Note: Please refer to the warnings contained in paragraph 1 this chapter before you begin.
1. If the starter refuses to work when the ignition key is turned to the appropriate position, there may be many reasons for this.
- a) The battery is "dead".
- b) The electrical connections for the movement of the required current from the battery through the starter, to the car body - back to the battery are broken.
- c) The pull-in relay is faulty.
- d) The starter motor is faulty - electrically or mechanically.
2. To check the battery, turn on the headlights. If they dim after a few seconds, the battery is discharged. Charge or replace the battery (see paragraph 2).If the headlights are bright, turn on the starter and watch the lights. If the light dims, this indicates that the electric current is reaching the starter motor, which means that the fault is hidden in the starter. If the headlights continue to burn brightly (and the click of the starter relay is not heard), this indicates a fault in the circuit or the starter relay - see the following points. If the starter motor turns the engine weakly, but the battery is in good condition, this indicates a fault in the starter motor or increased resistance in the circuit.
3. If you suspect a faulty circuit, disconnect the battery cables (the wire going to the body is included), wiring of the retractor relay and a thick wire from the engine block to the body. Carefully clean all connections and restore them. then use a voltmeter or a light bulb to check for the presence of full battery voltage on the positive wire to the retractor relay and "ring" the negative wire. Lubricate the battery terminals with grease to prevent corrosion - the whole problem is in bad contacts.
4. If the battery and all contacts are in good condition, check the circuit by disconnecting the wire from the retractor relay. Connect a test lamp between the removed wire and "ground" - clean metal on the body or the negative terminal of the battery and make sure that the wire is intact. when you turn on the ignition. If the test lamp lights, then the circuit is intact, if not, check the circuit as described in chapter 12.
5. The contacts of the retractor relay can be checked by connecting a voltmeter or a test lamp between the positive wire where it is connected to the starter motor and the "ground". If the starter is turned on, the lamp should light or there should be a corresponding voltage on the voltmeter indicator. If not, the retractor relay is faulty and should be replaced.
6. If the circuit and the retractor relay are in good condition, the starter motor may be faulty. It is better to give it to specialists for repair, but first inquire about the cost of repair, it may be cheaper to buy a new or refurbished starter.
The original version is on the portal AudiManual.ru
