Swedish Kappa with engine problems

[Tommy]

Hi,
anyone know where to begin: Suddenly the 2.0 L 5-cylinder engine runs with four cylinders only and the exhaust smells somehow "acid-like". Too much fuel?

The spark plugs were changed a month ago, the thermostat was juts changed one day earlier because earlier the engine didn't get properly warm. Connection there?

Has anyone an extra motor for the driver side power window...?

Brgds,
Tommy

[cobra]

I experienced similar problem when the cable of the spark plug was damaged. Some servicians have the strange habit to pull the cables catching them too far from the plug. It damages the cable, soonar or later. Especially if the cables lie deep in the motor.