Renault Captur Forums banner
21 - 39 of 39 Posts

·
Registered
Joined
·
9 Posts
It's impossible to give an opinion without detailed analysis, except to say grinding noises are not good. What is the warranty on new Renaults in UK? We have five years here in Portugal. In any case a call to Renault customer services might be a good idea if the car has been regularly serviced. Clutch replacement does need some special tools but nothing out of the ordinary (pullers etc) and it is one of the easier jobs on this gearbox. You will need a Renault garage to reprogram the new box though. The problem nowadays is that not many garages do engine and gearbox repairs any longer, preferring replacement over repair. As a result, a few specialist repairers have sprung up but how do you remove the gearbox and send it to them?

If I had to hazard a guess I would say the problems are inside the box on the synchronisers (syncromesh stuff). An oil inspection might confirm this. If so, it shouldn't happen. These boxes are supposed to be maintenance free. Try to get Renault customer services to investigate and, at minimum, share some cost. As long as you are not racing this car in manual mode Renault cannot put the blame on your driving. It's an auto box after all. Good luck and please let me know what happens - this is the first time I have heard of grinding noises.
It is only 4 year warranty. The car was out of warranty by 10 months when this issue was started.
The car was serviced regularly but missed one year service by 6 months due to covid. During covid lockdown I hardly used the car.
There was a drive shaft leak which I wasn't even aware. There was no oil leak in the driveway. There was no warning lights either. Renault said most of the oil has leaked out of the gearbox and it is after that I started hearing grinding noise.
I'm thinking of getting a used auto-gearbox from ebay. Would I still need to reprogram the auto gearbox if bought on ebay?

Renault are adamant that they need to replace the gearbox and not replace the clutch.
 

·
Registered
Joined
·
700 Posts
OK gearbox with no oil is not good. This shouldn't happen though and I would have thought Renault should take some of the blame. The gearbox has an external Transmission Control Unit attached which is part of the car's overall control system, communicating with other systems (engine, ABS etc). If you change the TCU I am "almost" sure you will need Renault to code it to the car. It could even be that the box identifies with the VIN of the car (for security). Many cars do nowadays, I just don't know about Renault. If you keep the original ECU then, apart from having faults logged with it, will need resetting for the new box. Programming also compensates for wear on the clutches and you have no idea the state of these on any second hand box. Be very careful of second hand boxes on ebay. Are there no specialist gearbox people who can advise? A reconditioned box might be a better idea.


EDIT - I forgot to add: this gearbox is used in many models, and the program is specific to the model also. So if your secondhand box has come from a different car, it will definitely need to be reset.
 

·
Registered
Joined
·
119 Posts
car gear box not fit for purpose,would not have been checked at service. Life should = life of car.
If it was leaking you would have seen oil on drive,or dripping from under the car,
Be wary of buying a s/h unit.
 

·
Registered
Joined
·
700 Posts
Please let the forum know the outcome
Yes please do. It will help others. I have been reading what I can find on the auto box and the TCU (or TCM). This contains (in flash memory) all the info needed for smooth and successful gear changes. It takes inputs from everywhere (speed sensors, temp sensors, throttle sensors, engine sensors, gearbox sensors etc etc) and turns these inputs into smooth and efficient gear changes). As far as I can tell, it also contains VIN number details to ensure (as well as security) that the outputs and gear changes are matched exactly to the car you are driving. The bottom line is that coding and programming of the new box will be essential. Many technical bulletins and updates also refer to transmission software so getting the newest version will help to avoid problems later.
 

·
Registered
Joined
·
9 Posts
car gear box not fit for purpose,would not have been checked at service. Life should = life of car.
If it was leaking you would have seen oil on drive,or dripping from under the car,
Be wary of buying a s/h unit.
That's the thing. I did not see any oil on the driveway or dripping under the car ever since I bought the car. I park the car on the driveway and on the road in the morning after school run. So I surely would have seen the oil in my driveway.
The car has done only 39K miles. So its not mileage related gearbox issue either.
 

·
Registered
Joined
·
9 Posts
Yes please do. It will help others. I have been reading what I can find on the auto box and the TCU (or TCM). This contains (in flash memory) all the info needed for smooth and successful gear changes. It takes inputs from everywhere (speed sensors, temp sensors, throttle sensors, engine sensors, gearbox sensors etc etc) and turns these inputs into smooth and efficient gear changes). As far as I can tell, it also contains VIN number details to ensure (as well as security) that the outputs and gear changes are matched exactly to the car you are driving. The bottom line is that coding and programming of the new box will be essential. Many technical bulletins and updates also refer to transmission software so getting the newest version will help to avoid problems later.
So what are you advising or recommending mate? take it to renault (who are insisting on brand new gearbox costing £7K) or get the gearbox reconditioned? If one of the specialist places can recondition the gearbox then that's the cheapest option. I will probably part-exchange the car for a new car after repairing the gearbox. I don't trust renault anymore. It's poor quality in everything.
 

