SL/R129: Cat issues:>
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Joined: Apr 2007
Posts: 6,171
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
If it is eating cats at the rate of every 20k miles
something is amiss in the engine. Have a compression test performed and a leak down test.
Bad valves,poor combustion,excessive oil use are sure cat killers.
Any Check engine codes?
$575 CARB approved stainless whole unit ea.
Bad valves,poor combustion,excessive oil use are sure cat killers.
Any Check engine codes?
$575 CARB approved stainless whole unit ea.
Senior Member
Joined: Nov 2004
Posts: 282
Likes: 3
From: Bradenton, FL
'87 560SL Sold, '99 SL500 For Keeps
Thread Starter
Newbie
Joined: Sep 2010
Posts: 9
Likes: 0
From: Miami, Fl
SL600
BAD CATS
THANKS FOR YOUR RESPONCE. THE CAR IS IN LIKE NEW CONDITION. THE FIRST SET OF CATS WERE DONE UNDER WARRANTY, THE LAST SET WERE AFTER-MARKETS, AS MERC WOULDNT HELP ME$$$ DLR CAN FIND NO REASON FOR THE ISSUE. I'M TRYING ANOTHER ALTERNATIVE...... COMPUTER DWNLOAD, WITH A COMPLETE DUAL EXHAUST SYTEM MINUS THE CATS.......
Last edited by 600benz; Sep 22, 2010 at 04:26 PM.
Senior Member
Joined: Nov 2004
Posts: 282
Likes: 3
From: Bradenton, FL
'87 560SL Sold, '99 SL500 For Keeps
I haven't heard much good about after-market cats; sorry they didn't work out for you either. Mine have just started the infamous 'death rattle' and I have to solve this problem too.
If you eliminate the cats in your new config, what, if anything, do you do with the existing 02 sensors?
Bob
If you eliminate the cats in your new config, what, if anything, do you do with the existing 02 sensors?
Bob
