If there are suspicions of a malfunction of the starter, it should be removed from the car and delivered to a specialized car workshop for a thorough check and refurbishment. In the vast majority of cases, the cause of the violation is the wear of the contact brushes. Replacement starter brushes, unlike alternator brushes, are readily available from automotive accessory stores. The brushes are fixed by soldering. Before agreeing to perform a major overhaul, consult the prices for a replacement starter.