Steering wheel - Revision history

Pokseva: /* Sticky buttons */

2020-06-06T13:50:22Z

Sticky buttons

← Older revision		Revision as of 13:50, 6 June 2020
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	\|[[File:W220_sticky_steering_wheel_buttons.jpg\|thumb\|none\|Sticky buttons.]]		\|[[File:W220_sticky_steering_wheel_buttons.jpg\|thumb\|none\|Sticky buttons.]]
	\|[[File:W220_sticky_steering_wheel_buttons_cleaned.jpg\|thumb\|none\|After cleaned.]]		\|[[File:W220_sticky_steering_wheel_buttons_cleaned.jpg\|thumb\|none\|After cleaned.]]
	~~\|[[File:W220_sticky_light_switch.jpg\|thumb\|none\|Sticky buttons on light switch.]]~~
	\|}		\|}

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	However, better try to avoid using solvents, because it is easy to scratch off the original paint also.		However, better try to avoid using solvents, because it is easy to scratch off the original paint also.
	It helps to leave the buttons in soap water (e.g., Fairy Washing Up Liquid) overnight. This will make scratching off the sticky part easier.		It helps to leave the buttons in soap water (e.g., Fairy Washing Up Liquid) overnight. This will make scratching off the sticky part easier.
			Alternative recommendation is to use cooking oil and finger nails to clean the sticky stuff off.

	[[File:W220_sticky_steering_wheel_buttons_soap_water.jpg\|thumb\|none\|Buttons in soap water.]]		[[File:W220_sticky_steering_wheel_buttons_soap_water.jpg\|thumb\|none\|Buttons in soap water.]]

	'''Note''': Don't try to clean the plastic frame to which the buttons attach. The color layer there is much thinner and too easily comes off along with the sticky coating.		'''Note''': Don't try to clean the plastic frame to which the buttons attach. The color layer there is much thinner and too easily comes off along with the sticky coating.

			A similar problem is observed also on [[Dashboard#Sticky light switch\|light switch cover]].
			{\|
			\|[[File:W220_sticky_light_switch.jpg\|thumb\|none\|Sticky buttons on light switch.]]
			\|}

	== DIY ==		== DIY ==

Pokseva: /* Sticky buttons */ sticky buttons on light switch

2018-06-29T20:31:40Z

Sticky buttons: sticky buttons on light switch

← Older revision		Revision as of 20:31, 29 June 2018
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	\|[[File:W220_sticky_steering_wheel_buttons.jpg\|thumb\|none\|Sticky buttons.]]		\|[[File:W220_sticky_steering_wheel_buttons.jpg\|thumb\|none\|Sticky buttons.]]
	\|[[File:W220_sticky_steering_wheel_buttons_cleaned.jpg\|thumb\|none\|After cleaned.]]		\|[[File:W220_sticky_steering_wheel_buttons_cleaned.jpg\|thumb\|none\|After cleaned.]]
			\|[[File:W220_sticky_light_switch.jpg\|thumb\|none\|Sticky buttons on light switch.]]
	\|}		\|}

Pokseva: /* Remove/install steering column module */ photo added

2017-02-17T20:42:51Z

Remove/install steering column module: photo added

← Older revision		Revision as of 20:42, 17 February 2017
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	* A45 - Fanfare horns and airbag clock spring contact		* A45 - Fanfare horns and airbag clock spring contact
	* N80 - Steering column module		* N80 - Steering column module
			[[File:W220_combination_switch_assembly_torx_bolt.jpg\|thumb\|none\|Steering column module bolt (Torx 30).]]
	\|}		\|}

	Shown on steering column switch module without voice control system		Shown on steering column switch module without voice control system:
	{\|		{\|
	\|[[File:W220_remove_install_steering_column_module_2.jpg]]		\|[[File:W220_remove_install_steering_column_module_2.jpg]]

Pokseva: bolt/screw sizes

2017-02-16T23:42:10Z

bolt/screw sizes

Pokseva: /* Post-deployment */

2017-02-15T20:56:59Z

Post-deployment

← Older revision		Revision as of 20:56, 15 February 2017
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	=== Post-deployment ===		=== Post-deployment ===

			On airbag deployment the clock spring contact connector may melt (as shown in the photo below) and may require replacement of clock spring contact.
	{\|		{\|
	\|[[File:W220_steering_wheel_airbag_deployed.jpg\|thumb\|none\|Steering wheel airbag after having been deployed.]]		\|[[File:W220_steering_wheel_airbag_deployed.jpg\|thumb\|none\|Steering wheel airbag after having been deployed.]]

