I drove the M3 this past weekend and it wasn't until I was about the leave the office when I read Riswicks' blog about the failed A/C fan. CRAP! This thing has a dark leather interior, it gets hot quick and retains the heat. It was going to be an oven on wheels!
Not being completely aware of the afore mentioned problem I was cursing myself for picking the M3. Thankfully, as I left the garage, the fan sputtered back to life. Good thing too since it was fairly hot around town. It wasn't blowing super cold, but what I got out of it I was mighty thankful for.
But later that night the oil light came on. The tank was nearly empty anyways so I checked the the levels I filled up. The dip stick registered in the lower quarter of the normal range. I didn't add anything and the light was off as I drove away from the station.
But on Sunday it came back on. This light was getting annoying, but I'd rather resolve it than ignore it. I figured the level was getting low anyways and the sensor was probably picking up under spec levels as the oil sloshed about. A little top off wouldn't hurt, right?
A quarter quart did the trick. No light, plenty of cool air and I was a happy driver.
Scott Jacobs, Senior Photographer

joefrompa says:
11:57 AM, 08/ 4/08
I'm not sure how I feel about this entry...for one thing, I would love it if my car told me every time I was .25 quart low....
On the other hand, I really wouldn't want the light to stay on for ONLY that much low.
Random: I just did my 2nd oil change on my wife's 08 Legacy GT. I've decided that it has the most useless dipstick I've ever seen. I can not for the life of me get a good read on the thing, hot, cold, sitting, standing, jacked up, two wheels off the car, whatever. Can't do it.
I've wiped, re-inserted, wiped, re-inserted. No luck. (Keep it clean).
So a light like the one in the M3 would allow me to add 80% of the sump volume and then start topping off slowly.
Joe
subytrojan says:
12:32 PM, 08/ 4/08
Quarter liter, Scott. :o)
http://www.speedpro.cz/catalog/images/castrol_tws.jpg
redwoodaggie says:
04:05 PM, 08/ 4/08
As mentioned in the other post, replace that final stage resistor for the A/C issue. The low oil light doesn't come on when my E46 is that low, but that's about as low as I've ever seen it.
cjasis says:
08:18 AM, 08/ 5/08
At least you have a dipstick to check the oil. I just can't get used to checking my oil by a gauge in the dash of my 997S. It doesn't seem right.