Mercedes R107 Transistorized Ignition Control Module OEM 000 545 76 32
The transistorized ignition control module regulates primary circuit current switching for the ignition coil. It is framed strictly as-is for diagnostics, electrical troubleshooting, component parts, or as a rebuildable core for an internal circuit overhaul. The cast-aluminum housing shows typical age-related surface oxidation and weathering, but the mounting ears are intact and the two primary lower multi-pin connection sockets are physically sound without crushed pin alignment grids. Vintage Bosch ignition modules handle high electrical current transitions and suffer from internal transistor breakdown due to decades of engine bay thermal cycling. Moisture intrusion or dry solder fractures across the inner mainboard will trigger a sudden complete loss of spark, intermittent engine cutting when hot, hard cold starting, or severe ignition backfiring that drops the vehicle into a permanent crank-no-start failure state. &####128295; The Part Fix. Because a faulty primary ignition coil or bad ballast resistors can quickly overload and destroy a replacement control box, it is vital to measure primary/secondary coil resistance parameters and verify target circuit values before connecting this replacement module to the engine harness. Alternative Layout: 0 227 100 001. Mercedes-Benz OE Part Number Cross-Reference: A0005457632 / A 000 545 76 32. Alternative Suffix Supercession: 0227100001B / 0227100001A. Production Variant Identifier: Transistorized Ignition (TSZ) Module. Socket Configuration: Dual Multipin Terminal Plugs.
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