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PointedThree :  Vans, Trucks, SUVs and Other Forums : G-Class DIY Forum : Photo DIY- W463 A/C Vent Flap Actuator Repair

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Photo DIY- W463 A/C Vent Flap Actuator Repair
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Posted 7/7/2014 11:17 PM
G-AMG
G-Class DIY Host




Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
1000
Photo DIY- W463 A/C Vent Flap Actuator Repair

Greets.

I guess I should consider myself blessed we have had as few "Failures" on this truck in it's 100,000 miles...

The latest was a new, disturbing "Light Banging" noise eminating from the Center Dashboard area on Start-Up. Later, when I selected the Foot Vents setting, it sounded like something Restricting airflow with a Wheezing noise.

As a rough guess, it sounded like a Broken Actuator arm; Motor; or Linkage.

Pulling out my handy-dandy STAR showed Fault Code B15A8, which is a "Sticking or Frozen" Left/Right Footwell Flap Actuator, which goes along perfectly with my Hypothesis.

To my complete surprise, and *DISAPPOINTMENT* searching the EPC for parts, and getting a little On-Line Info??? Guess what?? Our High-End G-Wagens have a *C-Class* Airconditioning System!! (W203 which is ca. 2001-2007) According to my Dealer-Lead Tech friend **EVERY** C-Class has Failure of these Actuators or Arms.

The Following is the WIS procedure for R/R.

I don't recall hearing others with this problem, but hopefully it may help someone in the future.

G



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Attachments
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Attachments 1.jpg (41KB - 5 downloads)
Attachments 2.jpg (102KB - 2 downloads)
Attachments 3.jpg (87KB - 2 downloads)
Attachments 4.jpg (130KB - 2 downloads)
Attachments 5.jpg (74KB - 2 downloads)
Attachments 6.jpg (84KB - 3 downloads)
Attachments 7.jpg (129KB - 4 downloads)
Attachments 8.jpg (145KB - 3 downloads)
Attachments 9.jpg (112KB - 2 downloads)
Attachments 10.jpg (105KB - 2 downloads)
Attachments 11.jpg (114KB - 2 downloads)
Attachments 12.jpg (117KB - 2 downloads)
Attachments 13.jpg (120KB - 2 downloads)
Attachments 14.jpg (99KB - 2 downloads)
Attachments 15.jpg (99KB - 3 downloads)
Attachments 16.jpg (68KB - 2 downloads)
Attachments 17.jpg (108KB - 3 downloads)
#222787
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Posted 7/8/2014 12:13 AM
G-AMG
G-Class DIY Host




Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
1000
RE: Photo DIY- W463 A/C Vent Flap Actuator Repair

Hmmm Don't know why the You Tube Link did not Post.

I'll try it again:

https://www.youtube.com/watch?v=hXXH0vR4LDc&feature=youtu.be

#222789 - in reply to #222787
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Posted 7/8/2014 3:47 AM
louwdj
Veteran


Date registered: Feb 2007
Location: Johannesburg South Africa
Vehicle(s): 89 W460 230GE 5 door; 82 W123 230e; 99 W210 E240
Posts: 139
100
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

Thank you for sharing
#222792 - in reply to #222787
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Posted 7/8/2014 7:15 AM
gerryvz
Extreme Veteran




Date registered: Apr 2014
Location: Annapolis, MD
Vehicle(s): 1994 G320, 1989 560SEC, 1994 E500 (W124)
Posts: 336
300
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

Although my G is earlier than this, I always appreciate a nicely done DIY. Thank you for the valuable information !
#222795 - in reply to #222787
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Posted 7/8/2014 8:15 AM
nadd
Expert




Date registered: Apr 2006
Location: UAE, Dubai
Vehicle(s): G500 2016 LHD, numerous Chevys
Posts: 1285
1000
RE: Photo DIY- W463 A/C Vent Flap Actuator Repair

G-AMG - 7/8/2014 4:17 AM

To my complete surprise, and *DISAPPOINTMENT* searching the EPC for parts, and getting a little On-Line Info??? Guess what?? Our High-End G-Wagens have a *C-Class* Airconditioning System!! (W203 which is ca. 2001-2007) According to my Dealer-Lead Tech friend **EVERY** C-Class has Failure of these Actuators or Arms.

I don't recall hearing others with this problem, but hopefully it may help someone in the future.

G


It's like we work in parallel across the pond! I did this last month on the ML320, and sadly these very same motors and system are used on most MLs (W163), and a quick search online reveals the joys C-class owners have with them. Once you get the revised motors/levers things seem to go much better. The motors all have the same part number but seem to be made by different companies (Denso, Behr, etc) and I had a number of faults that could only be accessed by removing the top and lower dash, thankfully much easier on the W163 than the early 463.

