Sorry I am knew and this is my first post. My wipers work very slowly sometimes and not at all other times. Local garage thinks it's the linkage. I have a X reg 2001 1.9tdi zetec galaxy. Does this motor have a 3 or 4 bolt linkage. Also is this a mark1 or mark 2. Where can I get this front wiper arm linkage at a reasonable cost. Please help KAL