The car is a 1989 260E.,
I, a Mercedes dealer and 2 independant mechanics have tried to diagnose my two problems (probably related) without success.
When cold, the engine is extremely hard to start. I need to crank it for 15 / 20 seconds before it starts. Once started, it runs fine.
When at normal operating temperature, the idle speed is very low (400 / 450RPM and sometimes stalls at traffic lights. Starts right up.
The following recently been recently done:
Valve guides/seals, full tune-up (cap, rotor,wires, spark plugs, all filters replaced (including fuel filter) OVP replaced, temperature sensor. injectors cleaned.
Any idea? Thanks
jackD