Sorry about the previous message...any tips on replacing the post cat o2 sensors on an 03 330ci...figure it is similar to your experience....looks like a bear of a job...no room, cramped, etc..thanks...email@example.com
Manolito, a few quick qestions about the serpentine belt tensioner, sorry this is thowing me off so much.You're the only one who'se recognized this tensioner so far and appreciate your help.
Do I simply untighter or remove the top offset bolt from the pulley and this loosens the tension, or do I need to rotate the pully itself somehow to loosen the tension? Don't understand what you mean by a lug on the back of the pulley, I can't see anything. Not sure either how to "re-tension" once I've got the new belt on.
Is the bottom pulley a tensioner also? do I need to mess with it, or can I just let it be.
Thanks for any assistance, Rob
thanks for your advise on the cooling thats going wrong with my 325is. I changed the water pump and the thermostat last month on it. Just weird that it tried to overheat and was pouring out coolant in the bottom. I have drove it since that after topping it off and hasn't over heated again. Still puzzeled why it did that the other day
I found the wiring diagram in the Instrument panel ELE-166 of the Bentley manual. Thanks for sending me in this direction. The drawing seems to indicate that there is a small winding in the sensor. Do you know how these sensors work?
The windings in the sensor, when I measure them with an ohm meter they have about 1/10th of an ohm resistance, very small!!. Both the front and rear are the same.
What about the pads wearing, triggers the sensor to open its circuit?