Hello guys, have a problem with my speedometer. Engine is off and speedometer shows at once 170 km/h. If I then drive is 170 the 0 point. i.e. if I drive 50 shows the 210. the needle trembles then always a few times. A few days ago the speedometer needle is hung at 0 no matter how fast I was. Then I removed it and turned it on the arrow. Then it went again. Now spins again. Please help me. What can you do there? Except new speedometer. Thank you in advance Citroen C5 Bj.2 002 HDI 2.2