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i noticed at the bottom of my radiator on my hdi(90),theres a black plastic screw thing which turns 90 degrees. is this the drain plug? i turned it 90 deg but nothing came out. help appreciated here people

It's too bloody cold to go outside and lie on the car park but I believe the drain is bottom laft as you face the car. if nothing is coming out it's probably blocked, try gently jigglig a small screwdriver in the hole and pop the cap off the expansion tank to increase the pressure at the bottom of the circuit.

I changed the antifreeze on my 2.1 a couple of weeks ago, that plug at the bottom unscrews completely and can be removed if needed. I had no problems bleeding the system at all, despite reading how difficult these are to bleed, I just poured 4 litres of water in first and topped up with 4 litres of antifreeze, did the usual squeezing of the rad pipes and all was done. One thing I will mention though, the plastic bleed screw on the small return pipe is very easily damaged, I had to replace it with a bolt of the same size, works a treat, but the actual opening in the pipe was blocked with carp, so if you have trouble bleeding then you may want to investigate this, I poked it with a small allen key and un-blocked no problem. Ready for another winter

marty1979 wrote: but the actual opening in the pipe was blocked with carp,

If I have exactly the same problem, will that be Mirror Carp?
ok, i'll get my coat

plod wrote:

marty1979 wrote: but the actual opening in the pipe was blocked with carp,

If I have exactly the same problem, will that be Mirror Carp?
ok, i'll get my coat

i can see you STRUTing about then when the jobs done jump up and do a half PIKE then you tell everybody about it so often they get sick of hearin you keep CARPing on about it
yep sounds FISHey to me

The only thing about working over the engine like that is being hunched over really makes my stickleback ache