Duo Valve - Revision history

Ricebubbles: Moved Circulation Pump stuff to proper section.

2016-11-18T09:10:07Z

Moved Circulation Pump stuff to proper section.

@@ Line 18: / Line 18: @@
 ===Issue 2 with Duovalve (NB LHD Vehicle)===
 I changed my duovalve a few days ago and learned some things while doing it. I had followed the original post which I found after cracking my windshield baffle that the pictures were specific to a W211, and not my W220. So I hope these pics and steps help some of you looking to do this repair. I can tell you that I have almost zero repair experience, as you can see from my rambling and poor pics and thought this repair was fairly easy if you take your time and follow the steps. The duovalve is located under the windshield wiper plate fairly close to where it is on the W211, so you can follow the first few steps of the W211 thread to get you started but here are the steps.
 ==DIY Procedures - Duo Valve==
@@ Line 40: / Line 27: @@
 http://www.benzworld.org/forums/showthread.php?t=1271866http://www.benzworld.org/forums/w210-e-class/1570724-my-attempt-replacing-transmission-plug.html

Ricebubbles: /* Method 3 DIY Renew Brushes in Duovalve Circulation Pump */ Added exact detail for brushes.

2016-11-17T06:55:26Z

Method 3 DIY Renew Brushes in Duovalve Circulation Pump: Added exact detail for brushes.

← Older revision		Revision as of 06:55, 17 November 2016
Line 54:		Line 54:
	* OEM brush thickness 5mm		* OEM brush thickness 5mm
	* OEM worn brush length about 6mm.		* OEM worn brush length about 6mm.
	* OEM original brush length about ~~15mm~~.		* OEM original brush length about 11mm.

	Purchase new brushes to suit these dimensions.		Purchase new brushes to suit these dimensions.
Line 68:		Line 68:
	* brush length 15.8mm.		* brush length 15.8mm.

	Sand down the MAKITA brush thickness (sand both sides evenly) to produce a brush with thickness 5mm.		Sand down the MAKITA brush '''thickness''' (sand both sides evenly) to produce a brush with thickness 5mm.

	~~Cut~~ off the connector on the MAKITA leads.		Sand down the MAKITA brush '''length''' to produce a brush with length 11.5mm with a square end. Running the pump will soon remove the square end to match the commutator 13mm diameter.

			Using a triangular file, file a small groove about 1mm deep across the MAKITA Brush (at 90 degrees to the lead entry) to locate the Brush Retaining Spring.

			Carefully take off the connector on the MAKITA leads.

			The next figure shows from Left to right;

			'''OEM Worn Brush: MAKITA Brush as supplied: MAKITA Brush modified to suit Circulation Pump'''
			[[File:Carbon Brushes MAKITA CB325 30-00-325-H Modified to suit MB Circulation Pump.JPG\|500px\|center]]

	Solder each MAKITA brush lead to the electrical connections in the Duovalve Circulation Pump.		Solder each MAKITA brush lead to the electrical connections in the Duovalve Circulation Pump.
Line 76:		Line 85:
	Use two small nails or similar thick wire inserted through the Motor End Plate holes to hold the brushes in the fully withdrawn position.		Use two small nails or similar thick wire inserted through the Motor End Plate holes to hold the brushes in the fully withdrawn position.

	~~Remove~~ the two small nails or similar thick wire to allow the brushes to spring into place and contact the commutator.		Start to reassemble the End Plate on to the Motor.

			Once the brushes are next to the commutator, remove the two small nails or similar thick wire to allow the brushes to spring into place and contact the commutator.

	~~Reassemble~~ the End Plate on to the Motor.		Finally reassemble the End Plate on to the Motor

	Using a centre punch crimp the tabs in place to hold the End Plate on the Motor.		Using a centre punch crimp the tabs in place to hold the End Plate on the Motor.

