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rommelrules
08-11-2005, 09:08 AM
OK, I'm double lazy-- I can't be bothered to read the manual right now,
and I don't want to sif through the hundred threads with their corresponding
1000 posts if I were to use the "search" function.
I'd appreciate a quick and straight answer to this question:

Why is it that my warm up RPM lights have all gone out when my oil temp indicator
has *barely* budged? I never get on it until my oil temp is nice and warm,
but what's the point of having these warm up lights then? Is it just some cute gimmik?

I live at the top of a hill, and by the time I'm at the bottom in the morning
(read, I'm barely accelerating and just letting the car roll down) the lights have gone out.
This takes all of 3 or 4 minutes...

doeboy
08-11-2005, 10:56 AM
IIRC.... They're linked to the water temp... and if it's using the same buffered signal the stupid water temp gauge uses... it will be indicating "normal" waaay early. You're right in waiting for the actual oil temp to come up before opening her up.

Pinecone
08-12-2005, 02:29 AM
No it is hooked to the oil temp.

And what it is saying is that the oil needs to be somewhat warm, but not fully warmed up before you get on it.

Considering that this is one of the first cars with such a feature and that the vast majority of people get on it hard leaving their driveway and get pretty good life out of cars, I don't see the big deal. :)

bimmerguy
08-12-2005, 06:23 AM
I think its a good idea to warm up the erl before going into launch mode lol.

What annoys me is having Yellow and Red Rpm lights always on, I keep thinking its a warning light.

It would be nice to be able to turn down the brightness.

doeboy
08-12-2005, 06:43 PM
No it is hooked to the oil temp.

And what it is saying is that the oil needs to be somewhat warm, but not fully warmed up before you get on it.

Considering that this is one of the first cars with such a feature and that the vast majority of people get on it hard leaving their driveway and get pretty good life out of cars, I don't see the big deal. :)

:doh: you're right... I must've missed your other replies previously... oops

I also happened across this, which should help explain the lights.... :)

http://www.unofficialbmw.com/images/s54oiltemp.jpg

rommelrules
08-12-2005, 07:53 PM
Thanks for the replies. I can see it's actually not just a cute gimmick.
However, there is no way I'm going to rev the car anywhere past 3000 RPM's
when the oil temp is still reading 120, no matter what the RPM's lights say.

But then again, what do I know? I'm sure BMW's engineers know what's best.
Still don't know really what to think...

doeboy
08-12-2005, 10:24 PM
Thanks for the replies. I can see it's actually not just a cute gimmick.
However, there is no way I'm going to rev the car anywhere past 3000 RPM's
when the oil temp is still reading 120, no matter what the RPM's lights say.

But then again, what do I know? I'm sure BMW's engineers know what's best.
Still don't know really what to think...

Do whatever you're comfortable with.... if you don't feel like reving higher until later... then do it that way.... if it doesn't bother you, rev away... :)

Pinecone
08-14-2005, 02:41 PM
M Roadster manual says not above 4500 until 140 on the oil temp. Which is not far out of line with what the wamr up lights say.

And running at less than 3K PRM and lugging hte engine with cold oil is not a good idea either.

What did you do before you had a car with an oil temp guage?