BMW 7 Series: Checking Filler Cap Pressure Relief Valve
Notes
Set pressure regulator on special tool 16 1 171 fully in "-" direction.
Connect special tool 16 1 171 using compressed air line (1) to workshop compressed air system (8... 10 bar).
Connect pressure sensor (2) from Diagnosis and Information System.
Connect special tool 16 1 172 to quick-release coupling (3).
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Fig. 9: Identifying Pressure Sensor, Air Line, Quick Release Coupling And
Special Tool
Install fuel filler cap on special tool 16 1 172.
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Fig. 10: Identifying Fuel Filler Cap With Special Tool (16 1 172)
NOTE: Only the absolute pressure is indicated in the display of the Diagnosis and Information System (DIS). The current ambient air pressure is already displayed without additional pressurization.
Select "Measurement/Pressure" function on Diagnosis and Information System (DIS).
Using pressure regulator on special tool 16 1 171, increase pressure by 0.2 bar.
Using special tool 13 3 010 clamp off feed line from special tool 16 1 171.
Read off and note down pressure.
Wait 60 seconds.
Read off pressure again and compare with starting pressure value.
Measurement evaluation:
PRESSURE DROP MEASUREMENT EVALUATION
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Check fuel filler cap pressure relief valve! Select "Measurement/Pressure" function on Diagnosis and Information System (DIS).
Using pressure regulator on special tool 16 1 171, increase pressure by 0.3 bar.
Using special tool 13 3 010 clamp off feed line from special tool 16 1 171.
Read off and note down pressure.
Wait 60 seconds.
Read off pressure value again and compare with starting pressure value.
Measurement evaluation:
PRESSURE DROP MEASUREMENT EVALUATION
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READ NEXT:
Removing And Installing Or Replacing Fuel Filler Pipe
(Petrol/Gasoline)
Recycling
Fuel escapes when fuel lines are detached. Have a suitable collecting
container ready.
Catch and dispose of escaping fuel.
Observe country-specific waste-disposal regulations.
IMPORTANT:
Removing And Installing/Replacing Fuel Filter With Pressure
Regulator
Recycling
Fuel escapes when fuel lines are detached. Have a suitable collecting
container ready.
Catch and dispose of escaping fuel.
Observe country-specific waste-disposal regulations.
IMPORTANT:
Removing And Installing/Replacing Fuel Tank Filler Hose
Recycling
Fuel escapes when fuel lines are detached. Have a suitable collecting
container ready. Catch and dispose of
escaping fuel.
Observe country-specific waste-disposal regulations.
IMPORTANT: E
SEE MORE:
Adjusting Hood Pretension - Camloc Fastener With Spacers
NOTE: At least two persons are needed to install and remove the hood.
Before
installing and removing the hood, secure the BMW multitrailer and the entire
combination against rolling. For this purpose, use the parking brake and the
chocks of the BMW multitrailer.
To help adjust the hood pretension,
Replacing Outer Section Of Left Or Right Rear Wheel Housing (Side
Panel Removed)
Read contents of BODY, GENERAL.
Spot-weld bonding is used on this vehicle. Observe specific procedure.
Remove or cover those vehicle components in the repair area which are
susceptible to heat or dust.
Use only approved SPOT-WELDING APPARATUS for repairs.
Necessary preliminary tasks
Remove COVER