·
Registered
Joined
·
9 Posts
Yes please do. It will help others. I have been reading what I can find on the auto box and the TCU (or TCM). This contains (in flash memory) all the info needed for smooth and successful gear changes. It takes inputs from everywhere (speed sensors, temp sensors, throttle sensors, engine sensors, gearbox sensors etc etc) and turns these inputs into smooth and efficient gear changes). As far as I can tell, it also contains VIN number details to ensure (as well as security) that the outputs and gear changes are matched exactly to the car you are driving. The bottom line is that coding and programming of the new box will be essential. Many technical bulletins and updates also refer to transmission software so getting the newest version will help to avoid problems later.
It most definetely must be a clutch issue because the car is high reviving and feels like it is neutral when I accelerate little bit. especially trying to get over a roundabout quickly. So i take a lot of time at the roundabouts these days because this is getting dangerous as it high revs and not moving much.
 

·
Registered
Joined
·
700 Posts
So what are you advising or recommending mate? take it to renault (who are insisting on brand new gearbox costing £7K) or get the gearbox reconditioned? If one of the specialist places can recondition the gearbox then that's the cheapest option. I will probably part-exchange the car for a new car after repairing the gearbox. I don't trust renault anymore. It's poor quality in everything.
I am recommending getting it reliably reconditioned, but check first with the company what will be needed to reprogram the TCU for your car. They may be able to do it. They may say Renault will do it. They may even say the data can be copied from the existing Control Unit.
 

·
Registered
Joined
·
9 Posts
I am recommending getting it reliably reconditioned, but check first with the company what will be needed to reprogram the TCU for your car. They may be able to do it. They may say Renault will do it. They may even say the data can be copied from the existing Control Unit.
OK. I called gearbox reconditioning centre. It is going to cost in total £2750 to recondition the gearbox. :(
 

·
Registered
Joined
·
4 Posts
It's impossible to give an opinion without detailed analysis, except to say grinding noises are not good. What is the warranty on new Renaults in UK? We have five years here in Portugal. In any case a call to Renault customer services might be a good idea if the car has been regularly serviced. Clutch replacement does need some special tools but nothing out of the ordinary (pullers etc) and it is one of the easier jobs on this gearbox. You will need a Renault garage to reprogram the new box though. The problem nowadays is that not many garages do engine and gearbox repairs any longer, preferring replacement over repair. As a result, a few specialist repairers have sprung up but how do you remove the gearbox and send it to them?

If I had to hazard a guess I would say the problems are inside the box on the synchronisers (syncromesh stuff). An oil inspection might confirm this. If so, it shouldn't happen. These boxes are supposed to be maintenance free. Try to get Renault customer services to investigate and, at minimum, share some cost. As long as you are not racing this car in manual mode Renault cannot put the blame on your driving. It's an auto box after all. Good luck and please let me know what happens - this is the first time I have heard of grinding noises.
Hi im having the same problem here in Portugal with a Renault Megane year 2018 with 129.000Kms so they say warranty is over and they asked me € 7000 to replace gearbox
 

·
Registered
Joined
·
700 Posts
Hi im having the same problem here in Portugal with a Renault Megane year 2018 with 129.000Kms so they say warranty is over and they asked me € 7000 to replace gearbox
When it happened to me I was told the only people who could repair the auto box were in Lisboa (via Renault) so not much choice here. However, the local Renault dealer (Lagos) fixed all my gear change problems with a software update. You don't say what your problems are (grinding noises?)
 

·
Registered
Joined
·
4 Posts
When it happened to me I was told the only people who could repair the auto box were in Lisboa (via Renault) so not much choice here. However, the local Renault dealer (Lagos) fixed all my gear change problems with a software update. You don't say what your problems are (grinding noises?)
The problems in the car are indeed grinding noises and the gears takes long to change from one to another. When i shut the engine and restart the car goes normal for about 10m and then goes back to the problem. Renault dealer in Lisboa has the car for 2 months now and they say to replace gearbox price €7000. Im looking for other option ans i cannot afford to pay that amount. Thanks
 
21 - 39 of 39 Posts
Top