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2002 ml320 all cats bad?

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Old Sep 17, 2012 | 04:50 PM
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scmopar
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From: colorado
2002 ml 320 500,500 miles 2017 and E550 20K miles
2002 ml320 all cats bad?
Vehicle is at the dealership, I have used them since the vehicle was new. Not too many trust issues. But I am wondering....

It has 190K miles on it.

I have been told all 4 cats are bad. The cost is 3K to install. Seems strange that all would be bad at the same time.

What are your thoughts?

We are going for 400K miles on the vehicle.

Bob
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Old Sep 24, 2012 | 09:27 AM
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2002 ML 320 & 2006 ML500
Highly unlikely. But what is your problem? Is the CEL on? If so have the codes been read?
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