Volkswagen is a classic brand known for producing cars with great fuel economy. The Volkswagen Jetta sedan offers smooth rides, with a sizeable trunk space. However, this car comes with its fair share of technical problems, one of which is the Volkswagen ignition coil failure.
The essence of an ignition coil is to ignite the fuel, and thus start up the vehicle via voltage transmission. It is essentially a transformer that converts the battery’s low power supply to a high voltage needed to jump-start the spark plug.
Potential signs that you have a defective ignition coil may include one or more of the following: startup problems: loud engine cranks, backfires, engine hesitation, stalling, decreased fuel economy and increased gas emissions. A more hazardous sign is an engine fire. Paying no heed to these indicators puts you in a vulnerable position and will put your car at risk for more damage.
The main reason why ignition coils fail prematurely is because of a worn-out spark plug ignition cable. An open coil wire, voltage overload, damaged or bad plug wires and spark plugs, heat and vibration are some other factors that could seriously damage your ignition coil.
When you bring your vehicle to us suspecting a defunct ignition coil, we first carry out a preliminary investigation of the causative factor. Our diagnosis involves checking for misfires and checking to see if this indeed is caused by the spark plug, as misfires can be caused by a host of other things. Next, we remove the spark plug and inspect it, checking for dirt buildup and oil deposits. Our evaluation would not be complete without a voltage test on the ignition coil.
Usually, the results from this evaluation will warrant a replacement of the ignition coil. This problem is a relatively common technical issue and should not be allowed to persist so you don’t wear out your engine.
See a hands-on video of our professional team at European Service Center working on a Volkswagen Jetta