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.
The 1988 Mercedes 300E is equipped with two fuel pumps to ensure reliable fuel delivery under varying driving conditions. The primary pump, located inside the fuel tank, draws fuel and sends it to the engine, while the secondary pump, usually located along the fuel line, helps maintain adequate pressure and flow, particularly during high-demand situations. This dual-pump system enhances performance, prevents starvation, and contributes to engine efficiency. Additionally, having two pumps provides a backup in case one fails, promoting reliability.
they should unless different brands.I always replace in sets,no just one.
The Mercedes 300E features both primary and secondary fuel pumps to ensure reliable fuel delivery and maintain optimal engine performance. The primary pump is responsible for drawing fuel from the tank and delivering it to the engine, while the secondary pump provides additional pressure and flow, particularly during high-demand situations. This dual-pump system enhances fuel efficiency, ensures consistent performance, and helps prevent issues such as vapor lock or fuel starvation. Additionally, having two pumps can improve redundancy, increasing reliability in case one pump fails.
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.
Just in front of the right rear wheel.
Air in the fuel line?? There is a filter in your tank that may need to be replaced.
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.
Near the right rear tire