Pokseva: /* Remove/install steering wheel */

2017-02-15T20:51:23Z

Remove/install steering wheel

← Older revision		Revision as of 20:51, 15 February 2017
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	# Remove airbag unit from steering wheel (32)		# Remove airbag unit from steering wheel (32)
	# Move steering wheel (32) to horizontal position. Front wheels in straight-ahead position.		# Move steering wheel (32) to horizontal position. Front wheels in straight-ahead position.
	* # Remove countersunk screw (32c), steadying steering wheel (32). Installation: Replace countersunk bolt (32c).		# Remove countersunk screw (32c), steadying steering wheel (32). Installation: Replace countersunk bolt (32c).

	# Remove steering wheel (32). Do not pay attention to the markings on the upper steering shaft. Installation: The front wheels must be in the straight-ahead position. Fit steering wheel (32) horizontally onto steering shaft. The recesses in the splines (arrows) run vertically.		# Remove steering wheel (32). Do not pay attention to the markings on the upper steering shaft. Installation: The front wheels must be in the straight-ahead position. Fit steering wheel (32) horizontally onto steering shaft. The recesses in the splines (arrows) run vertically.
	# Check fanfare horns and airbag clock spring contact (A45) for damage. When the steering wheel (32) is detached, the fanfare horns and airbag clock spring contact (A45) must not be twisted, otherwise it will be damaged. Replace damaged fanfare horns and airbag clock spring contact (A45), see: Remove/install clock spring contact.		# Check fanfare horns and airbag clock spring contact (A45) for damage. When the steering wheel (32) is detached, the fanfare horns and airbag clock spring contact (A45) must not be twisted, otherwise it will be damaged. Replace damaged fanfare horns and airbag clock spring contact (A45), see: Remove/install clock spring contact.

Pokseva at 20:47, 15 February 2017

2017-02-15T20:47:07Z

← Older revision		Revision as of 20:47, 15 February 2017
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	== Steering ~~Wheel~~ ==		== Steering wheel ==

	{\|		{\|
Line 6:		Line 6:
	\|}		\|}

	== Steering ~~Wheel Airbag~~ ==		== Steering wheel airbag ==

	Driver's airbag is mounted in the steering wheel.		Driver's airbag is mounted in the steering wheel.
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	\|}		\|}

	== Steering ~~Wheel Buttons~~ ==		== Steering wheel buttons ==
	Steering wheel buttons are attached to both sides of steering wheel airbag.		Steering wheel buttons are attached to both sides of steering wheel airbag.

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	\|}		\|}

	=== Sticky ~~Buttons~~ ===		=== Sticky buttons ===

	Steering wheel buttons in manufacturing phase have been covered with soft feel coating.		Steering wheel buttons in manufacturing phase have been covered with soft feel coating.

Pokseva: /* DIY */

2017-02-15T20:46:19Z

DIY

@@ Line 127: / Line 127: @@
 == DIY ==
 ===Remove/install airbag unit on the steering wheel===
@@ Line 354: / Line 390: @@
 # Install in the reverse order.
 # After replacing steering column tube module (N80) on vehicles with code (219) Distronic (DTR) perform initialization of DTR control unit with STAR DIAGNOSIS.

