Need help sizing a belt for my 190E
 

The belt tensioner has given up on my 190e and the belt looks a bit past it as well. So when I replace the tensioner I intend to put on a new serpentine belt. However I do not know what size belt to get.


My car is a fully euro 1990 190e 2.0, with no smog pump.


I got on rock auto and tried to use their European catalogue and pulled up a 1990 2.0 but it shows either no AC or no power steering. My car has both.


What years did US 2.3s not have a smog pump? Looking at my motor it looks like everything else is identical except for my lack of a smog pump. The belt on my car doesn't have any discernible numbers on it anymore. I was just going to order a belt for like a 1987 USA spec 2.3 if that doesn't have the pump.

Alternatively you could measure the length (circumference) of the old belt, usually the catalogs will list the belt length in mm. You could then try to pick out the most likely belt, I'd assume the old belt will have stretched in the area of about 10-20mm

That would for sure work, but belts are a lot cheaper online and my intent was to order the belt with the tensioner and cash in on some free shipping.

I'd try wiping the belt off w/ a clean rag and a little water, good chance you'll find the belt info.

The parts guy at the dealer looked in the euro catalogue. 1980mm same as US cars. $24 from the dealer, so I bought it from them.