Date registered: Nov 2005
Vehicle: '83 W123 200 '98 E200 Kompressor (both Euro-spec., 200 in Portugal, E200 Now in Canada!), '08 B200
Location: Toronto, Canada
Mentioned: 2 Post(s)
Quoted: 33 Post(s)
Clutch pulley? Not familiar with the name...probably just an M-B fancy name or the garage making stuff up. The next question I'd ask is what shop this is and if you know them to be trusty.
Anyways, belt tension on modern cars is done with a tensioner and pulley assembly. Basically a spring applies tension to a pulley which keeps the belt at the right tension. So I don't think you're having Alternator problems. I think your tensioner pulley bearing seized (age, km, or sometimes a dust/grease seal giving out and the bearing looses its lube) and the belt kept sliding on the pulley until it melted or destroyed itself. Any burning rubber smell or tiny marbles of rubber?
Once the belt goes, the alternator stops (spun by the belt) and the light would go on.
What's the repair bill or quote? What parts?
Lastly, please fill in your profile with car info and location. You're obviously not in N.A., since it's a diesel, but maybe you're close by to some of the guys across the pond.
Paul (Paulo Santos)
'83 W123 200, '98 W210 E200K, '08 W245 B200
* Feel free to PM me if needed *