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I haven't found any examples of a similar issue on the forum. My wife reports that she turns on the seat heater to the highest setting, and after precisely 8 minutes, it drops to the next setting, and 8 minutes later, to the lowest setting. She's not telling me that the seat isn't getting warm. So I'm suspecting that this is a bad thermostat.
She can adjust the setting back up to the highest, but it just drops again on its own.
Aston Martin Vantage, GLE 43 AMG, Volvo XC60, BMW X1 35i, Ram 1500, BMW Z4 35i
Originally Posted by gshockxcc
I haven't found any examples of a similar issue on the forum. My wife reports that she turns on the seat heater to the highest setting, and after precisely 8 minutes, it drops to the next setting, and 8 minutes later, to the lowest setting. She's not telling me that the seat isn't getting warm. So I'm suspecting that this is a bad thermostat.
She can adjust the setting back up to the highest, but it just drops again on its own.
Has anyone had an issue with this?
this is how it's supposed to work. Read your owners manual
The three red indicator lamps in the button indicate the heating level you have selected.
The system automatically switches down from level 3 to level 2 after approximately eight minutes.
The system automatically switches down from level 2 to level 1 after approximately ten minutes.
The system automatically switches off approximately 35 minutes after it is set to level 1
Really?! That seems strange. I have never seen any other vehicle that controls the seats that way.
Fairly common on modern cars. Memory is fading, but I believe all the cars I had in the last 10-15 years did this, not just MB. The automatic timers prevent the heating elements from wearing out over time. It also reduces the drying out of the leather causing it to crack over time, especially if not conditioned regularly, and while your wife doesn't have this problem, it's not particularly healthy to cook your ******** .
Last edited by superswiss; 11-27-2023 at 04:40 PM.
11-22-2023, 01:00 PM
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