BMW 7 Series: Checking Contact Angle Of Windscreen Wiper Arms On Front Windscreen
Notes
NOTE: Precisely adjusting the contact angle of the wiper arms is crucial to determining wiping quality.
IMPORTANT: Wiper arms are only checked and not adjusted. ADJUSTMENT DIMENSIONS
Remove wiper blade (1) from wiper arm (2).
Pin (3) is locator for special tool 61 6 100.
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Fig. 334: Identifying Wiper Blade, Wiper Arm And Pin Of Special Tool (61 6
100)
Slide special tool 61 6 100 onto pin (1).
Place special tool 61 6 100 on windscreen (2) and read off value in degrees on scale.
NOTE: LHD vehicles are covered by the scale range of 0 to -5 and RHD vehicles by the scale range of 0 to +5.
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Fig. 335: Sliding Special Tool (61 6 100) Onto Pin
CHECKING CONTACT ANGLE OF WINDSCREEN WIPER ON LEFT OR RIGHT
Notes
Correctly adjusting the contact angle of the wiper arms is crucial to determining wiping quality. For adjustment, refer to the vehicle-specific repair instruction.
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Fig. 336: Identifying Contact Angle Between Wiper Blade Centre Plane And
Windscreen
A/B = Distance between windscreen wiper blade (2) and trim panel on cowl panel (1)
NOTE: Measurement is taken at the height of the locators (3) for the windscreen wiper arms
C = Contact angle between wiper blade center plane and windscreen
When using special tool 61 6 100 , check the scale value according to the following table.
For RHD vehicles, change the preceding sign of the scale values.
- LHD vehicles, scale range 0 to -5
- RHD vehicles, scale range 0 to +5
SPECIAL TOOLS DESCRIPTION CHART
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OVERVIEW OF WINDSCREEN WASHER SYSTEM AND HEADLIGHT WASHER SYSTEM (SRA)
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Fig. 337: Overview Of Windscreen Washer System And Headlight Washer System
(SRA)
- Windscreen wiper blades
- Windscreen wiper arms
- Spray nozzles for windscreen washer system
- Wiper bracket
- Washer pump for headlight washer system
- Windscreen washer pump
- Fluid reservoir for windscreen washer system
- Level switch for windscreen washer system
- High-pressure nozzles of SRA
- Checking, adjusting, venting
READ NEXT:
Removing And Installing Or Replacing Console For Windscreen
Washer System Complete With Motor
IMPORTANT: Read and comply with notes on protection against electrostatic
damage (ESD
PROTECTION).
IMPORTANT: Before installing the wiper arms, allow wiper motor to run into
rest position.
IMPORTANT
Headlight Washer System
ADJUSTING WASHER JETS FOR HEADLIGHT WASHER SYSTEM
NOTE: The washer jets of the headlight washer system have been adjusted
at the
factory and normally this setting is not altered (except by an acciden
Window Washer System
ADJUSTING WASHER JETS FOR WINDSCREEN WASHER SYSTEM
Triple nozzle system
Fig. 351: Identifying Washer Spray Jet Adjusting Values
The spray jets should hit the middle of the wiping area.
Adjustment val
SEE MORE:
Vacuum Pump
REMOVING AND INSTALLING/REPLACING VACUUM PUMP (N63)
IMPORTANT: Installation note:
Due to the risk of damage to the engine gaskets/seals and the lack of brake
boosting, make sure before starting the engine that all the vacuum lines are
connected.
Vacuum pump is fitted on cylinder head 1 to 4 at rear
Removing And Installing/Replacing Roller Chain For Oil Pump Drive
(N63)
Special tools required:
11 7 201
22 13 485
Necessary preliminary tasks:
Drain engine oil.
Remove flywheel.
Remove bottom of oil sump.
NOTE: Support bush (2) is included in delivery specification.
If the crankshaft seal (1) is stored for more than six months without the
support sleeve (2),
