Book the skybridge for Sunday morning before you land — Saturday evening Jalan Alor for street food, optional drink on Changkat if you're not exhausted. Skip Batu Caves on a 48-hour window; traffic there eats half a day. Monorail + short Grab only — don't burn four hours in Friday rush traffic. Monday 8am flight means leave the hotel by 5:30am; KLIA Ekspres from KL Sentral takes 28 minutes plus check-in buffer.
Sat: check in BB, Jalan Alor dinner. Sun: Petronas morning, KLCC park, Central Market/Merdeka afternoon, early night. Mon: quick breakfast, airport by 6am for 8am flight.
Add Kampung Baru dinner one night if you want local Malay vs tourist strip — 15 min from KLCC.