Electrical System Specifications (Opel Omega A)

For later model years, see the Appendix at the end of the Manual (Section 13).

System type - 12 volt with negative ground terminal

Battery - Acid, maintenance-free, capacity 44 Ah

Generator - Bosch

Type - Variable field, with voltage regulator

Output current (maximum):

• Engine 18SV - 55 or 70 A
• Motor 18SEH and 20SE - 70 A

Output voltage - 13.8-14.8 V (at 2000-2500 rpm)

Minimum diameter of generator rings - 31.5 mm

Minimum brush length: 5.0 mm

Rotor winding resistance is 3.4 Ohm

Stator winding resistance - 0.14 Ohm

Starter - Bosch (0 001 108 047)

Type - Pre-engagement

Minimum brush length 4.5 mm

Pull-in current (no load) — 75A at 2900 rpm

Working current (in a hooked state):

• At 12 V - 475-600 A
• At 14 V - 625-800 A

Minimum commutator diameter: 31.2 mm

Fuses (typical)

Text copied from an online resource [OPELBOOK.ru]

Windscreen wipers — Champion X-4803

Incandescent lamps (typical)

Purpose, power (W)

• Headlight - high/low beam - 60/55
• Parking light - 5
• Turn signal lamp (front and back) — 21
• Stop light - 21
• Rear fog light - 21
• Tail light - 10
• License plate light - 5 or 10
• Reverse light - 21

Tightening torques, Nm

• Generator suspension - 25
• Starter - 45