Originally Posted by
safrick
I recently bought a XF off of a past member. Car has 160k miles on it, the clutch is going and there is a slight knock at idle. I've already dropped the car at the mechanic to do a 3.7 swap. I should have my new LUK clutch tomorrow and I'm shopping for a motor to buy within the next week or so.
Any advice on buying the used motor? I'm looking for a motor with 100 miles or less, an 03-05 ML350 or 06 S350 engine. I think as long as I get a used one with warranty that has been tested running and for compression I should be ok..
I told the guy who's doing the swap that it's pretty straightforward except for the mechanical fan. Is that correct? Anything else I should tell him?
safrick, forgive the delayed reply, sounds like you've done your research. You are correct about the mechanical fan clutch as there is no need for one as our chassis utilizes an electrical cooling fan. The only thing that's required for the engine to run (easily) is to swap the engine wiring harness from the crossfire's 3.2 to the ml/s 3.7, it's plug and play.
Keep us posted on how it goes!