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Old 05-15-2008, 01:45 PM
Join Date: Nov 2005
Location: North Georgia
Posts: 86
Trouble finding fuel pump relay. '91 190E 2.6

I have searched and read based on the symptoms of my problem and have a strange finding. All signs point to a bad fuel pump/kickdown relay. The MB part # is 002 545 52 05 and reads, 6Zyl.6550, min KVS Kickd. So, I bought one off eBay.

My problem is actually finding this ellusive relay to pop the new one in. Wisdom on this board puts it behind the battery near the OVP, ECU, and ABS computer. There, it ain't! Where else might I look? I know there is a stack of important bits under the instrument cluster down in the kick area but I'd like to have more info on that before I remove the knee pad and finish panels down there.

Anybody know for sure on a '91 190E 2.6?


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Old 05-15-2008, 04:47 PM
865sp300e's Avatar
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Join Date: Feb 2005
Location: Yardley, PA
Posts: 318
I think the Fuel Pump Relay is integrated with the MAS Control Unit on your car.
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Old 05-15-2008, 04:48 PM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
The 1990 & later 190E 2.6's use a MAS relay that controls about 5 different functions including the fuel pump.

That relay is much larger & has a KNOB on top to remove it.

IT is located behind the battery with the other computers.
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Old 07-30-2008, 07:54 AM
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Join Date: Jul 2008
Posts: 1
Does anybody know where is the fuel pump relay for a
1988 190E2.3 ?

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