Great photos as always (bar the one )



(AC flap motor W163.jpg)



(W163 dash off.jpg)



Attachments
----------------
Attachments AC flap motor W163.jpg (89KB - 2 downloads)
Attachments W163 dash off.jpg (72KB - 2 downloads)
#222799 - in reply to #222787
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Posted 7/8/2014 8:55 AM
hipine



Date registered: Jul 2006
Location: US, CO, Bailey
Vehicle(s): 460 1980 280GE w. 617A
5000
RE: Photo DIY- W463 A/C Vent Flap Actuator Repair

So whereas they start the assembly line build of a 460 G with the heater core and build the truck around it, from your pictures it looks like the W163 assembly line starts with the flap motor.

Nice work both of you and thanks for sharing. Your blazing the trail on stuff like this is key to giving others confidence to self-maintain and is doing a great service in the interest of keeping G's on the road.

-Dave G.
#222800 - in reply to #222799
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Posted 7/8/2014 9:43 AM
G-AMG
G-Class DIY Host




Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
1000
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

Wow! Nadd... Looks like you have quite the job on your hands! And to think you are in the middle of a Move!!


Actually, I did not do this repair just for Fun & Giggles. Since both my boys are driving, now, I felt it to be somewhat of a "Safety" issue, in that the Defrosting function was Inoperative because of the stupid Flap.

#222801 - in reply to #222787
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Posted 7/8/2014 10:08 AM
fernweh



Date registered: Apr 2006
Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany
Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa
2000
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

Thanks Patrick for this DIY,

I might have to dig in there myself.....

I never noticed the "only screw" in picture 7.jpg
The trim in my G500, is held in place by the four clips, two of them seem to fall into the abyss, regardless what you do.....

Is that screw used only in the AMG models? To keep the trim in place while accelerating G55 style?

Please advise

Karl
#222802 - in reply to #222801
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Posted 7/8/2014 10:17 AM
94rover
Veteran




Date registered: Oct 2010
Location: 39.2036° N, 76.8569° W
Vehicle(s): 02 G500
Posts: 240
100
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

Nice detailed write up G-AMG (Patrick)!

I'm missing that 7.jpg too but I was able to see that the tab had been broken, whoever was inside before me got their Hercules power going and broke it.
#222803 - in reply to #222787
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Posted 7/8/2014 10:29 AM
4x4abc



Date registered: Apr 2006
Location: La Paz, Baja California, Mexico
Vehicle(s): 02 G500
5000
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

I have the "only screw" of #7
#222804 - in reply to #222802
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Posted 7/8/2014 11:36 AM
G-AMG
G-Class DIY Host




Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
1000
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

fernweh - 7/8/2014 10:08 AM

Thanks Patrick for this DIY,

I might have to dig in there myself.....

I never noticed the "only screw" in picture 7.jpg
The trim in my G500, is held in place by the four clips, two of them seem to fall into the abyss, regardless what you do.....

Is that screw used only in the AMG models? To keep the trim in place while accelerating G55 style?

Please advise

Karl


In WIS, it looks like the procedure (remove the one screw) applied to "Most W463" models... There were a zillion listed.
#222805 - in reply to #222802
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Posted 7/8/2014 1:08 PM
fernweh



Date registered: Apr 2006
Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany
Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa
2000
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

Hmmm....

with the four clips on the trim piece, I would not been able to pull it down, before pulling it aft.

I need to get in there to verify.....

Karl
#222809 - in reply to #222805
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Posted 7/8/2014 1:37 PM
thebigblue

Date registered: Jan 2012
Location:
Vehicle(s):
500
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

4x4abc - 7/8/2014 4:29 PM

I have the "only screw" of #7


Explosion at #11.jpg ??
#222811 - in reply to #222804
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Posted 7/8/2014 2:40 PM
nadd
Expert




Date registered: Apr 2006
Location: UAE, Dubai
Vehicle(s): G500 2016 LHD, numerous Chevys
Posts: 1285
1000
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

What prompted my action was discovering a number of similar error codes (defrost flap motor, centre vent flap motor, hot/cold blend flap, etc!) so I was convinced it was worth digging in to. Fortunately the motors all seemed fine, but sometimes the levers only come with a motor attached And it can be a bit tricky finding the right lever on the EPC. When the system works it is great however, the cooling of the post '02 Gs is so much better than the '00 model (at least the one we have).
#222813 - in reply to #222787
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Posted 7/8/2014 4:14 PM
G-AMG
G-Class DIY Host




Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
1000
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

thebigblue - 7/8/2014 1:37 PM

4x4abc - 7/8/2014 4:29 PM

I have the "only screw" of #7


Explosion at #11.jpg ??


No... Me temporarly Fainting from the Heat/Humidity/Dehydration added to the Blood-Loss from me skinning my hands in the plastic Rat-Hole you have to work through... ~:-O
#222817 - in reply to #222811
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Posted 3/5/2016 12:32 PM
s2kysk
Member


Date registered: Aug 2009
Location: PNW
Vehicle(s): 04' G500 Black/Gray, 00' 528it BMW, 86' 911 turbo
Posts: 40
25
Re: Photo DIY- W463 A/C Vent Flap Actuator Repair

Thanks G-AMG

What a timely DIY. I had mine start making thump thump sound for week or so ago. With your helpful guide got it fixed!
Looks like HVAC is straight from c-class.
#231749 - in reply to #222787
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