Pokseva: /* Remove/install airbag unit on the steering wheel */

2017-02-15T20:27:58Z

Remove/install airbag unit on the steering wheel

@@ Line 146: / Line 146: @@
 * Risk of injury caused by performing testing or repair work on airbag or emergency tensioning retractor units. Store airbag units with deployment side facing up; do not expose to temperatures greater than 100 °C. When working on these units, disconnect the power supply.
 * Assessment of airbag and belt tensioner units in accident vehicles (see below).
-* Notes on performing repair, body work and welding on vehicles with airbags and ETR units
+* Notes on performing repair, body work and welding on vehicles with airbags and ETR units (see below).
-* Legal requirements on handling and storing airbags and emergency tensioning retractor units
+* Legal requirements on handling and storing airbags and emergency tensioning retractor units.
-* Notes on disposing of airbag and emergency tensioning retractor units
+* Notes on disposing of airbag and emergency tensioning retractor units (see below).
 * Make airbag units unusable
@@ Line 181: / Line 181: @@
 The sidebag cover in the door lining and the side paneling must be replaced after the sidebag has been deployed. Otherwise the airbag cannot be guaranteed to function correctly.
 ===Remove/install steering wheel===

Pokseva: /* Remove/install airbag unit on the steering wheel */

2017-02-15T20:20:04Z

Remove/install airbag unit on the steering wheel

← Older revision		Revision as of 20:20, 15 February 2017
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	# Remove two screws (arrow). At the same time hold the airbag unit.		# Remove two screws (arrow). At the same time hold the airbag unit.
	# Lift off the airbag unit from the steering wheel and detach the plug-in connector from the squib on the gas generator. Installation: Connector must be heard to engage when being plugged in.		# Lift off the airbag unit from the steering wheel and detach the plug-in connector from the squib on the gas generator. Installation: Connector must be heard to engage when being plugged in.
	# Remove airbag unit from steering wheel~~. Notes on disposing of airbag and emergency tensioning retractor units. Make airbag units unusable~~.		# Remove airbag unit from steering wheel.
	# Install in the reverse order. Installation: The steering wheel must always be replaced after the driver airbag unit has been triggered.		# Install in the reverse order. Installation: The steering wheel must always be replaced after the driver airbag unit has been triggered.
	# Check the automatic resetting of the combination switch.		# Check the automatic resetting of the combination switch.
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	Bolt, airbag to steering wheel - 8 Nm.		Bolt, airbag to steering wheel - 8 Nm.

	# Risk of injury caused by performing testing or repair work on airbag or emergency tensioning retractor units. Store airbag units with deployment side facing up; do not expose to temperatures greater than 100 °C. When working on these units, disconnect the power supply.		Informative:
	# Assessment of airbag and belt tensioner units in accident vehicles (see below).		* Risk of injury caused by performing testing or repair work on airbag or emergency tensioning retractor units. Store airbag units with deployment side facing up; do not expose to temperatures greater than 100 °C. When working on these units, disconnect the power supply.
	# Notes on performing repair, body work and welding on vehicles with airbags and ETR units		* Assessment of airbag and belt tensioner units in accident vehicles (see below).
	# Legal requirements on handling and storing airbags and emergency tensioning retractor units		* Notes on performing repair, body work and welding on vehicles with airbags and ETR units
			* Legal requirements on handling and storing airbags and emergency tensioning retractor units
			* Notes on disposing of airbag and emergency tensioning retractor units
			* Make airbag units unusable

	====Assessment of airbag and belt tensioner units in accident vehicles====		====Assessment of airbag and belt tensioner units in accident vehicles====

