When hardening and fragility of high voltage wires, they must be replaced with new ones. For six-cylinder engines, ready-made wires are sold, complete with tips. For four- and five-cylinder engines, these wires are sold as a measured product, for which it is also necessary to purchase brass terminals and fasten lugs with an interference suppression effect.
Attention! «Leaky» high voltage wires are easy to recognize if you open the hood at night. On such a wire, spark discharges will be visible. Weak currents running in the form of lightning along the wires can be ignored.
Do not use any high voltage spark plug wire lugs on AUDI vehicles. Appropriate tips should have an internal resistance of 4-6 kOhm.
This requirement also applies to anti-interference tips attached to the distributor and ignition coil. These tips should have an internal resistance of 0.6-1.4 kOhm.
The distributor slider has a strictly regulated resistance that does not interfere with the reception of radio programs and is 0.6-1.4 kOhm. The slider is marked «R1».
Attention! If constantly or in wet weather one of the engine cylinders does not work, then, as a rule, the reason for this is a defective spark plug tip. This results in spark flashover between the metal of the tip and the spark plug electrode, breaking through the insulating material of the tip. Such a tip defect is not always detectable. For verification, it is recommended to replace the suspected defective tip with a known good one. If such a malfunction occurs on the way, we recommend removing the metal cap of the spark plug tip.
High-voltage wires are connected to the ignition distributor in accordance with the order of operation of the cylinders (see illustrations).
If, with the cover of the ignition distributor removed, the slider plate faces the notch on the distributor housing, then the piston of cylinder No. 1 is at TDC.
The order of operation of the cylinders is as follows:
- four-cylinder engines: 1-3-4-2. Slider rotates to the right (clockwise).
- five-cylinder engine: 1-2-4-5-3. Slider rotates to the right (clockwise).
- six-cylinder engines: 1-4-3-6-2-5. The ignition distributor is missing. Connecting the wires to the ignition coils corresponds to the location of the cylinders.
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