When I tried fastlane,that seems to be the case.I was thinking about getting a spare relay but this combo MAS/Fprelay seems too expensive over 340 $
PART NUMBER SEARCH RESULTS WITH PRICES

Vehicle 1992 Mercedes Benz 300E 2.6
Part: Fuel Pump Relay

Note: Remanufactured
MAS Control Unit
Optional with 012 545 46 32. This unit incorporates the fuel pump relay.



Product Brand Availability Retail Our Price

P2097-59093 MAS Control Unit Programa IN STOCK $435.65 $346.07

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Tom 2010 C250 4-matic Sport (Canada)