What interface you are using, are pins 7 and 8 connected together?

These with metal sump it's quite easy to check by hand that temp is in the required 30-50 C range.

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E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
E70 X5 40d -12 M-Sport Space grey