gearbox fault
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I've been having the gearbox fault message on the console and the car suddenly goes into limp mode.I switch the car off for a couple of minutes and when turned on again it works normally . But recently it has been happening very frequently. has anyone experienced this before? pls help
About a year ago we had a problem slightly different whereby complete power to the wheels would be lost, but after shutting down for as little as 15 to 30 seconds the car would start up and operate normally, until the next failure that is. The throttle body was replaced which eliminated the failures.
I have been told there is a small part on the throttle body which goes bad and only costs about $100, however, it cannot be bought seperately and the entire throttle body must be changed, at a cost of $1200 or more.
I have been told there is a small part on the throttle body which goes bad and only costs about $100, however, it cannot be bought seperately and the entire throttle body must be changed, at a cost of $1200 or more.

Hey Jags, sounds like Max is on the right track there mate.
We seem to have had a few issues along those lines on those vehicles.
However, if that does turn out to be your problem, try sending a pm to Ken@britishparts from this site as he may be able to offer you a good price!
Anyone else with advice, chip in an help a newbie out.
Jim
had similar problem, had codes ran and was told probably a o2 sensor. checked the air filter for the heck of it and saw a hose(vac) at top running across from air filter, split wide open, replaced, reset codes, 1200 miles later, runs like a champ. total cost $5.00. hope this helps. good luck, Bill
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wow, thanks for comming back to me , after reading billinohio's response I bought the a new Air filter and I'm going to install it right away...... I tell you guys what happens as soon as i try it. Thanks.
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As an update , you won't beleive it but so far it works , it seems that when the airfilter is dirty , the mass air sensor sensor sends a signal to the computer which in turn puts the car into limp mode. lets hope it continues to be ok.
Thanks again
Thanks again
So did the replaced air filter really "fix" your problem? It would be nice to see some follow-up. I am having a similar problem. 2002 S-type with gearbox fault code and a P0795 on the ODE2 reader...
The car is new to me 2 days ago. I pulled the airfilter and it was oilly, dirty and lots of dust and animal fur, etc.
I left it out for a 2 minute spin to see if the gearbox fault would remain off or not. It came back on within 2 minutes or so. The cehck engine light is still on. They did not reset that when they read the code.
Any other advice? Thanks.
The car is new to me 2 days ago. I pulled the airfilter and it was oilly, dirty and lots of dust and animal fur, etc.
I left it out for a 2 minute spin to see if the gearbox fault would remain off or not. It came back on within 2 minutes or so. The cehck engine light is still on. They did not reset that when they read the code.
Any other advice? Thanks.
Bought new filter. Still throwing codes. Each one seems to be a different code. I guess I will be at the tranni shop on Monday morning.
Unless you all can give me some more ideas to try to track down the issue this weekend.
Thanks, Bug Doc (2002 S-type 3.0L)
Unless you all can give me some more ideas to try to track down the issue this weekend.
Thanks, Bug Doc (2002 S-type 3.0L)
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I have the same issue. Gearbox fault and if you shut down engine and start it back up its gone, but happens often when shifting and when message light is on you cannot shift at all. (limp mode) i guess...has anyone solved this problem yet? i dont know if its a small fix or a full out tranny job...tks!
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Same problem, i was driving down the highway at around 30mph and the "gearbox fault" comes up. the car appears to stay in 2nd gear. i pull over and shut the car off. i restart it and the "gearbox fault light cleared and everything seemed to work just fine, drove it 200 mile after and still no message again.
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hi guys, i have an s8 4.2 quattro and my gearbox has gone into safe mode or limp home mode, has anyone else come across tis and could you tell me what i need to be thinking about in terms of repair costs, thanks in advance for any replies...............nicky
hhhmmm, i should had look at this before, since i got sugar in the engine i till tryid to flush it out. i took out the air filter so it can blow the sugar out. that when the gear box error kick in. i hope this the problem i hate to have to replace the trasmission
P0708 = Transmission range sensor circuit high input
P0743 = Torque converter clutch solenoid circuit electrical
P0755 = Shift solenoid B
P0760 = Shift solenoid C
P0141 = 02 heater circuit(Bank 1, Sensor 2)
P016 = ???????
P0743 = Torque converter clutch solenoid circuit electrical
P0755 = Shift solenoid B
P0760 = Shift solenoid C
P0141 = 02 heater circuit(Bank 1, Sensor 2)
P016 = ???????


