BMW Coupes and Sedans 1970-1988 Repair Guide

Ignition Coil

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See Figure 1



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Fig. Fig. 1: Early 2002 ignition coil. Notice the ballast resistor above the coil


WARNING
Ignition coils for breaker type systems are not interchangeable with coils for transistorized models. Doing so could seriously damage the vehicle's ignition and electrical systems.

REMOVAL & INSTALLATION



See Figures 2, 3, 4, 5 and 6

  1. Disconnect the negative battery cable.
  2.  
  3. Access the ignition coil in the engine compartment and remove the high tension wire. If it is difficult to remove, use a twisting motion, then attempt to remove.
  4.  

Do not remove the high tension wire by pulling on the wire. Remove by grasping only at the boot.



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Fig. Fig. 2: Remove the high tension wire, and coil cover, if equipped



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Fig. Fig. 3: Tag each wire for identification, then remove. Some wires are secured with nuts, while others have push-type connectors



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Fig. Fig. 4: Notice that on some coils, the connector ends are of different sizes to help ensure their correct installation



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Fig. Fig. 5: Loosen the hardware securing the bracket to the coil



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Fig. Fig. 6: When the bracket is loosened enough, slide the coil out

  1. Tag the remaining wires connected to the coil. When properly tagged, remove and tuck out of the way.
  2.  
  3. Remove the retaining bolts securing the coil bracket to the vehicle body and remove the coil.
  4.  
  5. To install, reverse the procedures. Make sure the wire connections are correct and secure.
  6.  

 
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