Ricebubbles: /* Method 2 with Duovalve (NB LHD Vehicle) */ Added Method 3 Renew Brushes in Duovalve Circulation Pump

2016-11-14T10:11:01Z

Method 2 with Duovalve (NB LHD Vehicle): Added Method 3 Renew Brushes in Duovalve Circulation Pump

← Older revision		Revision as of 10:11, 14 November 2016
Line 40:		Line 40:

	http://www.benzworld.org/forums/showthread.php?t=1271866http://www.benzworld.org/forums/w210-e-class/1570724-my-attempt-replacing-transmission-plug.html		http://www.benzworld.org/forums/showthread.php?t=1271866http://www.benzworld.org/forums/w210-e-class/1570724-my-attempt-replacing-transmission-plug.html

			===Method 3 DIY Renew Brushes in Duovalve Circulation Pump===
			Remove the Duo Valve Assembly from the car. (See above DIY Methods for procedure.)
			[[File:W220 ACC Circulation Pump Motor Showing End Plate.JPG\|400px\|center]]

			Prise open the three metal tabs to release the Motor End Plate.

			Remove the End Plate from the Motor.
			[[File:W220 ACC Circulation Pump Motor with End Plate Removed.JPG\|400px\|center]]

			Check the dimensions of the worn OEM brushes.
			* OEM brush width 5mm
			* OEM brush thickness 5mm
			* OEM worn brush length about 6mm.
			* OEM original brush length about 15mm.

			Purchase new brushes to suit these dimensions.

			The author could not find exact replacement brushes but the Carbon Brushes for a MAKITA electrical tool with part number CB325 30-00-325-H can be modified to suit the Duovalve Circulation Pump. They are available for about $10 for a set of two.
			[[File:Carbon Brushes MAKITA CB325 30-00-325-H.JPG\|300px\|center]]

			The MAKITA brushes have:
			* a side entry lead
			* an 18mm long lead
			* brush width 5mm
			* brush thickness 11mm
			* brush length 15.8mm.

			Sand down the MAKITA brush thickness (sand both sides evenly) to produce a brush with thickness 5mm.

			Cut off the connector on the MAKITA leads.

			Solder each MAKITA brush lead to the electrical connections in the Duovalve Circulation Pump.

			Use two small nails or similar thick wire inserted through the Motor End Plate holes to hold the brushes in the fully withdrawn position.

			Remove the two small nails or similar thick wire to allow the brushes to spring into place and contact the commutator.

			Reassemble the End Plate on to the Motor.

			Using a centre punch crimp the tabs in place to hold the End Plate on the Motor.

Ricebubbles: /* Issue 2 with Duovalve (NB LHD Vehicle) */ Added Issue 3 with Duovalve Circulation Pump

2016-11-14T09:31:37Z

Issue 2 with Duovalve (NB LHD Vehicle): Added Issue 3 with Duovalve Circulation Pump

@@ Line 18: / Line 18: @@
 ===Issue 2 with Duovalve (NB LHD Vehicle)===
 I changed my duovalve a few days ago and learned some things while doing it. I had followed the original post which I found after cracking my windshield baffle that the pictures were specific to a W211, and not my W220. So I hope these pics and steps help some of you looking to do this repair. I can tell you that I have almost zero repair experience, as you can see from my rambling and poor pics and thought this repair was fairly easy if you take your time and follow the steps. The duovalve is located under the windshield wiper plate fairly close to where it is on the W211, so you can follow the first few steps of the W211 thread to get you started but here are the steps.
 ==DIY Procedures - Duo Valve==

Ricebubbles: /* Description - Duo Valve */ added detail for RHD

2016-11-14T09:07:11Z

Description - Duo Valve: added detail for RHD

← Older revision		Revision as of 09:07, 14 November 2016
Line 2:		Line 2:
	==Description - Duo Valve==		==Description - Duo Valve==

	~~Note: There~~ is a duo valve in the Driver's side rear engine compartment for the standard two zone ACC and, where fitted, a duo valve in the front right wheel well for the rear HVAC.		In a LHD vehicle there is a duo valve in the Driver's (left) side rear engine compartment for the standard two zone ACC and, where fitted, a duo valve in the front right wheel well for the rear HVAC.

