peugeot 407 automatic gearbox faulty

[CarPir]

The "PRND" Warning Sign came out on my 407's, and on the screen said Gearbox faulty, After restart my car, the warning sign disapear...

Did any one found what is the problem, on the Car service said that i should change the whole gearbox (4700eur ). The car has 40.000km and it is 4 years old.

Thank you

[magma1974]

which gearbox am6 or 4hp20,check maybe stop signal sensor if it working ok do full diagnostic with pp2000 if dosent show noting change oil in gearbox

[CarPir]

Thank you for your kind reply

Do you think that changing the oil will resolve the problem?
i already been on peugeot authorized service and they dont have a clue what is wrong, they already change me some sensor but the problem still remains.

Next thing they said is to change the entire gearbox.
I am very suspicious about that diagnose is correct.

Change the oil they said is around 500 eur.

[magma1974]

buy oil your self and change with independend garage or yourself

[jmkent]

Originally Posted by CarPir

Next thing they said is to change the entire gearbox.

Seems a bit drastic at this early stage..... I would definitely be doing all the simple stuff first, and even then look for a s'hand box. I would be trying my best to throw it back at them at that age/mileage to warrant a new box

[CarPir]

Do you think that oil change could make some difference with that kind of an error, when error ocuried i can feel a small kick in gearbox, but then i can normaly continue to drive, just error is on the display until i restart the car.

[danthevan]

Originally Posted by jmkent

Seems a bit drastic at this early stage..... I would definitely be doing all the simple stuff first, and even then look for a s'hand box. I would be trying my best to throw it back at them at that age/mileage to warrant a new box

Trouble is if 'peugeot planet' says the car is ok, then the car is ok.
Most mechanics in the dealers won't / don't know to look any further than the diagnostic socket

[CarPir]

They said to me that when they connect it to the computer doesnt show no error, than the car is working ok for two days and than i get the same error.

my question is will the oil change make some difference?

[magma1974]

Originally Posted by CarPir

They said to me that when they connect it to the computer doesnt show no error, than the car is working ok for two days and than i get the same error.

my question is will the oil change make some difference?

maybe yes maybe not nobody can tell you 100 % if not see the car.basic question whats type gearbox?

[CarPir]

where can i check what type of gearbox is