P0711 code

[Loungelizard61]

Hi there,
I have a pending trouble code of "P0711 = transmission fluid temp sensor circuit range/performance."
First step is to locate this thing and check if it is connected properly.
Does anyone know where this sensor/connector may be located? (somewhere on the transmission I suppose)?
The car is a 2005 206cc 1.6lt auto.
Cant detect any actual physical issues with the car, but someone put the sensor there for a reason, and I would like to have a scantool report with nothing on it!
Any help would be appreciated.
Gordon K

[IanL]

Ssrvice Box procedure states

"To replace the fluid temperature sensor ( 1), the entire hydraulic block electrical harness assembly must be replaced."

You first have to remove the hydraulic Valve Block to gain access. There are other referenced procedures to follow to do this, and many illustrations. It involves having the car on a lift, draining the cooling system and the gearbox, etc. If you want to do the job, you really need to access the procedures in the Servicebox.

It can best be had, together with the wiring documentation and and parts details, in the emanual.

Best tenner I ever spent, and, although it looks like you are buying a manual for one car, it actually covers ALL the listed models.

You can also get pirated versions on EBay, with the usual nut-opening hassles, but the emanual is pre-installed for loading into a virtual machine which runs on any PC or MAC, so vastly superior.

[Loungelizard61]

Wow, thanks for the quick reply.
I have ordered the emanual, and will be collecting as much info as possible.
I assume this Job is not urgent, but will do it in the next 4 weeks.
(would like to replace the transmission oil as well)
I will let you know how the job goes.!!!!
Regards,
Gordon.

[Loungelizard61]

Well, it’s been a few weeks longer than I would like, but finally the car is available and I have all the resources to do this job.
I’ve researched many websites, including this one, to get as much info as I can to do this job with the minimum of trouble.
My daughter now informs me that the car has very hard gear changes and hesitates to change up or down, and also shudders when shifted from park to reverse and then to drive.
Well let’s start with draining the old transmission fluid….
The drain plug at the bottom of the transmission is NOT the same as any diagram or article that I have researched and printed out.
It does not have the drain plug and level pipe assy (which I think is a good idea), but it is identical to the filler plug at the top, ie the square 8mm drive and the copper washer. The drain plug doesn’t appear to be modified in any way either.
Anyway, I opened it and out flowed only 400mls of brown smelly liquid.
I reset all the OBD2 codes with a professional scantool, including the original P0711.
Then the transmission was refilled with 3.0 litres of new oil with the correct specifications, and took it for a test drive. Now it drives like a new car!!, shifts perfectly, and does not shudder when shifted from park to drive.
But on returning to the workshop, there is oil everywhere!!!
Checking the fault codes with the scan tool ….no codes to report!!!! That’s good.
Trying to find the source is difficult as the oil is thin and hot and travels everywhere, but I had a good suspicion that the O-ring gasket on the oil cooler was the source of the problem.
I replaced the large O-ring, drained the transmission and replaced the fluid again but this time only put in 2.75 litres. This time, there is no oil leaking after the test drive, and the car still drives perfectly.
So my question is ….
1. was the oil cooler the original source of the leak, but as there was virtually no oil to leak out, maybe.
2. did I over-fill the transmission when I refilled it with 3 .00 litres of oil, maybe or
3. have I fixed the oil leak and now 2.75 litres is not enough oil? I don’t know.
Either way I don’t have the standard way of adjusting or checking the oil level, as this feature is not fitted to the drain plug as originally described.
Or do I just turn up the radio and drive the bloody thing?

[Capncol]

Not had a lot to do with peugeot autos, but one thing to bare in mind is you can't drain out all the fluid as a fair amount is left in the torque converter, so I suspect you over filled it. The level goes up when trans is hot.

[Loungelizard61]

Thanks for the reply,
I think you are right Col.
there is usually about half the total amount left in the torque converter, so it needs to be drained and flushed a couple of times to dilute the old oil, but you can never get all of the old oil out.
At the moment, this little car goes like a gem, despite all of the forums mentioning a 4 litre trans oil refill, this car seems to be going well on 2.75 litres, so I'm just going to leave it for now.
I will drain the Trans oil again at the next service and see how much comes out then.

[Loungelizard61]

A quick hindsight update:
My 206cc is a 2006 model and has a slightly different AL4 gearbox to the older AL4's.
The info and photos were found on Citroen websites, as these newer boxes were used on those type of cars as well as later model Peugeots
.
The square drive drain plug at the bottom, is actually the level checking plug.
There is also a plastic tube UP INSIDE the drain hole, that holds back the correct level of fluid.
You cant see this tube unless you are directly under the drain hole, and who does that ????
(A very minor difference to the old model, but different.)

So I have drained out the excess oil, using the square drive plug, (This is now the correct amount.)
then removed the inner plastic tube with an 8mm allen key, and a further 1.85 litres was removed. Now the transmission is drained except for the torque converter.
With all the previous draining and refilling, the torque converter oil should be pretty clean by now anyway
I replaced with 2.00 litres of new transmission oil and the car still drives 100% , but now it has the correct amount of oil, and no oil leaks.

The improvement in performance and operation of this gearbox, after the new oil was installed, was amazing. I just got the quantity wrong!!!!
I would suggest that this electronic gearbox has some good design features, EXCEPT for the crazy sales spin, that it is "sealed for life".
I reckon that most minor faults can be resolved by replacing the oil, which is relatively cheap and easy to do.
From now on, I'm going to change the transmission oil every second engine oil change.
See the attached photos:

[leegsi]

Thanks for the info

[IanL]

Good to know. Am I right in thinking that the first time you drained the fluid, you were actually only draining the excess?

I think brown and smelly is a good description of "burnt" oil, which is generally quoted as a reason to replace it. It is hard to believe that it overheated because it was overfull, but that would seem to be the explanation.

[Piyas]

Is the OBD2 enough or do we need to purchase also the PP2000? Currently I don't have any tools for reading the codes.

[IanL]

PP2000 every time - you get everything it is possible to get. Why settle for less?

[Piyas]

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I drained my transmission...with car cold only the outer plug removed, i got around 1325ml , then when the plasstic was removed i got around 1.8l. Is it enough since i only poured 2l fluid as replacement?

[IanL]

I drained my transmission...with car cold only the outer plug removed, i got around 1325ml , then when the plasstic was removed i got around 1.8l. Is it enough since i only poured 2l fluid as replacement?

If I understand it correctly, if you got 1.8 l after removing the plastic, you should have replaced it with 1.8l. I think you are 0.2l overfull. Perhaps that it too little to worry about.

Remove the outer plug and any excess should come out.

Follow the instructions at http://www.peugeot206cc.co.uk/repair-20 ... ci05k3.htm. Note the gearbox oil should be warm

[Piyas]

The cc is not my daily drive, so i only start the car around twice a week and drive it about twice a month.

When i accelerate and press the brake to stop, the car jolts when i press the gas. The AL4 change sometimes gradual sometimes press alot just to move the car. Is my fluid still dirty or its because newly change fluid? Or is it problem with the solenoids?

[IanL]

The first thing is to check that the correct amount of fluid is present - the jerking could be caused by too much. Make sure the fluid is warm.

If that does not help, do another fluid change. Make sure the fluid is warm.