Hello. I have a 1992mod 230E with an idle problem that doesnt happen all the time. The idle goes up to around 2500-3500rpm. It can happen when the engine is warm and the car has been running in park for a while and the temperature gets higher, or after high load. If i stop the car and wait for a while before starting it again its back to normal. So the problem doesnt always occur. The car also stalls when cold if i dont press the gas a bit, but too much and it stalls. Thanks in advance and hope someone can help!