Car = 1992 500e
I was running a bunch of errands yesterday (stop, start, stop, start), and at the end of the day, as I fired the car up, I noticed that I had a belt squeal. Pretty classic squeal (starts out high pitched, settled down, then squeals at the same "RPM" as the motor, then, after a couple seconds, it goes away).
Huh... I got home, and of course it wouldn't do it, so I parked it and figured I'd take a look this morning when it was cold.
Sure enough, I fire it up, and it squeals right off the bat. I have the hood popped, and it looks/sounds like the far left (left standing in front of the car, so that is actually passenger side... so maybe MB people call this "left") side of the Serpentine belt routing. Feels like Power steering, but I have no leaks... So I shut the car off, and start feeling around the belt, and it is SUPER loose. Like loose enough that I could probably take it off by hand if I wanted to. Hmmm...
At first I thought it might be one of those "the belt only tensions under power" things, but it doesn't look like it. I came inside and read up a little, and it seems like the 1992 has a manual tensioner? Looking at the marks on the body of it, I have a couple of "hashmarks" to go, but do you have any advice about tightening it?
Also, if I have a squealing belt, I realized it is a good idea to have a spare. What is the correct belt for the engine in that car? Is it the 1992?
it looks like the correct tensioner is P/N 119 200 02 70?
Looks like 230.00 through Parts.com?
Is there a special trick to tensioning it? I went out and cranked it a little with a big long 19mm wrench, and it seemed to work a little, but I am thinking replacing it is the best plan.
Any advice on this one?
Which belt is the correct one?