← Older revision		Revision as of 23:42, 16 February 2017
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	{\|		{\|
	\|[[File:W220_disconnect_battery.jpg\|thumb\|none\|Disconnect battery.]]		\|[[File:W220_disconnect_battery.jpg\|thumb\|none\|Disconnect battery.]]
	\|[[File:W220_unscrew_airbag.jpg\|thumb\|none\|Unscrew airbag (2 screws).]]		\|[[File:W220_unscrew_airbag.jpg\|thumb\|none\|Unscrew airbag (2 screws (Torx 30)).]]
	\|[[File:W220_lift_out_airbag.jpg\|thumb\|none\|Lift out airbag.]]		\|[[File:W220_lift_out_airbag.jpg\|thumb\|none\|Lift out airbag.]]
	\|[[File:W220_disconnect_steering_wheel_airbag.jpg\|thumb\|none\|Disconnect airbag.]]		\|[[File:W220_disconnect_steering_wheel_airbag.jpg\|thumb\|none\|Disconnect airbag.]]
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	{\|		{\|
	\|[[File:W220_unscrew_steering_wheel_clock_spring.jpg\|thumb\|none\|Unscrew clock spring (3 screws).]]		\|[[File:W220_unscrew_steering_wheel_clock_spring.jpg\|thumb\|none\|Unscrew clock spring (3 screws (Torx 10)).]]
	\|[[File:W220_remove_steering_wheel_clock_spring.jpg\|thumb\|none\|Remove clock spring.]]		\|[[File:W220_remove_steering_wheel_clock_spring.jpg\|thumb\|none\|Remove clock spring.]]
	\|[[File:W220_unscrew_combination_switch_assembly.jpg\|thumb\|none\|Unscrew steering column module.]]		\|[[File:W220_unscrew_combination_switch_assembly.jpg\|thumb\|none\|Unscrew steering column module (Torx 30).]]
	\|[[File:W220_remove_combination_switch_assembly.jpg\|thumb\|none\|Remove steering column module.]]		\|[[File:W220_remove_combination_switch_assembly.jpg\|thumb\|none\|Remove steering column module.]]
	\|}		\|}
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	# Withdraw ignition key		# Withdraw ignition key
	# Remove two screws (arrow). At the same time hold the airbag unit.		# Remove two (Torx 30) screws (arrow). At the same time hold the airbag unit.
	# Lift off the airbag unit from the steering wheel and detach the plug-in connector from the squib on the gas generator. Installation: Connector must be heard to engage when being plugged in.		# Lift off the airbag unit from the steering wheel and detach the plug-in connector from the squib on the gas generator. Installation: Connector must be heard to engage when being plugged in.
	# Remove airbag unit from steering wheel.		# Remove airbag unit from steering wheel.
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	# Remove steering wheel		# Remove steering wheel
	# Unscrew a mounting bolt (32h) far enough so that the fanfare horns and airbag clock spring contact (A45) cannot be twisted. The mounting bolts (32h) act as both an anti-rotation device and an assembly aid.		# Unscrew a mounting bolt (Torx 10) (32h) far enough so that the fanfare horns and airbag clock spring contact (A45) cannot be twisted. The mounting bolts (32h) act as both an anti-rotation device and an assembly aid.
	# Remove steering column tube switch module (34). Remove complete steering column switch module (34): Remove/install steering column module.		# Remove steering column tube switch module (34). Remove complete steering column switch module (34): Remove/install steering column module.
	# Unscrew remaining mounting bolts (32h) far enough so that the fanfare horns and airbag clock spring contact (A45) detaches from the steering column switch module (34).		# Unscrew remaining mounting bolts (32h) far enough so that the fanfare horns and airbag clock spring contact (A45) detaches from the steering column switch module (34).
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	# Remove spiral contact coil (A45)		# Remove spiral contact coil (A45)
	# Remove steering angle sensor		# Remove steering angle sensor
	# Loosen internal Torx bolt (arrow) and remove steering column switch module (1). Internal Torx bolt (arrow) is secured to prevent it falling out.		# Loosen internal Torx bolt (Torx 30) (arrow) and remove steering column switch module (1). Internal Torx bolt (arrow) is secured to prevent it falling out.
	# Remove cover (2) and remove push button (S40/4) upwards out of steering column tube switch module (1). Installation: Ensure that the studs (3) are seated cleanly in the holes, by paying attention to the guides on the push button (S40).		# Remove cover (2) and remove push button (S40/4) upwards out of steering column tube switch module (1). Installation: Ensure that the studs (3) are seated cleanly in the holes, by paying attention to the guides on the push button (S40).
	# Remove switch group or switch (S59/1) upwards out of the steering column tube switch module (1).		# Remove switch group or switch (S59/1) upwards out of the steering column tube switch module (1).