When driving home from a camping trip last week the coolant level low warning sign flicked on for a couple of seconds then went off, so when I got home I checked it out.

Upon opening the bonnet I found that there was a pool of coolant sitting on top of the supercharger, coming from the Norma connector that is located above. I had noticed that this connector had leaked before but only a little so I wasnt too worried, however this time I looked around a bit and found that there was coolant sitting on top of the right (passenger) exhaust manifold, dribble marks on the back of the transmission (new <400miles ago) and some seepage from a couple of other Norma connectors.

I was unsure if the water pump had been replaced and thought that now would be a good time to check. Black impellers were present so a new one has been ordered but none of the blades in the old one were broken so that is a relief.

What I am wondering is
1. Is it common for the connectors to leak or could overheating have caused multiple leaks at once.
2. Can the Norma connectors be purchased/replaced on their own or will I have to change the hoses too.

Thanks In advance for your replies
RavePolice

 

The Norma connectors were a great invention for efficient merging of the engine with the body climate control system in the manufacturing process. Unfortunately, they have an effective life of substantially less than the car.

There is an 'O' ring inside the connector that will fix the problem but few have been able to get the connectors apart to install the 'O' ring. Most effective solution is to cut the connector out and replace with a piece of 5/8" heater hose and a couple clamps.

 

Jaguar installed three different pumps -- the original pump was black Nylon 66 and must be replaced vin 812256 - 843500 then they installed a black Poly P Sulphide at 843501 - 873499 ......then they changed the color to white at 873500 - 559525 same Poly P -- so the black one in the car may be OK.

Also -- do an inspection of the hoses -- It may be a better idea to replace them and end any problems. The damage that can be done with a lost of coolant and an over heat situation is not worth the risk.

 

Testpoint, thanks for the info, I think I will replace all the in line connectors with your method. Unfortunately I snapped the one that connects above the super charger where the diameters of the two pipes are different so I will have to get a new connector at least in that instance.

Yeldogt, that's interesting about the pump, I was always under the impression that black=bad. My vin is within the safe range so you have saved me a few $ there. also put my mind at rest, coolant everywhere and I immediately had visions of broken water pumps, overheating and blown head gaskets.

 

You may find that replacing the hoses is a very significant repair. Check in the plumbing section of a big box building supply store for connectors that make the size transition.

Heloise