one fuel pump.
Why are there so many unanswered questions?
There are two fuel pumps in a Mercedes 300E
The fuel pump relay on a 1988 Mercedes-Benz 300E is located on the passenger side, near the firewall, by the battery. Mercedes-Benz was founded in 1926.
It's near the right rear tire.
they should unless different brands.I always replace in sets,no just one.
DexIII/Merc
The 1989 Mercedes Benz 300E came equipped in a 3.0L L6 engine. It has a canister type fuel filter which will be located underneath the car and forward of the fuel tank in the fuel line. The OE replacement fuel filter is Fram #G3737.
Air in the fuel line?? There is a filter in your tank that may need to be replaced.
Just in front of the right rear wheel.
On the passenger side in front of the rear wheel. It is cover with a black cover. Remove it and there is the fuel filter along with the two fuel pumps.
Let me now the VIN number and I tell you.
Between the rear seat back and the trunk.
Near the right rear tire