Bentley 2005 tpms issues
#1
Bentley 2005 tpms issues
Hello, I am having the usual issues with the TPMS module, so bought a new one but I still cant get it to work. Everything on the Ross Tech (laptop) reads ok but it wont learn the settings on the infotainment display screen. I am now thinking that my stored pressure setpoints might be wrong, it is set at 2.8bar on the rear and 3.0bar on the front. I thought that as long as the tyre pressures were actually set to the same as the TPMS setpoints that it would work but I am now thinking this may not be correct. Can someone please let me know what the factory setpoints are for the front and back so I can reset the system to these and then inflate the tyres accordingly. I have spent so much time and money trying to get these things to work I am not giving up without a fight.
Thanks
Thanks
#2
Mine is a 2005 model and I struggled for a long time with TPMS issues, which in the end could only be solved by replacing the module to the one part no. 3D0 907 273 G .If yours isn't this one don't waste any more time because with the older modules, as soon as you start having troubles you won't be able to get it to perform acceptably for any reasonable period of time.
After installation you should properly code the new module.
Then inflate tires to the recommended pressure (according to the owner's manual).
Go for a 20 minute ride on a stretch of road where you can roll at speeds around 100 km/h (starting with cold tires)
Use you headunit to start the learning sequence as soon as you start the ride.
Wait until the MIL goes out (it shouldn't take more the 15 minutes).
Up until I changed to this suffix lettered G module, I spent uncountable number of hours experimenting all sorts of modules coding, tire pressures, sensors replacements etc, all at no avail. Nothing seemed to work reliably when using the other suffix lettered modules.
All has been well and no more issues on the last 2 years with this newer module.
By the way, I run 2.9 bars front and 2,5 bars rear. I never drive at speeds that justify higher tire pressures.
After installation you should properly code the new module.
Then inflate tires to the recommended pressure (according to the owner's manual).
Go for a 20 minute ride on a stretch of road where you can roll at speeds around 100 km/h (starting with cold tires)
Use you headunit to start the learning sequence as soon as you start the ride.
Wait until the MIL goes out (it shouldn't take more the 15 minutes).
Up until I changed to this suffix lettered G module, I spent uncountable number of hours experimenting all sorts of modules coding, tire pressures, sensors replacements etc, all at no avail. Nothing seemed to work reliably when using the other suffix lettered modules.
All has been well and no more issues on the last 2 years with this newer module.
By the way, I run 2.9 bars front and 2,5 bars rear. I never drive at speeds that justify higher tire pressures.
#4
I agree, anything before a G is a waste of time trying to get working, and unless you have VAG COM you wont be able to fix it anyway as the new module needs to be coded to the car.
The problem I have is that I can drive around with my pc connected to the OBD and see everything working (temps, pressures etc) on all 4 wheels.
However it wont send all that info to the display on the car, and I just cant work out why. I think that if the pressures are not within 0.2 bar of the setpoint it will refuse to allow the system to work, but I really getting to the end of the line with this as it has taken months to get this far.
The problem I have is that I can drive around with my pc connected to the OBD and see everything working (temps, pressures etc) on all 4 wheels.
However it wont send all that info to the display on the car, and I just cant work out why. I think that if the pressures are not within 0.2 bar of the setpoint it will refuse to allow the system to work, but I really getting to the end of the line with this as it has taken months to get this far.
#5
Hi Martin.
So I guess you are running with the G module.
Can you give me more info.
- What model and year is your Bentley?
- Is it an US model?
- what is the code you dialed in to the module?
- Have you run the learning procedure many times? If so, what was the results?
- Have you tried with different tire pressures? try lowering the rear tires pressure to, say, 2,5 bars.
this TPMS system is really very cumbersome, I think the newer models have more elaborated and reliable systems.
So I guess you are running with the G module.
Can you give me more info.
- What model and year is your Bentley?
- Is it an US model?
- what is the code you dialed in to the module?
- Have you run the learning procedure many times? If so, what was the results?
- Have you tried with different tire pressures? try lowering the rear tires pressure to, say, 2,5 bars.
this TPMS system is really very cumbersome, I think the newer models have more elaborated and reliable systems.
#6
I bought a new G ECU which is located next to the rear seat and replaced it.
To code it you need to connect the car to ross tech (vag com) or something similar.
Once the unit has been accepted it should just start learning and work after about 10-15mins drive however after many attempts this did not happen.
I have now set all the tyres pressures to 3bar and am now adjusting the setpoint values up and down to see if anything works.
So for example I set all the display setpoints to 2.8 bar, go for a drive (doesn't work) so I try setting them to say 3.2bar, go for a drive still doesn't work.
The code to change the setpoints (adaptation) for the TPMS module is 10896
The annoying thing is I can see the sensors are working, as they can be displayed on my laptop.
I will put a video on youtube next week and add a link.
To code it you need to connect the car to ross tech (vag com) or something similar.
Once the unit has been accepted it should just start learning and work after about 10-15mins drive however after many attempts this did not happen.
I have now set all the tyres pressures to 3bar and am now adjusting the setpoint values up and down to see if anything works.
So for example I set all the display setpoints to 2.8 bar, go for a drive (doesn't work) so I try setting them to say 3.2bar, go for a drive still doesn't work.
The code to change the setpoints (adaptation) for the TPMS module is 10896
The annoying thing is I can see the sensors are working, as they can be displayed on my laptop.
I will put a video on youtube next week and add a link.
#7
Hi Martin.
Yes, to code the module you must connect your Bentley to Ross Tech VCDS or something similar. Here I am posting a picture as an example of the screen showing you the TPMS window in VCDS highlighting the the software code.
The correct code takes in consideration the car model, country market, with or without a spare wheel TPMS sensor, etc.
My car is a Bentley Continental GT, european model, without spare wheel sensor. The software code that works in my TPMS module is 0310354. (And not the one showing in the picture below)
If yours matches mine I am sure you can successfully use the same.
I hope this info helps you.
Yes, to code the module you must connect your Bentley to Ross Tech VCDS or something similar. Here I am posting a picture as an example of the screen showing you the TPMS window in VCDS highlighting the the software code.
The correct code takes in consideration the car model, country market, with or without a spare wheel TPMS sensor, etc.
My car is a Bentley Continental GT, european model, without spare wheel sensor. The software code that works in my TPMS module is 0310354. (And not the one showing in the picture below)
If yours matches mine I am sure you can successfully use the same.
I hope this info helps you.
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#9
tpms
Hi thanks Sspeeder I will try that code and see if it works, as I did notice the new ecu included a spare tyre sensor which my car does not have.
Once the weather improves i will let you know.
Once the weather improves i will let you know.
#10
Last edited by molphar; 09-30-2021 at 04:04 PM.
#11
#13
Yes, you can program the sensors with that tool. I bought a cheaper/simpler one that is just a pad, this one https://www.autelstore.co.uk/wholesa...ry-device.html
A programable sensor is one that can be cloned with the same ID as the one you have in the wheel presently either by inputting the ID manually or bridging it from the old one to the new one using that tool or the pad.
The pad has to be phisicaly connect to a PC via USB whereas that tool connects to the sensors wirelessly, thus way easier but a bit more expensive.
Good luck.
A programable sensor is one that can be cloned with the same ID as the one you have in the wheel presently either by inputting the ID manually or bridging it from the old one to the new one using that tool or the pad.
The pad has to be phisicaly connect to a PC via USB whereas that tool connects to the sensors wirelessly, thus way easier but a bit more expensive.
Good luck.
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