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#1
07-15-2006, 04:13 PM
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'99 230SLK Compressor (Supercharger noise)
OK, I have a '99 SLK230 and the Supercharger is making a noise at an idle when it is engaged. It sounds like marbles rattling around (I'm diagnosing it as bearing noise). It clears up when I go rev it up and the compressor is engaged. I get no noise when the compressor clutch is not engaged. This ia all on the supercharge and has nothing to do with the A/C. I pulled information from WIS and it says that the supercharger (they call it the compressor) needs to have it's oil supply checked and special oil added. I was dismayed today when I wnet to my local MB dealer and they said it didn't have a separate oil supply and used the Mobil 1 from the engine. I then went home and called them back with the part number supplied in WIS for the special compressor oil and they looked it up and siad they didn't stock it and it was $80+ bucks for whatever unit they supplied it in (liter, I'm thinking). So, has anyone had a supercharger failure or problem? Anyone fixed one or paid for a new one? I have no engine lights on or anything like that but the nosie is not normal nor was it there earlier in the vehicles life. I've owned it since new.
I'm thinking I'm going to have to tear into it and fix it so any experiencd perspectives on the subject? Thanks, Wayne Hyde 
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#2
07-17-2006, 08:29 AM
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Supercharger oil comes in a 5oz bottle...about $15 an ounce...
Possibly the belt tensioner(supercharger) is the problem. The supercharger lists for $1500+ try the oil first..
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#3
07-17-2006, 03:22 PM
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Quote:
Since we're on the subject, is it normal to add oil to the supercharger?
__________________
2012 E350 Bluetech
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#4
07-17-2006, 04:21 PM
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Eaton supercharger oil MB part number is 000-989-62-01 lists for $50. & contains 4oz.
Guess that is about $12. an ounce
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#5
07-20-2006, 02:13 PM
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Supercharger oil replacement?
Does anyone know if there is a maintenance interval for the supercharger oil? Does it need to be replaced, and if so, at what mileage? Many thanks.
__________________
+AMDG+ 2005 W203 Running as fast as I can to stay behind!! 
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#6
07-21-2006, 07:49 AM
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Supercharger oil
I had a supercharged Pontiac Bonneville SSEI and bought a small bottle of the special SC oil for about $20. It had a special filler port with a separate screw fitting that I had to check every six months and the oil had to be up to the bottom of the filler hole (on top of the supercharger unit). I only added a miniscule amount of oil a couple of times over 3 or 4 years. Adding the oil to your Merc may solve the noise problem and I will bet that the GM SC oil at
$15 to $20 for a five ounce bottle will work fine. It is just a special heavier lubricant that withstands the SC pressures and heat.
__________________
Ben Harrison Carter 1999 Mercedes ML320 87K 1992 Mercedes 300CE 89K 1995 Corvette 29K -- Sold Dec 09 1989 Mercedes 420SEL 99K -- (Sold 4/08) 1968 Mercedes 230S (106K) (Sold 9/06)) 1976 Mercedes 450SEL 130K (Just sold - 06) 1961 Mercedes 220Sb (sold years ago)
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