Looks like I'll have to get a power steering pump eventually. I've been looking at non-MB branded parts as options. Looks like it's between a Bosch-ZF pump and LuK. LuK is the OE manufacturer I believe, but it's also about $200 more than the Bosch-ZF pump. Has anyone gotten the Bosch pump and has it been working well? Are there any advantages in getting the LuK pump?