Advise Needed, Pressurised 1.9Tdi Galaxy

[practicalpcs1]

Good evening everyone, this is my first post so please be nice

 

I need some help, my car has been to the garage for 2 weeks had both water pumps changed and returned to me saying it was ok, anyway spent 3 hours last night on the A10 as yet again it has over heated but cold heater inside, so I asked our garage if they have changed the thermostat and they hadn't so seeing as I had nothing to loose and the water wasn't flowing through the expansion tank I spend 5 hours today fitting a new one the old one tested as faulty although not that old, the water pump is the metal type and is spinning ok, so I read somewhere about the T on the return pipes can get clogged and was amazed to find a small plastic re-stricter stuck in the middle of the return pipe, changed and low and behold every thing is working again heating and lots of air can out of the hose, now I am confused do I need to buy a new pipe with this bit in it or can I just leave it without it in and what are the dangers involved?

 

 

Thank you for you time and look forward to hearing what to do next, if this part is the reason so many galaxy 1.9 have failed why have the made such a shoddy part? mine was completely clogged.

[chrispb123456]

If the cooling system is clean the restrictor is usually fine, the reason it's there is to allow a small amount of coolant and aeration to return to the bottle if the car has overheated and boiled numerous times and probably run on plain water sediment will be loosened up and carried around the system.

Don't want to put a downer on things but I would guess you have early stages of head gasket failure, time will tell.

If you don't replace the restrictor the coolant will follow the route of least resistance, in this case back to the bottle instead of through the radiator.

[practicalpcs1]

Thank you il have to buy another pipe from fords if they know what I need 

[practicalpcs1]

I had the cylinders pressure tested if that makes sense and all seems well, I know the previous owner had the failed plastic water pump and also the electric one had failed, had both changed and water seems to flow ok now and stay at the right temp without the restricter so now I have cleared it out I want to put it back onto a fresh pipe any help in how to get this back into the pipe would be appreciated

[chrispb123456]

To be honest pressure testing at idle is a bit inconclusive when the pressure build up occurs it's when hot and under heavy load, town driving you wouldn't think there is anything wrong.

Have not tried getting the restrictor back in the pipe but you could try using washing up liquid as a lubricant without harming the pipe.

Once refitted with all the levels correct take the car for a hard drive while keeping a check on the heater and temp gauge but more importantly when you stop check the level of coolant in the bottle if it's disappeared or evidence of being blown out through the cap then you have HG problems.

[practicalpcs1]

I managed to get it back in by heating the pipe up to 100 degrees and pushing it in with a screw driver, I have just driven it for 60 miles up the A12 and a couple of national back roads, the temp gage sat straight on 90 and heater was nice and toasty, when I stopped and the level was as I had left it on the max mark, (rather than up by the cap) and when the cap was opened (with a rag of course) there was some pressure there but no where near as much as the amount it had when it overheated where the cap almost burst off after leaving it to cool for any hour.