Vehicle ignition system Audi 100 C4
Ignition system device
Elements of the VEZ ignition system 1 Control unit 2 Air pipeline 3 Plug 4 Terminal 5 Tip 6 Terminal 15 (+) 7 Ground cable 8 Ignition coil 9 Cable 10 Tip 11...
Elements of the VEZ ignition system 1 Control unit 2 Air pipeline 3 Plug 4 Terminal 5 Tip 6 Terminal 15 (+) 7 Ground cable 8 Ignition coil 9 Cable 10 Tip 11...
Electronic ignition control
Monomotronic and KE-Motronic Mechanical and vacuum ignition adjustment ensures optimum combustion of the working mixture only within narrow limits. With the...
Monomotronic and KE-Motronic Mechanical and vacuum ignition adjustment ensures optimum combustion of the working mixture only within narrow limits. With the...
Knock control
KE-Motronic Detonation combustion due to too early ignition damages the engine. The consequence is overheating, damage to bearings and pistons. On the other...
KE-Motronic Detonation combustion due to too early ignition damages the engine. The consequence is overheating, damage to bearings and pistons. On the other...
Precautions when working with ignition
Even in thin wires to the ignition coil, voltages of 100 V with high current strength may appear, not to mention high voltage, which can reach values of more...
Even in thin wires to the ignition coil, voltages of 100 V with high current strength may appear, not to mention high voltage, which can reach values of more...
Troubleshooting the ignition system
The Monomotronic and KE-Motronic control units can recognize and store faults that occur during engine operation using a self-diagnosis system. The test...
The Monomotronic and KE-Motronic control units can recognize and store faults that occur during engine operation using a self-diagnosis system. The test...
Ignition coil
KE-Motronic The primary current is supplied to terminal 15 of the coil. Through the primary winding of the ignition coil, voltage from its terminal 1/- is...
KE-Motronic The primary current is supplied to terminal 15 of the coil. Through the primary winding of the ignition coil, voltage from its terminal 1/- is...
Checking the switch
Before checking the switch, you need to make sure that the ignition coil is in order. Remove the wire to the intake manifold heater and, if available, to the...
Before checking the switch, you need to make sure that the ignition coil is in order. Remove the wire to the intake manifold heater and, if available, to the...
Testing the KE-Motronic system's powerful output stage
The test is carried out under the assumption that the ignition coil is faulty. Remove the plug from the output stage. Connect the voltmeter to the terminals of...
The test is carried out under the assumption that the ignition coil is faulty. Remove the plug from the output stage. Connect the voltmeter to the terminals of...
Ignition transformer
Monotronic This part combines the switch and the powerful final stage of the transistor ignition with the ignition coil: the combination in one housing...
Monotronic This part combines the switch and the powerful final stage of the transistor ignition with the ignition coil: the combination in one housing...
Ignition distributor
Distributor parts 1 Distributor housing 2 Fastening clamp 3 Plug connection 4 Hall's Knight 5 Rotor with hood 6 Vacuum chamber (only with mechanical...
Distributor parts 1 Distributor housing 2 Fastening clamp 3 Plug connection 4 Hall's Knight 5 Rotor with hood 6 Vacuum chamber (only with mechanical...
Troubleshooting Ignition Timing Systems
Checking the centrifugal regulator Connect the strobe light. Remove the vacuum hose from the distributor. Start the engine. Direct the strobe lamp to the...
Checking the centrifugal regulator Connect the strobe light. Remove the vacuum hose from the distributor. Start the engine. Direct the strobe lamp to the...
Adjusting ignition timing and knock sensor of the KE-Motronic system
In this case, ignition and knock sensor adjustment is performed via the diagnostic system memory. There are no other control options. Sometimes a faulty knock...
In this case, ignition and knock sensor adjustment is performed via the diagnostic system memory. There are no other control options. Sometimes a faulty knock...
Digital stabilization of idle speed of the KE-Motronic system
The KE-Motronic control units have a digital idle stabilization, or DLS for short. This means that the transmitted signal is processed digitally. The...
The KE-Motronic control units have a digital idle stabilization, or DLS for short. This means that the transmitted signal is processed digitally. The...
High voltage wire
Checking the high voltage wire Check if the wires are tightly seated in the distributor cap. They can be pushed out when air is directed and cause the engine...
Checking the high voltage wire Check if the wires are tightly seated in the distributor cap. They can be pushed out when air is directed and cause the engine...
Firing order
For the engine to run smoothly, the cylinders must fire in a certain sequence one after another. In accordance with the firing order, the wires in the...
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For the engine to run smoothly, the cylinders must fire in a certain sequence one after another. In accordance with the firing order, the wires in the...
There is 1 comment
Replacing spark plugs
Although spark plug replacement is recommended every 300 km, it is recommended to check at shorter intervals. Removal spark plugs Grasp the spark plug...
Although spark plug replacement is recommended every 300 km, it is recommended to check at shorter intervals. Removal spark plugs Grasp the spark plug...
Checking the ignition timing (advance angle)
The ignition timing can be adjusted with electronic ignition systems only due to wear of the distributor shaft. Despite this, it should be checked periodically...
The ignition timing can be adjusted with electronic ignition systems only due to wear of the distributor shaft. Despite this, it should be checked periodically...
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