Coolant on bleed screw
 

For the last couple of days I have been checking under the hood and I have noticed a small amount of what I assume is coolant pooled up on top of the bleed screw. I havent noticed any large amount of coolant loss judging by the resovoir. Has anybody seen this before or know what I can do to stop it?

Attachment 42978


Regards,
Mike

my guess would be that the screw is cracked, the seal under the screw is bad, or both. Plastic hardens and cracks with age. (and heat)

this happened to my 03 disco when I put a standard T/stat in earlier this year when I was in Florida and broke the plastic bleed screw in the T piece, was not a good time. The cheapest place to get one from is BMW, about $7 inc tax. The bleed screw from BMW is reading from the parts invoice part number: 17-11-1-712-788 Description: Vent Screw. Get two on the understanding if you have a spare you will never break the first one but if you only get one then you will break that one and have to go back to BMW.... The Rover Gods are watching so beware!!!!! They do not have to be tightened very tight and can be easily broke, hence having the spare

Thanks, ill copy down that part number and head out to the BMW dealer. Good idea on getting two.

or two for almost the price of one. Land Range Rover Discovery Upper Radiator Hose Bleed Screw

Not to derail the thread but I have a somewhat related question. My bleed screw is located on the hose that clips into the fan shroud. Is this the "old style" or the "new style". If it is the old one, how important is it that I replace all hoses?

that coolant looks kinda dirty. could just be the lighting/location of it. perhaps due for a flush?

the BMW screw is also Brass not plastic

That is the old style hose and should be replace ASAP cause of the high failure rate. Rover brought out the new one 8 or so years ago to fix that problem.

The coolant in the resovoir looks nice and fresh and the water pump was replaced recently. I would assume the coolant was changed out at that time but I suppose I could be wrong. If the coolant looks clear in the resovoir is it the same throughout the system or am I assuming too much?

Regards,
Mike