S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

electric coolant pump removal

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Old Nov 13, 2005 | 09:06 AM
  #1  
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Default electric coolant pump removal

<img src="http://dave-new.com/S4/after_run_pump/Mvc-697x.jpg">

Pump connector disconnected.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-698x.jpg">

The rubber grommet to the rear of the pump. You have to slide it to the rear of the car 1/4" to remove it. I pried on it with the long screwdriver.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-699x.jpg">

Hose connection at front of engine, under throttle body.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-702x.jpg">

Bypass valve removed to gain access to hose clamp.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-704x.jpg">

<img src="http://dave-new.com/S4/after_run_pump/Mvc-705x.jpg">

Clamp slid back and hose removed.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-706x.jpg">

Front end of pump
<img src="http://dave-new.com/S4/after_run_pump/Mvc-707x.jpg">

After looking at rear hose clamp, I decided to remove the Y-pipe. There's no way to get pliers directly on the clamp with it installed.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-711x.jpg">

Looking straight down on rear hose clamp.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-712x.jpg">

Rear hose clamp slid forward.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-713x.jpg">

Rear hose removed
<img src="http://dave-new.com/S4/after_run_pump/Mvc-714x.jpg">

Pump partially removed. Notice the rear hose near the right end of the light.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-715x.jpg">

OK, pump is almost out! THe yellow handled K-mart pliers have been removing clamps for years
<img src="http://dave-new.com/S4/after_run_pump/Mvc-717x.jpg">


Pump oriented like it is installed under the manifold.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-718x.jpg">

Pump laying upside down.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-719x.jpg">

Mounting grommets. You install them in a hole, then push forward 1/4" to lock in place. I'm not sure how I'll get them back in Recall, I've already removed the rearward rubber piece from the pump.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-720x.jpg">

That's one of the driver's side mounting holes for the rubber grommet. THe top of the pic is the rear of the car.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-721x.jpg">

Nasty!
<img src="http://dave-new.com/S4/after_run_pump/Mvc-722x.jpg">

Best pic of grommet mounting holes.
<img src="http://dave-new.com/S4/after_run_pump/Mvc-723x.jpg">

I didn't want to get under the car so I used my mityvac hand pump to remove coolant from the reservoir. I then removed the after run pump coolant switch and put the small mityvac hose in the hole to remove the remaining coolant. No coolant spilled when I removed the pump The first pic was taken at 11:09 and the last pic at 12:32.

It would've taken me this long to (very carefully) remove the intake manifold. I really didn't want to remove the manifold. When you have something open, there's always a slight chance of dropping something in it and causing you much pain and aggrevation.. I think Hal knows what I'm talking about
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Old Nov 13, 2005 | 09:11 AM
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Why did you remove it?
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Old Nov 13, 2005 | 09:22 AM
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did you see the pic with all that nasty looking crusted up coolant?
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Old Nov 13, 2005 | 09:25 AM
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great job, and great pictures.
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Old Nov 13, 2005 | 09:29 AM
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Thought you were permanently removing it. Did not catch the part about putting back in. Doh.
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Old Nov 13, 2005 | 11:11 AM
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lol!
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Old Nov 13, 2005 | 11:50 AM
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that's a whole separate story.. that I didn't take pics of
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Old Nov 13, 2005 | 01:51 PM
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Good job, great pix.
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Old Nov 13, 2005 | 01:54 PM
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What year is your car, built?
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Old Nov 13, 2005 | 02:16 PM
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2000, not sure of build date. I just looked at door jamb sticker and didn't see it
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