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1998 S210 E280 T
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41 Posts
Discussion Starter #1 (Edited)
Hi guys.

Just found out today from my mechanic that my previous owner had someone open up the catalysators, emptying them and welding closed again, which explained the rather loud motor sound from my '98 E280 and stronger smell of pollution than from my newly sold '98 E320.

My mechanic explained that this is sometimes done so that new catalysators wouldn't have to be bought because of high price which I believe is close to the truth.

My question is this: Can this do harm to the engine or the car in some way? Does it reduce the power and possible increase fuel consumption not having fully working catalysators?
 

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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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7,035 Posts
Correct - non-working cat's cause execess fuel consumption - I assume with E280 you are foreign, here in the US most areas it is acceptable to weld-in "universla" catalytic converters that are cheaper than catalytic converters specially built as bolt in repacement for the original Mercedes.

Keep the faith !
 

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95 S350, 98 E300
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73 Posts
"Correct - non-working cat's cause execess fuel consumption"

but no cats - reduced fuel consumption and more power. why do you think every tuner or racer trying to get rid of them as soon as possible???
 
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