	Duo Valve partially removed from a LHD vehicle.		In a RHD vehicle there is a duo valve in the Driver's (right) side rear engine compartment for the standard two zone ACC and, where fitted, a duo valve in the front right wheel well (TO BE CONFIRMED) for the rear HVAC.

			The next figure shows a Duo Valve partially removed from a LHD vehicle.

	[[File:W220_Duovalve_partially_removed_from_a_LHD_Vehicle.JPG\|300px\|center]]		[[File:W220_Duovalve_partially_removed_from_a_LHD_Vehicle.JPG\|300px\|center]]

Ricebubbles at 23:40, 17 March 2015

2015-03-17T23:40:16Z

← Older revision		Revision as of 23:40, 17 March 2015
Line 1:		Line 1:
	~~Refer~~ to: [[WIS 83.40 Automatic Climate Control (ACC) or Heating Ventilation and Air Conditioning (HVAC)]]		Back to: [[WIS 83.40 Automatic Climate Control (ACC) or Heating Ventilation and Air Conditioning (HVAC)]]
	==Description - Duo Valve==		==Description - Duo Valve==

Ricebubbles at 23:01, 17 March 2015

2015-03-17T23:01:23Z

← Older revision		Revision as of 23:01, 17 March 2015
Line 1:		Line 1:
			Refer to: [[WIS 83.40 Automatic Climate Control (ACC) or Heating Ventilation and Air Conditioning (HVAC)]]
			==Description - Duo Valve==

	Note: There is a duo valve in the Driver's side rear engine compartment for the standard two zone ACC and, where fitted, a duo valve in the front right wheel well for the rear HVAC.		Note: There is a duo valve in the Driver's side rear engine compartment for the standard two zone ACC and, where fitted, a duo valve in the front right wheel well for the rear HVAC.

	Duo Valve partially removed from a LHD vehicle.		Duo Valve partially removed from a LHD vehicle.

	~~http~~:~~//w220.ee/images/1/12/~~W220_Duovalve_partially_removed_from_a_LHD_Vehicle.JPG		[[File:W220_Duovalve_partially_removed_from_a_LHD_Vehicle.JPG\|300px\|center]]

			==Issues - Duo Valve==
			===Issue 1 with Duovalve (NB LHD Vehicle)===
	Acknowledgement of contributions by BenzWorld Members, finntexan and dcarveriii.		Acknowledgement of contributions by BenzWorld Members, finntexan and dcarveriii.

	''~~'Issue 1 with Duovalve (NB LHD Vehicle)'''~~		The duovalve in W220 is located in front of the firewall but behind the sound insulating wall. Four inches below the black plastic liner which is in front of the windshield. Just a little bit toward the driver's side from the car center line. You can barely see it under the hood when looking from the driver's side of the car.

	~~The~~ duovalve ~~in W220 is located in front of~~ the ~~firewall but behind~~ the ~~sound insulating wall~~. ~~Four inches below the black plastic liner which is in front~~ of ~~the windshield~~. ~~Just a little bit toward the driver's side~~ from the ~~car center line~~. ~~You can barely see~~ it ~~under~~ the ~~hood when looking from~~ the ~~driver's side~~ of the ~~car~~.		===Issue 2 with Duovalve (NB LHD Vehicle)===
			I changed my duovalve a few days ago and learned some things while doing it. I had followed the original post which I found after cracking my windshield baffle that the pictures were specific to a W211, and not my W220. So I hope these pics and steps help some of you looking to do this repair. I can tell you that I have almost zero repair experience, as you can see from my rambling and poor pics and thought this repair was fairly easy if you take your time and follow the steps. The duovalve is located under the windshield wiper plate fairly close to where it is on the W211, so you can follow the first few steps of the W211 thread to get you started but here are the steps.

