need advice on engine performance
 

hi all,

have some problems with 230E M102 and if somebody has a solution is welcomed.

1) cold start problem. have to do cranking for almost 5 seconds. Checked the water temp sensor and seems fine.(it seems to be little over reading; 4.5K at 20C). Is this a problem of OVP relay. How to check it??

2) once started, tend to be very sluggish on acceleration (actually doen't accelerate on heavy throttle). once reached optimal temp it runs fine.

3) idle is fluctuating between 600-750.

4) overall i don't feel much power in acceleration but the top speed is good. i can make 195Km/h.

please advice.