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Installation of Alfissimo Coolant Bleeding Screw Plug

7.1K views 27 replies 14 participants last post by  AC-QV  
#1 ·
Giulia or Stelvio with gas engines use coolant bleeding plugs made of recycled plastic, which are prone to heat and coolant deterioration, causing them to fail, and to release coolant fluid in the engine compartment.

See install pics of USA quality Alfissimo aluminum plug up against the firewall.

Remove plastic plug and rubber gasket, replace with Alfissimo Al plug and o-ring.

Start with an 8 mm, end with a 10 mm.
 

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#7 ·
#3 ·
why the 2nd account? Do you need assistance?
 
owns 2018 Alfa Romeo Giulia Ti Sport Q4
#5 ·
 
#10 ·
Altissimo aluminum plugs (2) replace the two plastic plugs, both located back by the firewall. The smaller bleeder screw located up in front of the turbo also gets brittle and breaks (ask me how I know). This bleeder can be simply eliminated by removing the clamp in front of the bleeder screw and then remove the clamp connecting the short rubber hose to the turbo pipe. Then reconnect the longer hose to the turbo pipe. Zero cost. Or you can pay Alfa $100 for a new updated hose assembly that effectively does the same thing. Warranty will cover this new hose assembly, but (drumroll) bleeder screw must fail first. Cleaning up the orange coolant from your engine bay is no fun (ask me how I know). Thanks Alfissimo !!!
 
#11 ·
I have mine coming this Thursday. I’ve also noticed that the two screws are against the fire wall. One is a bit more accessible under an exhaust probe (?). The other is a little closer to the positive charging post. This is naturally all speculation, until I change them, hopefullly this weekend.
 
#13 ·
So when replacing these on the 2.0L does a lot of coolant spill out? Or is it just a simple: unscrew old plastic screw, remove old O-ring, install new O-ring, screw in new metal screw?
 
#14 ·
a little bit, but nothing to be concerned over.
 
owns 2018 Alfa Romeo Giulia Ti Sport Q4
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#18 ·
owns 2018 Alfa Romeo Giulia Ti Sport Q4
#20 ·
Immediately. It's shit plastic that gets brittle and then snaps leaving the threaded shaft in the hole.
 
#23 ·
@JeFizz is correct. I recently chatted with my Dealer tech. He said he won't touch the bleeders on the hoses or the rads. He slightly overfills the reservoirs and runs it until the oil heats up, comes back the next day and tops em up. Done.
 
#27 ·
I'll come over and do it. I work for pizza and beer...
 
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