Greggo

SEE LATER POST FOR RESOLUTION


Frustrated, need to vent. All comments welcome.

Decided to retrofit heated steering wheel. Purchased necessary parts, correct for my model/build.

2008 535xiT LCI 05/2007

Sport Leather steering wheel
Switch cluster with all switches.
SZL / Clock spring

Installed, and coded (perhaps incomplete) but the light does not come on. Even with ISTA Diag, the light does not come on, which should light up even if there was a heater element or temp sensor problem. (I.e., during diag, auto wiper light comes on, but does not activate wipers.)

For the steering cluster, the online wiring diagrams are a bit vague and incomplete for this vehicle. Some references show the steering mounted control module, which does not exist on the later models. Makes it difficult to trace wiring. And, all other functions work correctly. Since everything is tied to the CAN bus, can assume that is functioning correctly.

The VO has been updated correctly. The SZL and DSC have been initialized and calibrated correctly. What other modules need to be coded? Found vague references to KOMBI, and CIC (CCC,) but have not dug into them yet.

Appreciate any input.

gman6262

ELE-242 Part 1 - 03/2007 to 09/2007

ELE-242 part 2 - 03/2007 to 09/2007

Forgive me for suggesting the obvious, you've checked both fuses? I don't have any experience with coding these, can't offer any further assistance.

Greggo

Fuses F28 & F17 are both good, or other functions of the column and wheel would not work. Everything works as expected except heat.

Going to replace the Steering Column Switch Cluster. The part I was sent is genuine and coded without much fuss, but I cannot find any references to that part number. Took a lot of digging and it does appear to be correct, but too hard to find the information. That makes me suspicious.

Will be installing a part that is a known part number for my vehicle. There were few E61's made in general, and there were several changes being made aggressively as production started. I.e., The LCI tail lights' wiring looks like a high school project! The pre-LCI tail lights are professionally done.

Greggo

After some frustrating days, scratching head.

Decided to double check part numbers and made a decision to purchase a 'known,' part for the SZL. The one supplied to me had questionable part number that I could not verify fitment.

And while driving in the rain, discovered the wiper switch was not for an E61, no rear wiper function.

Pulled everything out today, swapped my original switch stalks to the new SZL and swaped the clock spring from the questionable assembly above. Also double checked all connections.

Reassembled, re-coded and programmed the replacement SZL. Calibrated the steering angle sensor and cleared all errors.

SUCCESS! I now have heated steering in my E61.

gman6262

Excellent, really appreciate the update and resolution. Heated steering really is awesome.