2.6(M103) fuel filter location
Should be just to the left of your right rear wheel by gas tank. May be covered by a box-like plastic shroud held on by 3 bolts.
For a diyer, this task is more easily performed if you back the car up on ramps. You do not have to back up all the way, just enough to give you clearance to get underneath. Chock the front wheels after the car is on the ramps. Disconnect battery ground strap B4 you begin. The procedure is outlined in the Mercedes-Benz Maint. Manual 1981-1993. The maint. manual is part of the CD-Rom.
If you experience leakage after replacing the filter, snug down the mounting hardware some more and be sure to use new copper gaskets on both ends of the filter.
1991 300-SEL - Model 126
M103 - SOHC
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