[pauloz1890]

Hello everyone, I have the same issue with gear 2,4,6 and reverse. It started suddenly and happens everytime after 15/20 minutes driving. If I stop and make the gearbox "cooling" for an hour, I can drive 15/20 minutes and only then the problem appears again. But if I stop and make the gearbox "cooling" for 2 minutes, restart the engine, it works only during 30 seconds to 1 minute. Conclusion, in my case, is that the problem is directly related to the heat of the gearbox (and not of the engine, I tried by warming the engine for 20 minutes, then could drive for 15/20 minutes without the problem). Does this element brings someone to a new thought of what the problem could be?

I've been reading everything I found about this problem and as the previous member message, I think that the problem could come from :
1- Electric plugs and contacts
2 - Clutch actuator servo/ solenoid
3 - Input speed sensor of the 2,4,6 clutch (not sure but maybe if it doesn't work properly, it could not send the speed message to the control unit and then generate the problem)
4 - Gearbox control unit (ECU/TCU)

Any news from anyone? Does somebody figured out what was the actual cause of this problem?
Thanks!

You perfectly described the issue my Clio EDC is experiencing! It's fine when cold but after 20 mins of driving it throws the warning and I can't get into 2,4,6,R. I'm pretty sure it either needs a new TCU or clutch. Could you please let me know how you ending up resolving it?? Hope to hear from you soon.

 

[twodogs]

You perfectly described the issue my Clio EDC is experiencing! It's fine when cold but after 20 mins of driving it throws the warning and I can't get into 2,4,6,R. I'm pretty sure it either needs a new TCU or clutch. Could you please let me know how you ending up resolving it?? Hope to hear from you soon.

The answers are here, somewhere. The gearbox works fine for 20 minutes. That effectively rules out mechanical failure. The control system is all electronic so the likely suspects are voltage (battery, connections, wiring), software (update, reset, calibration) or TCU. The last item will most likely require a software calibration at the same time. Have you read the codes? It will probably read "Clutch 2 failure" or something similar. I also found that resetting them gave me some extra time, even when hot. For me, a software update was all that was needed.

 

[pauloz1890]

The answers are here, somewhere. The gearbox works fine for 20 minutes. That effectively rules out mechanical failure. The control system is all electronic so the likely suspects are voltage (battery, connections, wiring), software (update, reset, calibration) or TCU. The last item will most likely require a software calibration at the same time. Have you read the codes? It will probably read "Clutch 2 failure" or something similar. I also found that resetting them gave me some extra time, even when hot. For me, a software update was all that was needed.

I agree with you in that there is likely no mechanical issue. TCU has had latest firmware upgraded and been reset/reprogrammed from Renault (if they actually did it). I changed the transmission oil myself too just in case and while it's running a tad smoother it didn't fix the issue. The OBD codes show "clutch system performance".

I was thinking it could be a worn clutch pack as it only happens after the transmission has been used for 20 mins and warm. The car has done 125,000km - How long would a clutch pack last for? While a worn clutch would slip more when warm/hot, it's not making any strange noises and doesn't feel like it's slipping at all to me. Unless the TCU is detecting something I'm not and therefore throwing that warning and protecting itself.

I really doubt it's wiring or battery related. It started happening after the car had been sitting a lot during COVID. The original battery was low/dying. To rule that out I changed it with an equivalent fresh battery and it didn't solve it, but the problem definitely started on a bad battery. I've checked some of the wiring for corrosion and it all seems okay.

Based on all that my best guess is TCU. Renault will do that as the next fix anyways but it will be costly ($3k+) and I suppose there's a chance it won't get solved. It's a tough one for a car that's probably worth no more than $9k now.

 

[twodogs]

Seems you have covered all the bases. A TCU is only a few hundred euros. 3k sounds like a lot. As for longevity, 125,000km would be a good life for a standard manual box clutch. I would expect the EDC clutches to last longer but how much, anyone's guess. A software update can recalibrate the clutch for wear (mine was at 90k) but you have already covered this. I'm on my third car with an EDC box and I love it. It's a bit quirky when it tries to think ahead and gets it wrong. I can't recall anyone on this forum needing a clutch replaced.

 

[robdoc888]

You perfectly described the issue my Clio EDC is experiencing! It's fine when cold but after 20 mins of driving it throws the warning and I can't get into 2,4,6,R. I'm pretty sure it either needs a new TCU or clutch. Could you please let me know how you ending up resolving it?? Hope to hear from you soon.

