LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mercedes Benz >> 1976 >> 450SE >> Repair and Diagnosis >> Engine Performance >> Ignition System >> BOSCH Electronic Ignition >> Testing >> Resistor Resistance Check
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Resistor Resistance Check

Using an ohmmeter set to low scale, check resistance of each resistor in primary circuit. See RESISTOR SPECIFICATIONS table . Most models use 2 ballast resistors. Some manufacturers use resistor wires instead of ballast resistors.

RESISTOR SPECIFICATIONS

Application Resistance (Ohms)
Audi 1.0
BMW 0.4-0.6
Fiat X1/9 & Strada .85-.95
Mercedes-Benz .35-.45 and.55-.65
Peugeot 0.5
Porsche
  924 1.0 and 1.5
  928 .35-.45 and.55-.65
Saab
  Starting 0.6
  Running 1.0
Volvo 1.0
Fig 1: Bosch Electronic Ignition System Wiring Diagram (Typical)
G09350931Courtesy of NOT AVAILABLE