Several possibilities; leaking windshield gasket or seal, leaking door window seal or weathstrip. To repair, check the 'How-To-Guides' feature on the AutoMD website.

yes like the man above has said, it is probably due to maybe if you bought the car used, the windsheild was replaced but not sealed correctly or, the reapairman didnt remove the old sealant before he installed the new windshield and then adding new caulking making the glass not seat correctly. Also, if you had the windshield replaced under your ownership, you werent happening to be standing right behind him were you? this makes most people nervous and can hasten someone to overlook key details.. lol. but yes. it is probably due to a bad weather stipping job.

The windows may be replaced or identified for a variety of reasons - it may or may not indicate the vehicle having been in an accident. Look for other telltale signs; body repair, signs of the chassis being straightened.

try benzworld.org

When it comes to a remote not working properly,and it's this old I would suggest investing in a new one. I'm not sure how you can test a remote against battery drain without some pretty sophisticated test equipment and know how. Seasons Greetings to ya

Several possibilities; incorrect coolant mixture (not at 50/50 anti-freeze and water mixture), faulty heater control valve, faulty / clogged heater core, faulty / clogged heater hoses, faulty heater blower motor, faulty blower relay or fuse.

The fuse/relay box is located in the left rear corner of the engine compartment.