Secondary Water Pump 2015.5 V60 T5

[Anticus]

Okay I'm about to pull my hair out over this and I can't find any info, even in the service manual.

I was told by my shop that my water pump needed to change, but it was way expensive so I did it myself. On the phone, the mechanic told me that they had hooked the old pump up to 12V and it wasn't turning at all, which told me that the electric pump needed to be changed, as diagnostic procedure for a mechanical pump tends not to involve electricity.

I bought another pump and changed it per the service manual instructions. When I had hooked everything else up, there was no coolant flow. Hot on the block side of the pump, cold on the radiator side.

I retraced the whole procedure and eventually just figured that there was something I didn't do properly, so I boldly gave up and left it at the shop last night.

This morning a tech calls me and tells me that "the coolant leak is coming from the water pump".

I told him I just changed the water pump and I'm really interested in why it isn't working, not that it's leaking. He told me the water pump on this car is actually under the timing belt on the passenger side (left-hand drive) and that he didn't know what I had changed.

I had to get back to work so I just told him to ring me up for the diagnostic and I'd pick up the car later.

Where on earth can I find any info about that in the service manual? The only pump even listed in the cooling system is the electrical pump on the transmission side. I hate to think that I did an entire pointless replacement because I didn't use a search function correctly.

Any info in response to this rant is appreciated.

[XC60aches]

Assuming you have the 2.0 4cyl turbo engine in the 2015.5. Have no idea what he is talking about. The only water pump I know of is electric located on the front of the engine (Assuming same orientation as xc60)

Looking at one parts catalog this is all I found:

https://www.volvooempartsdirect.com/oem ... wtbDQtZ2Fz

[jimmy57]

The water pump will not run by attaching power and ground. It has an integrated power stage (transistor amplifier circuit) and the ECM controls water pump speed via one of the skinny wires and the other skinny wire wire is a feedback for pump speed.

I am assuming you bought a 4 cylinder electric water pump and found one on the front of the block right under intake manifold at the transmission end of the engine.

[Anticus]

Assuming you have the 2.0 4cyl turbo engine in the 2015.5. Have no idea what he is talking about. The only water pump I know of is electric located on the front of the engine (Assuming same orientation as xc60)

Looking at one parts catalog this is all I found:

https://www.volvooempartsdirect.com/oem ... wtbDQtZ2Fz

That's what I'm thinking too. I'm going to go by and have them show me what's up.