My '92 E34 525 was fitted with a driver's door lock heater in case of a
frozen lock. Operated by lifting the outside door handle. No factory
fitted alarm on that car - and operating it set off the aftermarket one.
So actually quite useful if a thief tried checking the door was locked.
How common where these - and how do modern ones (if fitted) work?
Just curious as it came up on another group.
*It is wrong to ever split an infinitive *
Dave Plowman firstname.lastname@example.org London SW
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