The fact that the passenger and drivers seats are different is concerning, probably warrants a service call.

Otherwise I would say try changing driving modes from Eco Pro to Comfort or Sport and see if it makes any difference.

 

My passengers confirm they get warm bottoms much faster than that.

And shouldnt be any reason for passenger seat to be slower than drivers seat

 

Yeah wondering if it's in the Eco Pro mode... known to heat slowly and cool real slowly too.

 

No, definitely has nothing to do with Eco mode. Also, the limits can be overridden by settings. Anyway, Eco mode does not make a difference between driver and passenger seats.

 

It depends how cold it is and how the seat heating is adjusted. If it is set to low then it might take a while before you can sense it when it is very cold. It also depends on your passenger. I mean, I normally don't want any, or very low heat for my bottom, but my wife can very well complain that it is too cold and she sets the heating to maximum for a short while if we start in very cold weather and the car is not preheated.

 

Have you checked the passenger side complaint settings?
If that's set too high, you'll get excessive noise from that side of the car regardless of any weather conditions.
Perhaps turning on the preconditioning 15 minutes before departure when you know that this passenger will be present would help.

 

I find that the seat heating is much more consistent if you turn off automatic climate. Probably won't help here, but maybe worth a try.

 

Coding can change the max temp per level on each individual seat. Does the seat get to the same temperature of yours eventually? If it doesn't get to the same final temp, then possibly recoding may correct the issue.

 

Keep in mind, the most likely issue here is the relative calibration of the butts in the seats, not the seats themselves.

Has OP ever sat in the passenger seat to let them see if the described issue is "above the seat" or the seat itself?

 

Face it, our heated seats are just plain weak. On the highest setting, they are not as hot (nor heat as quickly) as my X5 on the lowest of three settings 🫤
Yes it's less drain on the battery. Yes it's colder on yer a$$.