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1980 Mercedes-Benz 450SL 4.5L Fuel Pump Relay
Posted to European Electrical on 9/29/2026 4 Replies

Working out of the blue MB Factory/ Dealer repair manual, which is the schematic/ diagram I am referencing. (Will try to post pics of schematic) Car Date of MFG: 08/1980 Initial Symptoms/ Conditions: Car would not start (crank but no run), Windows go ...

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car Vehicle Data

1980 Mercedes-Benz 450SL

VIN 1070441206
Engine4.5 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFuel Injection
AffectedFuel Pump Relay
ConditionsContinuous Coil Triggering (Clicking)
Misc.Fully Optioned (Climate Control, Central Locks, Etc)
Open Help Request

car Vehicle Data

1980 Mercedes-Benz 450SL

VIN 1070441206
Engine4.5 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFuel Injection
AffectedFuel Pump Relay
ConditionsContinuous Coil Triggering (Clicking)
Misc.Fully Optioned (Climate Control, Central Locks, Etc)