Thread: Fuel pump relay
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Old 01-15-2001, 06:31 PM
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Crowe Crowe is offline
Benz Enthusiast
Join Date: Apr 2000
Location: Atlanta, GA
Posts: 366
The fuel pump relay behind the battery on my 88' 300E has a small black plastic knob (smaller than a dime) on the top corner of the relay. What is the function of this small knob? It is broken off on mine but does not appear to have any effect, but I want to make sure it is not a problem.
  • 2001 E320
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