I am having a problem in the morning starting the engine of my Polo 1.9 SDI 2000. I have to attempt 2-3 times to start it and after it starts, it makes a strange noise and throw out smoke. I checked the engine heaters (all are OK). In the same day if I let the car rest for 10 hours, the car doesn't have trouble starting; it start on the first attempt. I also checked the oil; it has enough (I use 10w40). Any idea what the problem might be or where to go next?
How are you starting the car? Do you wait till the glow plug light goes off before cranking?
I found that in my TDI, especially in winter, I had to cycle the glow plugs a few times and then it started no problems