This is for my '99 E300D with 226K miles.

Driving along with no issues when all of a sudden the battery charge warning light comes on. See photo. That's unusual because I rarely drive the car and while it sits in the garage, I always have it on a trickle charger. This morning the charger showed that it was fully charged.

Then the car is running just a little hotter than usual. Then it starts getting hotter and hotter and eventually hits the red line. I immediately turned the heater on and up to max and the temp came down to near normal. It was at this time that I figured I better pull off the road and see what's going on. As I was pulling off, I lost my power steering.

Called AAA and got the car towed home. It now sits in my driveway. Upon looking at things, I see a lot of slack in the belt and it is not on the alternator at all. See attached photos. The belt issue seems to be the explanation of everything.

As an FYI, the belt looks good, but hasn't been replaced since 2013, i.e. 60K miles ago. I replaced the spring for the belt tensioner 15 years ago and over 100K miles ago. I did all of that work myself, but at my age have probably forgotten more than I can remember. I'm guessing/hoping that there is a DIY video in the maintenance section, but any help or tips you guys have are appreciated.

Thanks.

Attached Thumbnails

     

__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 227,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 28,500 miles
'14 Smart electric cabriolet 28,500 miles
'15 Smart electric coupe 28,000 miles