I replaced the box from a car that had a damaged engine. The box was cheap at £200 but took a long time removing old and fitting new which I did all myself.. Now works fine. I'm guessing the problem was the clutch. Car was very cheap at £600, with £200 gearbox and fluids £100 so was a cheap 7 seat Scenic but lots of work.

 

[tombam]

I replaced the box from a car that had a damaged engine. The box was cheap at £200 but took a long time removing old and fitting new which I did all myself.. Now works fine. I'm guessing the problem was the clutch. Car was very cheap at £600, with £200 gearbox and fluids £100 so was a cheap 7 seat Scenic but lots of work.

This is interesting. As I´m struggligng with EDC, too, this could be a way to go. Could you tell me if just swapping the gearboxes worked, or you had to clone the gearbox control unit, or you used the control unit from the old gearbox for the new one?

 

[sephorambuyi94]

Hi, I have a Renault Clio 1.2TCe(120ps) GT Line 5d 1197cc EDC auto. The car doesn’t reverse when the engine warms up. I took it to the garage and the code comes up as DF 490 clutch 2 motor circuit but can’t fix it. Does someone knows what it could be?

 

[twodogs]

Hi, I have a Renault Clio 1.2TCe(120ps) GT Line 5d 1197cc EDC auto. The car doesn’t reverse when the engine warms up. I took it to the garage and the code comes up as DF 490 clutch 2 motor circuit but can’t fix it. Does someone knows what it could be?

All possible solutions are in this thread. Can't think of anything else.

 

[Silvium]

I have just had this problem on gears 1,3 and 5. Thankfully the software reset and calibraation has worked up to now (now looking for something made of wood to touch).

The original diagnostic showed a solenoid was stuck open. I was told that if the software reset didnt work the solenoid would need replacing. I dont know how big a job that would be though.

Hi Adam. Can you let me know where you did software reset and calibration?! Thanks

 

[r3ason.b3hind]

Hi all!
I think I´m joining the "Club of desprate EDC owners"... I have a 2010 reg Megane 3 Sport tourer 1.5 dCi. It has been driven already 199000km but the problems have occured first time tens of thousands of kilometers ago with previous owner. I have similar challenges like you with my Megane´s EDC gearbox and I´m quite frustrated to solve the problem.

Althought I have loned my friend´s Renault Clip-laptop and tried to think logical reasons for the jumping gears. The rootcause might be in LAN-network and EDC itself is not the troublemaker, just one sufferer of incorrect data in LAN. Some ECU or device is sending the code in LAN low network and gives false values to ABS/ESP-ecu and EDC can not send multiplex proved message to ABS. Only fault code which does not go away is related to the trunk light. Clip says that there is a permanent short circuit to the ground. I think that is not true cause light is working propelly and wiring is ok. Yesterday I noticed that the genue navigator "went bananas" and lost the location totally. I think I have to check tailgate wiring and check radio/nav antenna connections...

Error messages in dashboard infopanel:

• Check ESP
• Check Auto Gearbox
• Check Hill hold assist
• Check ABS

Now I have driven a couple of days Megane only in manual mode and changed the gears manual and no problem have occured... so far.

Hi,
Can you please let me know if you were able to find a solution to your problem as I’m experiencing exactly the same faults and I have been fighting with this issue for months now and I’ve been to so many mechanics. The only additional fault that I have is that I receive “auto gearbox overheating” when reversing on a cold car (just started up).
Btw I have tried driving in manual mode but never worked out for me as the issues persisted.
Thanks in advance

 

[TKH]

Hi all,

I have a 11 plate Grand Scenic 1.5 dci with the EDC automatic gear box. The car has now done 30K miles. On 3 separate occasion in the last 4 months I have had the waring message ' Check Automatic Gear Box' appear on the dash board and the drive has become sluggish with lumpy gear changes.

When changing the gear leaver from the Auto position in to the Manual poisition I notice that gears 2, 4 & 6 are missing and the drive is being done through 1, 3 & 5 only. Hence the lumpy changes.

The issue has on all occations rectified itself by stopping and turnig the engine off and on again.

Has any one else had the same problem? Is this an issue to be worried about? Is it symptomaic of a bigger issue?

My Grand scenic is now shut down completely. Before it was like all in here describe, 2-4-6 and R all didnt work, untill i restarted the engine then all was fine. However, now that doesnt work either! Its been at a shop for a week and they told me to just replace the gearbox, but why would i do that if its just an update needed? Or the TCU that needs to be replaced? However, mine does not work anymore at all now, deleting the codes didnt solve anything neither, still stuck out of the gears, can only use neutral and drive, manual didnt work either.

Any suggestions?