Random Seatbelt Alarm While Driving

My car was intermittently not detecting that the seatbelt is fastened, randomly while driving. Possible solutions:

cleaning the seatbelt tongue with isopropyl alcohol -- the quickest and I was surprised it actually worked, because the tongue did not look dirty

getting a seatbelt extender

replacing the seatbelt tongue -- seems like a lot of work

disabling the seatbelt check, on Alfa Romeo it can be done only through the OBD connector, but you need a special software (alfaobd.com, 50EUR, windows, android -- I haven't tried it)

How To Replace the Accessory Drive Belt (Serpentine Belt) on Alfa Romeo Giulietta 1.4 MultiAir

This could apply to other cars in Fiat Chrysler group. Find the belt on the left of the engine. You can take a picture of the routing. Identify the belt tensioner by pulling on the belt and seeing which pulley yields. In my car it is the center pulley. It has a 13mm hex bolt on it. Hold it while you pull on the belt to see which way it turns as it yields. In my car it turns clockwise. I think there is a hole to lock the loosened tensioner in place, but I did not even attempt it due to difficult access. Use a ratchet and turn the tensioner with left hand and use the right hand to slide the belt from/onto the bottom pulley. It will be easier to put on a belt if it is longer rather than shorter. I got myself a rather short replacement belt and it seemed I had to turn the tensioner to the limit to put it on.

Tools used: a 1/2" ratchet with 24cm arm, a 13mm hex socket, head lamp.

Alfa Romeo Giulietta Worn Hatch Button Badge

This post is about replacing a hatch button badge that looks worn, but the button works fine. It seems to be a common issue for the model brought on by the way they are attached; I explain below. You pry the aluminum logo off the button with a knife - start with stabbing it near the edge toward the center. The logo badge is attached to the plastic button underneath with an adhesive. It is a 3 millimeter thick layer of soft adhesive that is only present in the center of the button. The adhesive not covering the whole button is most likely the reason for the wear, as the damage happens near the edges where there is no adhesive to support button pressing.

I attached a replacement badge using silicone just because I had some and it seems to have a similar consistency to the original adhesive and would be similarly easy to detach should I ever need to. I tried to distribute the silicone on the whole button, not just the middle, to prevent deformation on pressing. Silicone seems to hold it fine, haven't lost it yet.

As to the logo badge, you needed a 75mm wide one, the first one I bought, a 74mm one, did not fit. The badge is the same for the front and back.