BMW 7 Series: Ignition Coil
NOTES ON CHECKING IGNITION SYSTEM
Troubleshooting
- Fault in fuel injection system
- Spark plug faults
- Ignition coil faults
- Further fault patterns with evaluation
- Additional fault notes for troubleshooting
Oscillograms
- Normal oscillogram
- Oscillograms of ignition coils from different manufacturers
Check
- Secondary signal for stationary ignition distribution
REPLACING IGNITION COILS (N63)
Necessary preliminary tasks
- Read out fault memory of DME control unit.
- Check stored error/fault messages.
- Switch off ignition.
- Remove left and right INTAKE FILTER HOUSINGS.
IMPORTANT: Ignition coils must not be fouled by fuel.
The resistance of the silicone material is reduced significantly by contact with fuel, which may cause the ignition coil to fail!
Unlock plug catch (1) on ignition coil (2) and disconnect plug.
Pull ignition coil (2) up and out.
This procedure is applicable to all ignition coils.
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Fig. 18: Pulling Ignition Coil
Installation: Check that rubber seal of ignition coil (1) is correctly seated.
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Fig. 19: Installing Rubber Seal Of Ignition Coil
Installation: Push plug (1) with plug catch (2) open onto ignition coil.
Carefully close plug catch (2) in direction of arrow.
The plug catch must snap into place without great effort.
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Fig. 20: Pushing Plug With Plug Catch Onto Ignition Coil
NOTE: Now clear the fault memory.
READ NEXT:
Coding Control Module (DME/DDE)
Switch off ignition.
Connect MoDiC or DIS/GT1 Tester.
Switch on ignition.
Select "Coding" program.
For subsequent procedure, follow instructions in MoDiC or DIS/GT1 Tester.
Carry out adjustment of
Removing And Installing/Replacing Electronics Box
IMPORTANT: Read and comply with notes on protection against electrostatic
damage (ESD
protection).
NOTE: Follow instructions for removing and installing CONTROL UNITS !
Necessary preliminary work
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SEE MORE:
Steptronic transmission- Manual mode M/S
Concept
Manual gear-shifting is possible in manual mode.
Activating manual mode
Press the selector lever to the left from selector
lever position D, arrow 1.
Push the selector lever forward or pull it
backward, arrows 2.
Manual mode becomes active and the gear is
changed.
The engaged gear
Use Of Materials In Outer Skin
The following illustration is a schematic representation of all the body
variants.
Apply this illustration to the relevant vehicle.
Fig. 76: Identifying Vehicle Components
All components not listed in the table below are composed of established
sheet steel qualities.
MATERIAL CHART
VEHICLE IDE
