Fuel tank: Difference between revisions

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The fuel return flow stream flows out of the return flow nozzle (80/17) into the splash bolw at a high velocity when the fuel pump
The fuel return flow stream flows out of the return flow nozzle (80/17) into the splash bolw at a high velocity when the fuel pump
is operated. As a result, the fuel around the return flow nozzle (80/17) is also entrained and carried into the splash bowl.
is operated. As a result, the fuel around the return flow nozzle (80/17) is also entrained and carried into the splash bowl.
== Fuel tank pressure sensor (USA) ==
<!-- GF47.30-P-4032L, Fuel tank pressure sensor location/task/function, 10.7.96
MODEL 129 with ENGINE 104.943 /991 as of 1.8.96, 112.923 /943, 113.961, 119.982, 120.983 with CODE (494) USA version
MODEL 140 with ENGINE 104.944 /994 as of 1.8.96, 119.981 /980, 120.982 with CODE (494) USA version
MODEL 163 with ENGINE 112.942 /970, 113.942 /965 with CODE (494) USA version
MODEL 170 with ENGINE 111.943 /973 /983, 112.947 with CODE (494) USA version
MODEL 202 with ENGINE 104.941 as of 1.8.96, 111.921 as of 1.9.98, 111.974, 111.975 as of 1.8.96, 111.944 /945, 112.910 /920 with CODE (494) USA version
MODEL 203 with ENGINE 111.951 /955, 112.912 /916 /946 /953 with CODE (494) USA version up to Model Year 8
MODEL 208 with ENGINE 111.944 /945 /975, 112.940, 113.943 with CODE (494) USA version
MODEL 209 with ENGINE 112.912 /955, 113.968 with CODE (494) USA version
MODEL 210 with ENGINE 104.995, 111.942 as of 1.9.98, 111.947, 112.911 /914 /921 /941, 113.940, 119.985 /980 with CODE (494) USA version
MODEL 215 with ENGINE 113.960, 137.970 with CODE (494) USA version
MODEL 220 with ENGINE 112.922 /944 /972 /975, 113.941 /948 /960 /966, 137.970 with CODE (494) USA version
MODEL 230 with ENGINE 112.973, 113.963 with CODE (494) USA version up to Model Year 8
MODEL 211 with ENGINE 112.913 /917 /949 /954, 113.967 /969 with CODE (494) USA version
-->
{|
|[[File:W220_fuel_tank_pressure_sensor.png|400px]]
|
Shown on model 210:
* B4 - Fuel gage sensor
* B4/3 - Fuel tank pressure sensor
|}
''The fuel tank pressure sensor is built into the hausing of the fuel gauge.''
The task for the fuel tank pressure sensor is detecting the internal pressure of the fuel tank for the leak test of the fuel system.
The output signal depends on the pressure inside the tank and is transmitted to the engine control unit.

Revision as of 17:53, 29 September 2021

Fuel tank

W220 has fuel tank (A2204707601) with 88 liter (23 galon) volume, unless vehicle has option code 282 (SKI-BAG) or 308 (REFRIGERATOR IN REAR) in which case the fuel tank (A2204707701) has value of 78 liters (20 galons).

Fuel tank with attachment parts as in EPC.

Fuel tank (88l)

A2204707601 (top).
A2204707601 (bottom).

Fuel tank (78l)

A2204707701 (top).
A2204707701 (bottom).

Fuel reserve

The 88 liter tank uses 11 liters as a reserve. The 78 liter tank uses 10 liters as a reserve.

The reserve is what is left when the needle is pointed all the way down to the bottom of the yellow area and the fuel warning light comes on. Hence, the fuel gauge in the instrument cluster shows the fuel level minus the reserve volume.

Splash bowl

Shown on model 220:

  • 42 - To fuel tank ventilation system
  • 80 - Fuel tank
  • 80/5 - Splash bowl
  • 80/10 - Return flow line
  • 80/11 - Fuel strainer
  • 80/13 - Riser line
  • 80/17 - Return flow nozzle
  • 90/12 - Fuel suction hose
  • 91 - Pressurization line
  • 93 - Ventilation hose
  • h - Fuel level


Shown on model 211:

  • 1 - Left suction spray pump
  • 2 - Bleed valve
  • 3 - Pressure regulator valve
  • 4 - Pressure regulator
  • 5 - Right suction spray pump
  • 6 - Splash bowl
  • 7 - Fuel pump in swirl pot
  • 80 - Fuel tank
  • A - Return flow
  • B - Feed line to engine
  • h - Fuel level

The swirl pot is mounted in the fuel tank. The task of the splash bowl is supplying the engine with fuel in the event of a low fuel level in the fuel tank and during lengthy cornering.

The fuel return flow stream flows out of the return flow nozzle (80/17) into the splash bolw at a high velocity when the fuel pump is operated. As a result, the fuel around the return flow nozzle (80/17) is also entrained and carried into the splash bowl.

Fuel tank pressure sensor (USA)

Shown on model 210:

  • B4 - Fuel gage sensor
  • B4/3 - Fuel tank pressure sensor

The fuel tank pressure sensor is built into the hausing of the fuel gauge.

The task for the fuel tank pressure sensor is detecting the internal pressure of the fuel tank for the leak test of the fuel system.

The output signal depends on the pressure inside the tank and is transmitted to the engine control unit.

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