Product Overview
BOSCH Coil Assembly Ignition Front 0221604115-uae
MakeModelYearEngineVOLKSWAGENPASSAT20062.0 I4 FWDVOLKSWAGENPASSAT20062.0TC I4 FWDVOLKSWAGENPASSAT20072.0TC I4 FWDVOLKSWAGENPASSAT20082.0TC I4 FWDVOLKSWAGENPASSAT20092.0TC I4 FWDVOLKSWAGENPASSAT20102.0TC I4 FWDVOLKSWAGENPASSAT20112.0TC I4 FWDVOLKSWAGENPASSAT20081.8TC I4 FWDVOLKSWAGENPASSAT20091.8TC I4 FWDVOLKSWAGENPASSAT20101.8TC I4 FWDVOLKSWAGENPASSAT20111.8TC I4 FWDVOLKSWAGENPASSAT20122.5 I5 FWDVOLKSWAGENPASSAT20132.5 I5 FWDVOLKSWAGENPASSAT20142.5 I5 FWDVOLKSWAGENPASSAT20152.5 I5 FWDVOLKSWAGENPASSAT20162.5 I5 FWDVOLKSWAGENPASSAT20172.5 I5 FWDVOLKSWAGENPASSAT20182.5 I5 FWDVOLKSWAGENPASSAT20192.5 I5 FWDVOLKSWAGENPASSAT20202.5 I5 FWDVOLKSWAGENPASSAT20212.5 I5 FWDVOLKSWAGENPASSAT20222.5 I5 FWDVOLKSWAGENTIGUAN20082.0TC I4 4WDVOLKSWAGENTIGUAN20092.0TC I4 4WDVOLKSWAGENTIGUAN20102.0TC I4 4WDVOLKSWAGENTIGUAN20112.0TC I4 4WDVOLKSWAGENTIGUAN20122.0TC I4 4WDVOLKSWAGENTIGUAN20132.0TC I4 4WDVOLKSWAGENTIGUAN20142.0TC I4 4WDVOLKSWAGENTIGUAN20152.0TC I4 4WDVOLKSWAGENTIGUAN20162.0TC I4 4WDVOLKSWAGENGOLF GTI20092.0TC I4 FWDVOLKSWAGENGOLF GTI20102.0TC I4 FWDVOLKSWAGENGOLF GTI20112.0TC I4 FWDVOLKSWAGENGOLF GTI20122.0TC I4 FWDVOLKSWAGENGOLF GTI20132.0TC I4 FWDVOLKSWAGENTIGUAN20172.0TC I4 4WDVOLKSWAGENTIGUAN20182.0TC I4 4WDVOLKSWAGENTIGUAN20192.0TC I4 4WDAUDIRS Q320162.5TC I5 4WDAUDIRS Q320172.5TC I5 4WDAUDIRS Q320182.5TC I5 4WDAUDIA620092.0TC I4 FWDAUDIA620102.0TC I4 FWDAUDIA620112.0TC I4 FWDAUDIA620122.0TC I4 FWDAUDIA620132.0TC I4 FWDAUDIA620142.0TC I4 FWDAUDIA620152.0TC I4 FWDAUDIQ320122.0TC I4 4WDAUDIQ320132.0TC I4 4WDAUDIQ320142.0TC I4 4WDAUDIQ320152.0TC I4 4WDAUDIQ320162.0TC I4 4WDAUDIQ320172.0TC I4 4WDAUDIQ320182.0TC I4 4WDAUDIQ320192.0TC I4 4WDAUDIQ520092.0TC I4 4WDAUDIQ520102.0TC I4 4WDAUDIQ520112.0TC I4 4WDAUDIQ520122.0TC I4 4WDAUDIRS 520134.2 V8 4WDAUDIRS 520144.2 V8 4WDAUDIRS 520154.2 V8 4WDAUDIRS 520164.2 V8 4WD
Ignition coils provide the spark that fires each spark plug in an engine. The ignition coil takes the 12 volts from the battery and converts it to as much as 45,000 volts, supplying enough voltage to create a spark. Ignition coils are either linked to the plugs using spark plug wires or cables, or each coil is directly connected on top of each spark plug, which is known as a coil-on-plug (COP) system. COP ignition systems are found on most of today's vehicles with one ignition coil per cylinder. Some older vehicles use a coil pack or single ignition coil to fire all spark plugs.
Before the advent of computer control for ignition, most vehicles still used a mechanical distributor and plug wires to manage spark for each cylinder. The voltage for the spark came from an ignition coil mounted off to one side from the distributor. Unlike a transformer that raises or lowers voltage, an ignition coil uses oscillation of a magnetic field to produce voltage and is comprised of layers of copper windings separated by layers of oiled paper for insulation.
Problems with the ignition coil can arise from worn, eroded spark plugs that are putting too much of a demand for voltage on the whole system. If the coil is starting to fail, it can manifest as backfiring, poor performance and poor power from a weak spark. Shop Advance for ignition coils, modern coil-on-plug coils and even distributorless coils (a transitional system you'll find on some cars from the 90s and 00s).
Learn more about the different types of ignition systems and how they work.
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