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Post by kcurpen on Sept 3, 2022 4:12:49 GMT
Hi, anyone has retrofitted the direct TPMS on A4 B9. I have retrofitted the Direct TPMS with the module 65. The car came with the indirect TPMS from factory. I used these codings, but I cant read the data from the sensors. Any Idea where the issue can be. Is there a procedure to add the sensors to the module?   Attachments:
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Post by dv52 (Australia) on Sept 5, 2022 23:51:23 GMT
kcurpen : Thanks for the PM - but as I have requested at the bottom of ALL my posts - I prefer that these matters are handled in the forum proper. So - it isn't possible to answer your question with just the data provided; there are simply too many unknowns. I have no idea why you have chosen to use the aidu-auto instructions in your attachment - did you buy the aidu-auto TPMS kit? And why did you use that particular version of aidu-auto instructions and not their other instruction HERE (given that the Audi A4 B9 is built on a MLB platform)?
Please understand that I'm not suggesting that you use either aidu-auto instruction. There are many different ways of retrofitting direct TPMS and there are lots of different ways of modifying module coding - it all depends on the type of modules factory fitted and the other peripherals installed in the car (like the type of speed sensors and the type of rear torsion suspension)!
Again, too many unknowns (alas)
Don
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Post by danshonin on Sept 7, 2022 12:31:19 GMT
Make sure the cables are installed correctly. Have the same TPMS from Aidu (via Aliexpress) and asked a pro to install for me. Have not encountered any issue.
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Post by seijon on Jan 19, 2023 23:28:36 GMT
I’ve been struggling with this retrofit for a 2018 A4 B9. The only I was able to get direct TPMS to work was changing msg bus to "suspension data bus" but when I do that, the MMI menu says "The selected system is currently unavailable" under "Tyre pressure loss indicator".
If I select "extended data bus" then the menu is fine but the MMI does not show the pressure/temp values and I eventually get a "Adaptation/part monitoring not possible - Tire pressure sensor defective/no signal” fault which has a code of C112C00.
I think this could be related to the fact that my multimedia unit had malfunctioned a while back and I had it replaced with an identical unit (part number identical) that came from an A3. Now, the A3 is built on MQB and the A4 is built on the MLB and the coding for TPMS for these two platforms are different. On MQB suspension data bus is whereas on the MLB extended databus is used.
In my current situation the system behaves half like an A3 (receiving data only when set to suspension data bus) and half as an A3 (disables the menu) or vice versa, no data received (like it would on an A3 when msg bus is set to extended) but a working menu (as expected on an A4).
Could this be the issue? What can I do to make sure all parameters of the current MIB is compatible with an A4 B9?
Any suggestions? Any help would be greatly appreciated. I’ve been at it for 2 weeks already and have invested countless hours trying to get this to work properly.
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