Turbo electric auxiliary water pump , any other options ???

[Dan944t]

Hi guys ,

im a little suspect of my electric auxiliary water oumo for the turbo water circulation , as I’ve not heard it for a while and used to and it’s also got a bit of water coming out from what seems to be the main blade part as I’ve revealed it already and that part looks good. Think it may have given up the gost?

My wuestion is cab this be tested off the car for operation if the motor the motor by the two wires?

also if I wanted to buy new, is there another alternative I can use just by changing the wire connector from double flat spade type to our prong type?

Ive found a few, one being a bosche item that looks the same and it’s under £60 I’ll try out link up

https://imgur.com/a/2akhxyR

 

[Waylander]

That is a EV1 connector, easy to get and rewire if you need help with electrics let me know

If the pump looks the same, has yours got a Bosch part number on it

 

[Dan944t]

Thanks Martin,

yes im pretty sure it’s a bosche unit but can’t read the numbers other than one of them starts 951 it’s worn out. Thought if I get one of these change the wiring use the connector of my original one connect and was wondering if there’s much difference in all of these as I see allot of other makes and models have the same looking units, I can’t imagin that much difference in literage very compared to a original Porsche item, just wondered if anyone had done this or knew of what ones would work if changing the electrical connector.

Hopefully heres a pic of mine
https://imgur.com/a/uEc4DFt

 

[Waylander]

Found this one

https://www.autodoc.co.uk/bosch/663433?gshp=1&gclid=EAIaIQobChMI1YrMgfuH4gIVUkHTCh0n-gASEAQYAiABEgKdsPD_BwE

https://www.buycarparts.co.uk/bosch/663433?&gshp=1&gclid=EAIaIQobChMI1YrMgfuH4gIVUkHTCh0n-gASEAQYByABEgIwEPD_BwE&gclsrc=aw.ds

Mercedes Benz Parking Heater Pump, looks identical to me, just need a converter lead or the plug chopped off yours,

Or you can give me yours and I will rebuild it with some new seals and test it out

 

[Eldavo]

Yup - there’s a Merc part that’s a straight swap once you’ve chopped the connector off.

However, I bought a Bosch unit that looked broadly similar for about £20, changed the plug over to an EV1 (IIRC) and reseated it slightly and it’s been perfect. Unfortunately this was several years ago and I don’t have the records to hand of what I bought - just a simple 12v pump though.

 

[Dan944t]

WThanks for the kind offer Martin, I funny enough replaced the seal on it when I rebuilt my engine but it is now seeming to leak from the gap where the fins are which I don’t think hey do a rebuild kit for? but most of all I havnt heard it running one switch off which I always used to. I won’t throw it but I did just order a Bosch unit with I think the same part numbers as you have just linked up, and I ordered a EV1 connector?? to utaluse my harness from my original
one.

Even if my ine works i woykd rather change for new one as I seem to be leaking from another part , so will have to wait and see how it turns out I suppose . It’s only x2 wires to find + and minus black and brown, so i assume brown is + and black is -? As it’s old wiring colours or am I wrong?

https://imgur.com/a/AoRAjvT

 

[Eldavo]

When I say multi - you say meter, multi . . .

 

[Dan944t]

[] I actually said it!!

Yes es I’ll be using my multimeter just didn’t know if power only kicks in when up to temp only, so I assumed that power wouldn’t be there till it sends for pump to be on.

Ill figure it out ??

 

[Waylander]

On our cars brown is normally the ground or earth whichever your familiar with

 

[Dan944t]

Ah yes! I remember now you’ve said that, that when I changed the radio brown worked out to be ground ????

 

[Eldavo]

If you take the plug off the coolant temperature sensor next to the throttle body and ground it out to the manifold or similar with a screwdriver then it should activate the pump.

 

[Dan944t]

If you take the plug off the coolant temperature sensor next to the throttle body and ground it out to the manifold or similar with a screwdriver then it should activate the pump.

Hi mate,

I’m interested, can you explain though, do you mean earth out the earth terminal and give the posative terminal power ?

 

[944Turbo]

Its the round plug on the sensor to the left of the turbo - its a single terminal that if grounded should make the pump run. Its a (partly) different circuit to the timer run in that it just triggers the pump to run when the coolant temp exiting the turbo exceeds a temperature (maybe 85 degrees from a very hazy memory!)
Tony

 

[Eldavo]

Its the round plug on the sensor to the left of the turbo - its a single terminal that if grounded should make the pump run. Its a (partly) different circuit to the timer run in that it just triggers the pump to run when the coolant temp exiting the turbo exceeds a temperature (maybe 85 degrees from a very hazy memory!)
Tony

What Tony said []