On my OM642.886 the starter A 005 151 29 01 with 1.7 Kw is installed. On the OM 642.887 with start/stop, the starter A642 906 10 00 with 1.8 Kw is installed. Since the start also with heat and full battery became more and more strange, I removed the starter times and looked for the coals. They were almost kpl. down. The unit repairer here around the corner had them built in and there. Before that he made a power measurement of the starter and there were only 1,1 Kw. He also said that the starter with 1.7 Kw is too weak for this engine. Because relatively many have been repaired in recent years. As a counter-example he called OM612 with 2.7 l, here were 2.3 Kw starters installed. Has one of you ever changed its starter for a stronger one (z, for example, 2.0 Kw or more)? Are there any stronger starter for OM642, e.g. for taxi or sprinter? There is also the 9V anchor variant but there is nothing suitable for the O M642.