DB9 Gear Box Issues

[bryanlittefair]

Hi All, I have my car going into the local dealer again for some diagnosis on the gear box. I have a db9 automatic box on a 11 plate. a couple of times recently when I have been driving it, I have had an issue with 'drive' not being available, and having to drive the car on the paddles, which works fine. when the car stops I also have an issue with selecting 'park' you press the button but it doesnt go out of gear, and an error message appears - one of several gear box related - service needed, reverse not available, no drive function, and you have to select N and then put the handbrake on and remove the key. When returning to the car and inserting the key, the car is always in 'P' even if I left it in 'N'

the dealer thinks it's more electrical related around the buttons than the actual gearbox, anyone else had a similar experience ?

I am assuming all of this will be covered under the warranty ?

[pilgrim7777]

These symptoms would indicate either connections to the actual buttons ie the plug on the rear of buttons or a loose main starter plug connection. At least that’s where I would look first, has any work been done in the main ski slope area?

[bryanlittefair]

no nothing that I know of, they had it recently to replace a convertible roof control module, but thats behind the rear passenger wheel arch I believe.

[Cyrusguy]

DB9 automatic here too. The error messages ("Gearbox fault. Cant select P/D/etc.")show up from time to time if you press the buttons in an abnormal angle. Kinda stupid actually. Always goes away after a while, a second press of the button or a restart. But yours seem to be of a more serious nature. Definitely have it checked at the dealer. I am currently having my clutch plate changed and asked my technician to take a look at the transmission as well. He said he can stop these error messages from showing up and is certain it's an electric al/computer related issue. Nothing wrong with the transmission itself. Good luck.

[bryanlittefair]

great thanks for sharing, hopefully mine is similar

[pilgrim7777]

The fact you cannot select drive would suggest it is the drive button all other symptoms stem from that. So with that I would go with faulty switch or the plug connection. Most unlikely to be anything to do with the Transmission drive/gearbox.

[michael gould]

pilgrim7777 said:

The fact you cannot select drive would suggest it is the drive button all other symptoms stem from that. So with that I would go with faulty switch or the plug connection. Most unlikely to be anything to do with the drive/gearbox.

yep agree with the above....the fact you can use the paddles normally, indicates the box is fine....it sounds like a connection problem

[Gibberish]

bryanlittefair said:

When returning to the car and inserting the key, the car is always in 'P' even if I left it in 'N'

The transmission will automatically select ‘P’ if the ignition is turned off and you have D, R or N selected.

So that’s not a fault.

[bryanlittefair]

thanks for all the comments, making me feel a lot better...