	~~'''~~Method 1 for Duovalve (NB LHD Vehicle)~~'''~~		==DIY Procedures - Duo Valve==
			===Method 1 for Duovalve (NB LHD Vehicle)===

	Refer to: http://www.benzworld.org/forums/w220-s-class/1271866-sorry-another-air-con-issue.html		Refer to: http://www.benzworld.org/forums/w220-s-class/1271866-sorry-another-air-con-issue.html

	~~'''Issue 2 with Duovalve (NB LHD Vehicle)'''~~		===Method 2 with Duovalve (NB LHD Vehicle)===

	I changed my duovalve a few days ago and learned some things while doing it. I had followed the original post which I found after cracking my windshield baffle that the pictures were specific to a W211, and not my W220. So I hope these pics and steps help some of you looking to do this repair. I can tell you that I have almost zero repair experience, as you can see from my rambling and poor pics and thought this repair was fairly easy if you take your time and follow the steps. The duovalve is located under the windshield wiper plate fairly close to where it is on the W211, so you can follow the first few steps of the W211 thread to get you started but here are the steps.

	~~'''~~Method 2 with Duovalve (NB LHD Vehicle)~~'''~~

	http://www.benzworld.org/forums/showthread.php?t=1271866http://www.benzworld.org/forums/w210-e-class/1570724-my-attempt-replacing-transmission-plug.html		http://www.benzworld.org/forums/showthread.php?t=1271866http://www.benzworld.org/forums/w210-e-class/1570724-my-attempt-replacing-transmission-plug.html

Ricebubbles at 13:30, 3 March 2015

2015-03-03T13:30:16Z

← Older revision		Revision as of 13:30, 3 March 2015
Line 1:		Line 1:
	Note: There is a duo valve in the Driver's side rear engine compartment and a duo valve in the front right wheel well ~~which is~~ for the rear HVAC.		Note: There is a duo valve in the Driver's side rear engine compartment for the standard two zone ACC and, where fitted, a duo valve in the front right wheel well for the rear HVAC.

			Duo Valve partially removed from a LHD vehicle.

			http://w220.ee/images/1/12/W220_Duovalve_partially_removed_from_a_LHD_Vehicle.JPG

	Acknowledgement of contributions by BenzWorld Members, finntexan and dcarveriii.		Acknowledgement of contributions by BenzWorld Members, finntexan and dcarveriii.

Ricebubbles at 13:24, 3 March 2015

2015-03-03T13:24:30Z

← Older revision		Revision as of 13:24, 3 March 2015
Line 1:		Line 1:
			Note: There is a duo valve in the Driver's side rear engine compartment and a duo valve in the front right wheel well which is for the rear HVAC.

	Acknowledgement of contributions by BenzWorld Members, finntexan and dcarveriii.		Acknowledgement of contributions by BenzWorld Members, finntexan and dcarveriii.

Ricebubbles: Added detail for Duo Valve.

2015-03-03T13:22:50Z

Added detail for Duo Valve.

New page

Acknowledgement of contributions by BenzWorld Members, finntexan and dcarveriii.

'''Issue 1 with Duovalve (NB LHD Vehicle)'''

The duovalve in W220 is located in front of the firewall but behind the sound insulating wall. Four inches below the black plastic liner which is in front of the windshield. Just a little bit toward the driver's side from the car center line. You can barely see it under the hood when looking from the driver's side of the car.

'''Method 1 for Duovalve (NB LHD Vehicle)'''

Refer to: http://www.benzworld.org/forums/w220-s-class/1271866-sorry-another-air-con-issue.html

'''Issue 2 with Duovalve (NB LHD Vehicle)'''

I changed my duovalve a few days ago and learned some things while doing it. I had followed the original post which I found after cracking my windshield baffle that the pictures were specific to a W211, and not my W220. So I hope these pics and steps help some of you looking to do this repair. I can tell you that I have almost zero repair experience, as you can see from my rambling and poor pics and thought this repair was fairly easy if you take your time and follow the steps. The duovalve is located under the windshield wiper plate fairly close to where it is on the W211, so you can follow the first few steps of the W211 thread to get you started but here are the steps.

'''Method 2 with Duovalve (NB LHD Vehicle)'''

http://www.benzworld.org/forums/showthread.php?t=1271866http://www.benzworld.org/forums/w210-e-class/1570724-my-attempt-replacing-transmission-plug.html