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Old 11-05-2003, 08:56 AM
PK2 PK2 is offline
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Exhaust System in 1974 280C California

I am looking for proper MB Part Numbers for the exhaust system for a 1974 280C with California Emission Control System. This car has these weired thermal reactors, EGR, etc. and apparently the middle muffler is (was) not a standard 280C muffler. The same for the front pipes. The end muffler is easy, it is this standard "single-in, single-out" one.

Any help will be appreciated.

1974 280C
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Old 11-05-2003, 09:25 AM
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Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
Cannot help with the number, but can confirm your suspicions.

My dealer parts book shows only the standard 280C configuration with dual pipes into the middle muffler and a single to the end. My "glovebox" book shows a second arrangement with a single pipe all the way from the manifold to the middle muffler. This second type is Group 49/3. I think this is the California version.

I would try Caliber Motors in California at 714.777.0400 for the part number, but I would check with for the actual replacement, since the price of the Mercedes part could be, uuuhhh, a lot of money.
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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Old 11-05-2003, 09:50 AM
PK2 PK2 is offline
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Thanks Chuck for the feedback!
1974 280C
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Old 11-05-2003, 11:20 AM
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Join Date: Aug 2002
Location: near Scranton, PA
Posts: 5,335
Timevalve ( has PN's for a LOT of stuff. Including yours.
The middle muffler is 2 pipes in, 1 pipe out: MB P/N 114 490 08 15
The rear is 1 in, 1 out: MB P/N 114 490 05 15
According to the timevalve chart, it's 1 piece from the 2 engine pipes to (and including) the middle muffler, then 1 piece to (and including) the rear muffler. Total of 4 pipes (2 engine pipes, 1 middle muffler/pipe ass'y, 1 rear muffler/pipe ass'y). - refference

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