Tacho PRO 2008 Mileage Correction For BMW 3series E90 E91


BMW 3series E90 E91 change mileage with Tacho PRO 2008 only three steps, here you are:

Tacho Pro 2008 Bmw 3 E90 E91 1

Use the board M35080 and clip smd8

Adjustment is done in 3 steps:
1. eeprom in instrument
2. CAS programming with BMW CAS connector
3. ErrorScan

Remove the instrument and open it
Look for the 8-pin chip M35080
( remove this chip)
connect the clip with port M35080.
Connect the clip to the chip M35080 (red to pin 1).
Select in theTacho Universal BMW -> 3er/X3->E90/91 ->M35080 clip
TheTacho Universal showns you the original km.
Save the data!!!
Go back to the menue BMW ->3er/X3-> E90/91-> 35080-0 (erase) and wait until
Tacho Universal displays „OK“
Select BMW -> 3er/X3-> E90/91 M35080 clip
Load the original data you saved before and write it completely to the chip
Error message „data not equal“ can be ignored
Select BMW -> 3er/X3-> E90/91 M35080 clip and program the new km.
Do not install the instrument back yet! Before that, the CAS must be programmed to
Please follow the instructions carefully!!!

If the chip is 35080 V6 you must replace it by a new. This is new not
erasable generation.


Tacho Pro 2008 Bmw 3 E90 E91 2 Tacho Pro 2008 Bmw 3 E90 E91 3

2. CAS with the BMW CAS connector

Tacho Pro 2008 Bmw 3 E90 E91 4

Connect the cluster connector from car to port A. (Pin1 to red)

Before you pull a fuse,
remove the key and store it away from the car!
While programming, do not open or close any doors or touch any buttons!!!

Remove the small fuse. The fusebox is on the passengers side behind the
glovebox. See picture.
Important: the small fuse stays removed during the complete process.
Connect the Can Dongle with the BMW CAS cable and the cluster connector in the
Select BMW -> 3er/X3 > E90/91 -> Cas Prog
Follow exactly the instructions in Diga-Display, like „light on/off“
When it asks to „remove fuse“, the big fuse must be removed
i fit asks you to put it back, put back the big fuse
after programming is finished, put back the small fuse



Connect the connector shown to the OBD2
connector and select the menue „Errorscan“.
Wait until the main menues returns.
This can take about 5 minutes!