Howdily doodily,
Can anyone tell me what the light green caps with H and L on the cooling system are. Both seem to be pinch tight, just wondered what they were, what they do and if they have a "Setting" like tight or quarter turn from tight ? If you don't know what i mean let me know i'll sort pics out
thanks

 

would think your talking about the AIR-CON pipework....................nothing to do with the coolong system

alyn

 

It is to do with the aircon , they are just dust caps for the high and low pressure sides of the system . You attach the regas pipes to these nipples.

 

Thanks chaps.