Hi, documenting my Progress active the Heated Steering Wheel in my X3.
My car was sold with the warm weather package as a result it did not receive the heated steering wheel option, after removing the air bag from the M Sport Wheel I discovered the wheel had the heating eliminates and controller. YES!!
So I needed to order the heated switch and lower steering Column cover.
61319237941 (steering column lower trim panel)
61319267365 (heated steering wheel push button)
Discovered I could do the following programming with Bimmercode which I have done.
- F25_LIN_VARIANTE_LRE = lre_tlc_lhz
- F25_CODDT_BYTE_00_SZL_LIN_LHZ = F25_Lenkradheizung_verbaut
- F25_LIN_VARIANTE_SZL = szl_aic_4_band_fla
- F25_LRE_Verbaut = aktiv
Also some additional information useful for interpretation of the above values:
- LHZ (Lenkradheizung) ist the German abbreviation for heated steering wheel.
- SZL (Schalt Zentrum Lenkrad) is the Switch cluster steering column
- LRE (Lenkrad Elektronik) is the Control unit, steering wheel electronics (angle Sensor)
- LIN = Lin Bus (LRE is connected at LIN)
- LIN_VARIANTE_LRE = set with the lre_tlc_lhz parameter if car as Lane departure warning (Vibration) and heated steering wheel
- fla: High beam assist (switch)
- aic: Rain sensor intermittent switch (auto interval control)
- 4_Band: Steering wheel heater
- HW: Rear wiper switch
I'll add pictures soon. At this point the light on the switch lights up, but the wheel doesn't get warm, nor do I have an indicator in the gauge cluster that it is active.
I suspect from some limited research I have to do the follow:
(found on another site)
0) Read the FA from the car and save it to a file.
1) Edit the FA to add the 248 code, save changes, calculate FP and save the FA (to the file above), not write to the car.
2) Activate the FA.
3) Read SVT (...
4) Right-Click then CODE the following ECUs, one at a time, in this order: FRM, ICM, JBBF, KOMBI.
5) Disconnect from the car.
If the dealer should ever over-write my changes, I would Load the FA from the file updated in 1 above and re-code the four ECUs listed above.