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Author Topic: 12V Pumps in Cooling System  (Read 19291 times)

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polilara

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Re: 12V Pumps in Cooling System
« Reply #30 on: 11 October 2022, 16:26:02 »
Quote from: Doctor Gollum on 04 October 2022, 18:39:54
Quote from: polilara on 04 October 2022, 16:13:19
Sure, thanks. Climate panel would be another point to start today. Found this
http://www.omegaowners.com/forum/index.php?topic=90507.0

So radio and cage out. Do I just then have to open those two screws to take climate panel out. I do not undersrand where it "dissapears" in this case. I ask just to avoid romving parts which are not necessary to take out when removing climate panel.
Ashtray and radio out and remove the two screws in the top corners. Then lift the trim away.

No need to remove the plugs for the switches... Once the trim is free of the dash you can access the clips that secure the climate panel and also the plugs. Use the wire detail I posted to identify the correct plug for testing.

So a bit uncertain to pull the climate panel out. Do I just have to bend those two clips below the panel (marked by red arrows) or are there more clips somewhere behind the panel? Bending is ok but the panel does not move. Don't want to use too much power yet.
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Re: 12V Pumps in Cooling System
« Reply #31 on: 11 October 2022, 18:12:27 »
Leave that metal alone and pull the trim up and out with the climate panel attached  :y

That metal is the radio age and by and large irrelevant in this exercise. Ignore it.  ;)
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polilara

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Re: 12V Pumps in Cooling System
« Reply #32 on: 12 October 2022, 07:40:34 »
Thanks DG, seems that I have language problem; Trim with Climate Panel is up and out so I can see and reach the connectors X63 and X64. I only wondered that if I would like to take off the Climate Panel from the Trim how to do that, Are there some "clips" which release it.
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Re: 12V Pumps in Cooling System
« Reply #33 on: 12 October 2022, 11:40:49 »
Yes, it releases from the frame towards the dash. There's two spring clips either side to release it.  :y
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Re: 12V Pumps in Cooling System
« Reply #34 on: 12 October 2022, 17:33:50 »
Quote from: Doctor Gollum on 29 September 2022, 20:43:03
Coolant pump confirmed as BlackBlue/Brown :y

Fed directly from the climate panel Pin19 of X63 (one of the two plugs into the climate panel)

For identification purposes, Pin1 on X63 is Red... Pin1 on X64 is White :y

Runs via X3 Pin17 and X30 Pin3.

These are both the big round plugs next to the battery. X3 is run from under the scuttle. X30 is the main engine harness plug.

Thanks again, panel off now and plugs opened. Before I put my ohm meter there:
Plug in left side Pin 1 is White Red??? and Pin 17 is White.
Plug in right side Pin 1 is Red, Pin 17 is Black Blue and Pin 19 is Black Blue as well
So, right side seems to be X63 athough Pin 1 of X64 is not White
...do we have to double check something? If not I continue with Pin 19 in X63
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Re: 12V Pumps in Cooling System
« Reply #35 on: 12 October 2022, 19:11:53 »
The pins are numbered on both the plugs and the sockets.  ;)
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Re: 12V Pumps in Cooling System
« Reply #36 on: 13 October 2022, 09:38:43 »
Sure, next step is resistance measurement, hard to believe that bad wires anywhere. Everything looks very clean and nice under bonnet, too. Is the climate panel a typical part which fails and do someone repair them? Weekend is busy but early next week I have a possibility to go there with my Ohm meter...
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Re: 12V Pumps in Cooling System
« Reply #37 on: 18 October 2022, 17:58:17 »
So job jobbed, I mean that Pin 19 conducts fine to the pump in question. I already put everything back as I need the car soon. What next, does someone repair climate panels or is there available used ones which work? I need a spare or then I just leave it how it is.
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Re: 12V Pumps in Cooling System
« Reply #38 on: 18 October 2022, 18:17:49 »
That certainly suggests a fault within the panel itself.

The panel can be dismantled with care, and there is a slim chance the the issue is obvious. Easy alternative is a replacement panel :y
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Re: 12V Pumps in Cooling System
« Reply #39 on: 18 October 2022, 18:36:02 »
Have to think this but thanks a lot DG!
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Re: 12V Pumps in Cooling System
« Reply #40 on: 30 October 2022, 08:29:46 »
Found several spares but still two questions:

1. Which numbers are important here? Upper one is mine, 69382201 is same in both others not. Does this matter?
2. Do I need programming/Tech2 etc. if changed?

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Re: 12V Pumps in Cooling System
« Reply #41 on: 30 October 2022, 09:38:45 »
Lower one is newer. But they are interchangeable  ;)
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Re: 12V Pumps in Cooling System
« Reply #42 on: 30 October 2022, 10:01:09 »
Thanks, then no problem to change if jut plug and play. Interesting is that this car was registered in Feb. 2001 and the panel is made in 2002. I bought this car Jan 2004 (driven 45000km) and it had issue with heater so the seller(VW dealer) took it to local GM dealer and it was repaired for me free of charge. So the panel really is a part which can fail.
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Re: 12V Pumps in Cooling System
« Reply #43 on: 30 October 2022, 10:53:42 »
Any part can fail ;) mechanical failure tends to be wear related with some warning given, electrical failure less so...

Replacing the part concerned is usually the most effective fix.
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Re: 12V Pumps in Cooling System
« Reply #44 on: 30 October 2022, 11:01:37 »
Before you get too carried away...

I note the following from the Owners Manual...

"Residual Heat System

When the vehicle is stopped and the ignition OFF, the heat still in the cooling system can be used to heat the passenger compartment, for example when stopped at a rail crossing:

Press AUTO with the ignition OFF. AUTO and the pre-selected temperatures appear on the display.

The residual heat system switches off automatically when the heat stored in the cooling system is no longer sufficient to heat the passenger compartment.

To deactivate, switch ON the ignition or press OFF. "
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