thanks for the reponse. I plan on checking the speedo out by using a
pace car with a known good speedo. As to the brake lights, every car I
have ever had or seen, the brake and other lights in general always
worked without the ignition being on. The lights have always been an
indepentant system from the ignition, at least on US cars. If someone
is on the side of the road or the ignition fails and you hit the
brakes, they should work as well as the brake lights. It is a safety
issue. I havn't checked it out yet, but this could mean that the em
flashers will not work if the ignition is off.
On Fri, 26 May 2006 12:22:02 -0400, "Tom K."
As the emergency flashers are independent of the ignition on my Z4, I'll bet
they function the same way on your 7 - as well as on most other cars.
(Although I just checked and they don't work without the ignition on my
I'd say there's just as much chance of the brake light circuit failing as
the ignition - more on a BMW where the stop light switch isn't that
Flashers working with the ignition off would be a pain too - all to easy
to leave the car with the indicator switch to one side and come back to a
flat battery. The hazards work without the ignition on, though, for
*Verbs HAS to agree with their subjects *
Dave Plowman email@example.com London SW
You'd be better off using a GPS if you want to know the actual speed.
If you're just trying to acertain that your speedo is "normal" than you
can compare it as you say.
As to the brake lights, every car I
I don't get it. Yes, I've noticed that the brake lights worked without
the key on some US made cars , but I fail to see how this is a "safety
issue". To begin with, the ignition failing is a very rare occurrance.
And if/when it does, it would be when you attempt to start the car,
not while it is running down the road. In the rare circumstance that
the ignition switch did fail while underway, your main problem would be
lack of power assist to the brakes and steering, not whether the brake
lights were coming on...
You will find the emergency flashers (aka hazards) work just fine with
the key removed.
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