BMW odometer Mileage Correction Guide
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Step 1
Use VIN to check what IMMO system of this BMW ,CAS or FEM or BDC
If car work with you, you can use ACDP OBD identify to read IMMO info via car OBD .
Step 2
Remove odometer off and open it. looking for the following chips model ，If cannot found
Looking for 35128WT or 35160WT . every dash chip’s location is different , so you need to check both side of the dashboard ,and check for the mark of each chip.
If the chip model is one of the following , you can use Module 4 to correct the dash milage
Yanhua Mini ACDP Module 4 BMW 35080 35160DO WT EEPROM Read & Write with License A802
Buy in Store
Buy on Aliexpress
ACDP-1 Module 4 connetion
Video of 160DOWQ odometer modify
https://youtube.com/shorts/l2t_4q3mng0?feature=share
ACDP-2 Progammer and moduel 4 connecction
If the chips model is 35160WT or 35128WT, these two kinds of chip model cannot be eraser by Module 4 or another tool . For 35128WT and 35160WT ,you need to use our YH 35XX programmer to do the following steps
1-Soler the original chips off and solder on our 35XX programmer board
2-Read original 35160WT or 35128WT chip data +ID by 35XX programmer
3-Correct mileage as require ,and after corrected it will generate a new date
4-Write this new data into a simulator chip by 35XX programmer .
5-Solder the simulator chip to the dashboard.
Video of how to use this tool
How to buy this 35XX programmer and emulator
buy in the store
https://www.miniacdp.com/productinfo/1412353.html
or follow this link to order on AliExpress
https://www.aliexpress.com/item/1005008696508974.html
For simulator chips ,you have two kins ,
The red one is small ,and it only can replace 35128 WT chips . the advantage of this chips is not obvious after replacement. and use this chip ,no red dot . But it only can replace 35128WT chips.
https://www.aliexpress.com/item/1005008696508974.html
Before replacing
After replacing
Another kind simulator is bigger and has a golden tail, The disadvantage of this kind of simulator chips is that it is more obvious after replacement, but advantage is it easy to solder and can be removed and welded repeatedly, it compatible with both 35128WT and 35160WT chips, that means it can replace both 35128WT and 35160WT chips
https://www.aliexpress.com/item/1005008696508974.html
Step 3 Reset car IMMO module mileage to 0
Why need to reset BMW car IMMO module mileage to 0 ?
Because the odometer mileage and IMMO module mileage will be sync . when you modify the mileage of one of them , the modified milage will be sync to each other , so for prevent the original mileage sync to odometer , when you finish the odometer mileage correct ,before you put the odometer back to car ,you need to reset the IMMO milage to 0 ,that when you install the odometer back to the car , the milage you want will be sync to IMMO .
If car IMMO module is CAS Module ,you will need ACDP Module 1 BMW CAS module ( CAS3+/3++ recommend reset on the bench ,others can be reset by OBD )
If car IMMO module is FEM Module ,you will need ACDP Module 2 BMW FEM/BDC module reset on the bench.
If car IMMO module is BDC Module ,you will need ACDP Module 2 BMW FEM/BDC module reset one the bench.
Video of how to reset CAS4 IMMO module milage to 0
https://youtu.be/JIjNop7HhEM?feature=shared
Video of how to reset FEM/BDC IMMO module milage to 0
https://youtu.be/_LeZRzhYZaU?feature=shared
Step 4 Put IMMO module and odometer back to car.
About filter
When do I need to add filter ?
If the car is G series ,then the IMMO module will be BDC2 or BDC3 ,because now no tool can reset the milage to 0 yet .So you need to install a filter to prevent the IMMO mileage sync to odometer .
How many kinds filters we have ? we have 3 kinds
1) 18 in 1 filter applicable to the following car models:
https://www.aliexpress.com/item/3256803463705465.html?
1. support the following Mercedes-Benz
S (222), S (221), C (205), C (204), V (W447), E (W212), E (W207), A (W176), G (W463), ML (W166), SL (R231), GL (X166), B (W246), CLS (W218), SLK (R172), SLS (W197), CLA (W117), GLK (X204)
2. BMW: CAS4 / FEM Fxx
BMW 1 Series F2X, 3 Series F3X, BMW X5
BMW 5 Series F10, 7 Series F01 / 02 and other chassis models of the CAS4 Fxx series (F01, F02, F07, F18, F10, F20, F25, X3, etc., suitable for 9S12 XEP series 5M48H / 1N35H).
ID 7 filter for iDrive 7 LCD odometer
https://www.aliexpress.com/item/3256808493066165.html
ID8 filter For BMW G Series ID8 odometer such as BMW ID8 odometer on BMW X5/X6/X7/XM and 3 series 4 series5 series 7 series .
Advantages:
The filter does not require soldering , only need to plug in the car odometer plug and socket. The installation is simple, safe, and reliable.
https://www.aliexpress.com/item/1005008685697407.html
Our Filter only support ID8 not support ID8.5 Yet
Please Notice all the filter we have are not for stop odometer mileage running or frozen mileage .
