SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: Floating part in gas tank

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Old Oct 8, 2013 | 09:25 PM
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luisjr's Avatar
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SL 55
Floating part in gas tank

Hi,
A couple of days ago, a sound comes from the trunk as if something is floating inside the gas tank. It's a really annoying sound. My technician says that there is now way to get the part out without cutting the tank and welding it back.

Does anyone knows what this is and if that is the only solution?

Thants
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Old Oct 8, 2013 | 10:08 PM
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PS94's Avatar
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From: Alberta, Canada
2004 SL55 AMG Kompressor
The top of the baffle in the tank has come loose. there's a fix with a spring, some have used magnets, some have simply bashed it until the baffle was wedged and stopped the bonking.
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Old Oct 9, 2013 | 10:12 AM
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alx
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Originally Posted by PS94
The top of the baffle in the tank has come loose. there's a fix with a spring, some have used magnets, some have simply bashed it until the baffle was wedged and stopped the bonking.
post of the year
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Old Oct 9, 2013 | 12:46 PM
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From: Central WI (BFE)
SL55, ML500 & Acura TL
Originally Posted by luisjr
Hi,
A couple of days ago, a sound comes from the trunk as if something is floating inside the gas tank. It's a really annoying sound. My technician says that there is now way to get the part out without cutting the tank and welding it back.

Does anyone knows what this is and if that is the only solution?

Thants
Yep, loose fuel baffle. One of the notorious SL (R230) maladies. I had this same issue as has a number of members. The dealer replaced the tank for me under my extended warranty. I don't remember the cost exactly, but thinking it is about 4k. Tons of labor as they have to take apart about half of the car.

Check out this link:
https://mbworld.org/forums/sl55-amg-...-gas-tank.html

Super Monkey has a pretty good solution that seems to have worked.

Good Luck!
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Old Oct 10, 2013 | 05:53 AM
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Currently: 2019 E450 AWD, Previous: 2002 CLK55 Cab
Are there particular years when this defect cropped up?
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Old Nov 12, 2013 | 06:50 PM
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From: Greenville, TX
2014 Corvette Stingray Convertible
I had the same fuel tank baffle issue when I had my old 2003 AMG. Cost about $900 for the tank and about $1000 labor. Yes, this is a known issue within MB AMG owners.
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