prob been asked a million times already

[slideways]

I've seen this mentioned loadsa times already and the q gets asked but i can't see an answer. tried searching for an answer but can't seem to find it. how can u reset the service light on the dash.
also can anyone give me a reistance readin for the oil level sensor in a 91 325i sump, (3 wire model) don't want to buy one if its wiring. thanks in advance for your wisdom and guidance

[chu346]

Check this out. http://www.bmwe30.net/cgi-bin/datacgi/d ... Section=02

[TOURINGDADDY]

or u could just earth pin 7 with the ignition on

[slideways]

where is pin 7, is it in the engine bay in what looks like the diagnostics plug?

[chu346]

There is a black plug with a cap on in the engine bay. For m20 engines (2.0+2.5) it near the inlet manifold on the radiator side. For m40 engine (1.6+1.8 ) its on the bulkhead near the fuse box.
Look in the link above for pin 7 location in the plug.

[Brianmoooore]

As link above for the service lights.
Oil level sensor:
Static oil level sensor, pin 1, blue/purple is short circuit to earth pin (brown/orange) when oil level is full. Open circuit when low.
Dynamic oil level sensor, pin2, blue/white, is short circuit to earth pin when low and 1000 ohms to earth when full.

[Ritesh]

[img]http://C:\Documents%20and%20Settings\taankr\Desktop\sil.gif[/img]

Which one is PIN 7 on the cap (late model)?

I tried to use a jumper wire yesterday between the two red dots, as shown in the above URL, but my SI lights naver came on after the 3/4 second period...waited for longer but still no lights?

It says use a 'fused' wire? I was just using an ordinary piece of wire.

Might just try shorting PIN7 to the body now...if i can figure out which one is pin7?

[Brianmoooore]

It's marked on the socket, but not entirely obvioius which number applies to which pin.
No need to use a fuse (if you get the right pin), and shorting to ground is fine.
3/4 seconds is 3 to 4 seconds, not three quqrters of a second, and I would say it's more like 6 to 7 seconds.
If the service lights won't reset, or give invalid LED combinations, then the NiCd batteries on your SI board are probably dead.

[Ritesh]

Okay thanks.

Just another quick one, are we talking about the pins on the actual cap (the four pins)?

[Brianmoooore]

We are refering to the socket.

[Ritesh]

Nice one, thanks brian!

Will give it a go as soon as this pi$$in rain stops!

[slideways]

tried that worked a treat.
its the level sensor thats dead
dear?
what could i use to give 1000 ohms to tide me over get that fcukin light off!