Similar problem on my 1997 Sebring LXi. You may want to clean or replace your EGR valve (Exhaust Gas Recirculation). It's located between the firewall and engine. Very simple to replace.
No.
No.
You could use the non-convertable seats in a convertable Sebring, but there would be a huge safety issue as you would not have seatbelts. The seatbelts are built in to the Sebring convertable seats. The bolt down assemblies for both however are identicle.
No.
Grand touring coupe
A Chrysler Sebring does not have a reset switch.
If both are the same body style, sedan, coupe or convertible.If both are the same body style, sedan, coupe or convertible.
6x9s
5W30
No.
Coupe is different than sedan. See sources and related links below for a wiper blade size listing for the 1999 Chrysler Sebring.
The first Chrysler Sebring was a Coupe (hardtop) & was released in 1995, the Sebring Convertible didn't get released until the following year - 1996.