It protects againstpregnancy for 5 years. But it is advisable to to take it out after 2 to 3 years. Give 'rest' to the uterus for 2 to 3 months. Till then usealternatemethod ofcontraception. Then reinsert the the above mentioned contraceptive device. Of course a new one. And please remember that 'no' method of contraception is 100 % effective. So if you have regular menses, not to worry about. But if periods are irregular, do pregnancy card test every 2 weeks after missed period. This is your additional watch on the system. If by chance you get pregnant, then it can be terminated with simple tablets. So need not worry about it.
to protect against radio interference
Yes, the coil does not affect a pregnancy test.
it is used to protect the motor
Sore breasts, lumps on nipples, tummy cramps
If you leave the copper IUD in too long, there are no potential health problems. If you leave a hormonal IUD like Mirena in too long, you may not be protected against pregnancy, but there are no other risks.
To protect them from minor predators.
rattle snakes coil and emit the hiss sound of its rattle. When they coil that is the position were they can do the jump to attack and bite injecting the venom.
Should be behind the glove box area against the firewall
You have an electrical short. It could (possibly) be a short internal to the coil but it's much more likely that a wire (somewhere between the ignition switch and the coil) has rubbed through against a bit of (grounded) metal. Look for any wire rubs especially near the coil and/or near the throttle lever.
Protects your toes from being stubbed or crushed. However, if, say, a 40,000 lbs. steel coil falls onto your feet, those steel toes aren't going to protect you. They have their limitations.
Here is a photo of the ignition coil. It is in the engine compartment against the fire wall. if you find the distributor with 4 wires going to the spark plugs, follow the distributor center wire which plugs into the ignition coil. A new coil is about $150. Good Luck. Sorry, the photo didn't work. Search at "http://www.gprparts.com/OEMParts/vw.asp" for a 1997 Jetta igition coil to see the photo
Concertina Coil is a combination of barbed & razor wires in the form of large coils. It plays the very important role to secure places like borders, military camps, railway stations & many more. If you protect your area with concertina coil then no any animals & human being enter your place without permission.