Emergency AC compressor bypass tip!
What I decided to do, since the shattered clutch left enough clearance for it, was to install a shorter serpentine belt eliminating the AC compressor temporarily. But searches on this and other MB forums gave me no hint as to the belt needed to do so.
Thanks to the patience of AutoZone staff and a couple hours of trial and error/back and forth, I found that the perfect belt to do this was their "Duralast 910K6" or "6PK2310" (same belt-different number.) Just pull back the tensioner, run the belt from the PS pump directly to the crank pulley instead of where the AC pulley would normally go and the job's done.
A 100mph road test for 10 miles proved that it worked like a charm!
What I decided to do, since the shattered clutch left enough clearance for it, was to install a shorter serpentine belt eliminating the AC compressor temporarily. But searches on this and other MB forums gave me no hint as to the belt needed to do so.
Thanks to the patience of AutoZone staff and a couple hours of trial and error/back and forth, I found that the perfect belt to do this was their "Duralast 910K6" or "6PK2310" (same belt-different number.) Just pull back the tensioner, run the belt from the PS pump directly to the crank pulley instead of where the AC pulley would normally go and the job's done.
A 100mph road test for 10 miles proved that it worked like a charm!
So I bypassed my ac compressor and the belt fits but seems to be pretty close. I started my car and it doesn't seem to be rubbing or making marks on the belt itself so it might be ok... maybe I will try fiiling it down a little, thanks!
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I put it on with my daughter's help in a motel 6 parking lot (didn't remove the radiator fan so it was tight to get at). We were back on the road and the had no problems the rest of the way.
BTW, the GL450 takes a 17mm socket on the tensioner pulley to move it so you can get the belt on...
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I put it on with my daughter's help in a motel 6 parking lot (didn't remove the radiator fan so it was tight to get at). We were back on the road and the had no problems the rest of the way.
BTW, the GL450 takes a 17mm socket on the tensioner pulley to move it so you can get the belt on...
The part number was correct and took 5 minutes to install.
Thanks so much!
I needed my car fixed to get to work, but don’t want to spend $700 on new AC compressor for a car that does not have much life left.
I used the Duralast 910K6 and my car is a 2005 Mercedes C240 wagon.
What I decided to do, since the shattered clutch left enough clearance for it, was to install a shorter serpentine belt eliminating the AC compressor temporarily. But searches on this and other MB forums gave me no hint as to the belt needed to do so.
Thanks to the patience of AutoZone staff and a couple hours of trial and error/back and forth, I found that the perfect belt to do this was their "Duralast 910K6" or "6PK2310" (same belt-different number.) Just pull back the tensioner, run the belt from the PS pump directly to the crank pulley instead of where the AC pulley would normally go and the job's done.
A 100mph road test for 10 miles proved that it worked like a charm!
What I decided to do, since the shattered clutch left enough clearance for it, was to install a shorter serpentine belt eliminating the AC compressor temporarily. But searches on this and other MB forums gave me no hint as to the belt needed to do so.
Thanks to the patience of AutoZone staff and a couple hours of trial and error/back and forth, I found that the perfect belt to do this was their "Duralast 910K6" or "6PK2310" (same belt-different number.) Just pull back the tensioner, run the belt from the PS pump directly to the crank pulley instead of where the AC pulley would normally go and the job's done.
A 100mph road test for 10 miles proved that it worked like a charm!
What I decided to do, since the shattered clutch left enough clearance for it, was to install a shorter serpentine belt eliminating the AC compressor temporarily. But searches on this and other MB forums gave me no hint as to the belt needed to do so.
Thanks to the patience of AutoZone staff and a couple hours of trial and error/back and forth, I found that the perfect belt to do this was their "Duralast 910K6" or "6PK2310" (same belt-different number.) Just pull back the tensioner, run the belt from the PS pump directly to the crank pulley instead of where the AC pulley would normally go and the job's done.
A 100mph road test for 10 miles proved that it worked like a charm!
Emergency need ac clutch went.
original belt 937k6.
910k6 belt worked on 2002 S500
Last edited by Kirk Turner; Dec 9, 2021 at 01:08 PM. Reason: details
My car was around 165k, approaching 170k miles when its AC Compressor Clutch seized and got me stranded on the highway in the middle of nowhere in PA.
I made a YouTube Video explaining the symptoms and what you can do if you're stranded but close to or near an auto parts store.
LINK:
"Duralast 910K6" or "6PK2310" Serpentine belt works like a charm in 2023 for the M112 Motor. Thank you so much @Dadzcad
OEM / Interchange Numbers: 0019937896, 2W9Z8620GB, 3W3Z8620AA, 3W7Z8620AA, 53011035, 8973139360, AJ89191, C2C11654, C2C26235, C2C28041, C2C37063, L3K915909A
Effective Length (IN) 91.0 Effective Length (MM) 2310.0 Inch Number 910K6 Rib Quantity 6 Top Width (IN) 0.84
Here's a diagram I took:
Last edited by urielartgarage; Oct 7, 2023 at 11:15 PM.
OEM / Interchange Numbers: 0019937896, 2W9Z8620GB, 3W3Z8620AA, 3W7Z8620AA, 53011035, 8973139360, AJ89191, C2C11654, C2C26235, C2C28041, C2C37063, L3K915909A
Effective Length (IN) 91.0 Effective Length (MM) 2310.0 Inch Number 910K6 Rib Quantity 6 Top Width (IN) 0.84
Here's a diagram I took:
What I decided to do, since the shattered clutch left enough clearance for it, was to install a shorter serpentine belt eliminating the AC compressor temporarily. But searches on this and other MB forums gave me no hint as to the belt needed to do so.
Thanks to the patience of AutoZone staff and a couple hours of trial and error/back and forth, I found that the perfect belt to do this was their "Duralast 910K6" or "6PK2310" (same belt-different number.) Just pull back the tensioner, run the belt from the PS pump directly to the crank pulley instead of where the AC pulley would normally go and the job's done.
A 100mph road test for 10 miles proved that it worked like a charm!
What I decided to do, since the shattered clutch left enough clearance for it, was to install a shorter serpentine belt eliminating the AC compressor temporarily. But searches on this and other MB forums gave me no hint as to the belt needed to do so.
Thanks to the patience of AutoZone staff and a couple hours of trial and error/back and forth, I found that the perfect belt to do this was their "Duralast 910K6" or "6PK2310" (same belt-different number.) Just pull back the tensioner, run the belt from the PS pump directly to the crank pulley instead of where the AC pulley would normally go and the job's done.
A 100mph road test for 10 miles proved that it worked like a charm!




I think I'll have to figure out what belt I need and keep it with me. I already carry tools so if it broke I could replace it easily I hope. Nobody mentioned routing for M111 engine though. Looks like I'd have to go to AutoZone and try lots of different belt sizes as people suggested. The op did not mention what car he has. I suppose the other way would be to compare the belt sizes between the two vehicles and how much smaller the replacement one was and subtract that much from my belt. At least it would be a starting point.



