Quote:
Originally Posted by wpoll
The lights either use the front level sensor (if fitted) or... the front level sensor, as if no self-levelling suspension is fitted, BMW still fit at least one front level sensor for the lighting. 
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I wasn't clear on the past-tense nature of my statement. I thought I had read the headlight aim used a rear sensor but I realised clearly that's not (perhaps in all cases) the case. Subsequently I've seen the sensor on my wife's right front wheel I think I had to disconnect while changing the front bearing.