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Octavia 2010 diesel VRS auxilary water pump.

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Merry Xmas everyone, so recently my trusty octavia stopped on the M5. At 230K miles I thought I'd had my luck with it. After recovery and some advice that the high pressure fuel pump had gone  I did some investigation myself. I found that fuse 24 kept blowing when I turned on the ignition. So I started disconnecting all sensors and actuators to determine the specific fault. Unfortunately one of the last to be disconnected was the auxilary water pump. I noticed that the connector had seen some heat, possibly a short. I could not remove this so had to cut the cable to the auxilary water pump. The car now starts and runs, obviously with the EML on. I have managed to obtain a new auxiliary water pump. However, I'm having some issues obtaining a new connector. Can anyone assist me with obtaining one. I have added some pictures of the connector and the socket. 

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I believe you're looking for 4H0 973 703; there are a number listed on fleabay.

 

To confirm you can see the original Skoda part HERE or an aftermarket part with attached leads HERE.

  • Author

Mike, brilliant. Thanks for your help. I have a feeling there will be another question posted when I have to work out, which wires to go to which pins. 

Job for the new year. 

 

 

You mention the car is a VRS but not which model year. The engine code is also relevant.

 

Update: I see from the thread title it's a 2010, but the engine code is still relevant.

 

Edited by MikeTheThinker

  • 2 weeks later...
  • Author

Very good point and thanks for the advice. 

 

The engine code is CEGA

 

So I have received the new water pump and connector that you kindly provided me the details for.

 

I'm now at the point of soldering in the new wiring. However, I can not determine what colour of the original wiring, goes to the each pin on the pump. (3 wires). 

 

Does anyone have any advice, how I could determine this. 

 

Many thanks. 

Strip back and verify the existing wire colours.

 

1053219730_T3aaCoolantpump2.png.725d04cd7b493f94df457131fba3efe8.png

Pin 1 = Negative (Brown)

Pin 2 = Positive (Blue & Red)

Pin 3 = Signal (Purple & Red)

 

AFAIK should be correct if coolant pump two

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