Codes P106,P0410,P0171, P0304, P0303,P0300,P0730P, P0174P

2003 MERCEDES BENZ S500
303,000 MILES • 5.0L • V8 • 2WD • AUTOMATIC
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ERIC92866
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OBD codes P106,P0410,P0171, P0304, P0303,P0300,P0730P, P0174P. Exhaust rattle, reduced power.
Jun 24, 2017 at 8:47 PM
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Hello,

It sound like the catalytic converter has fallen apart and it blocking the exhaust from exiting the engine which will explain the reduced power. Here is a guide the can help you get the problem fixed.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

and if it is bad here is a guide that will show you what you are if for when replacing the unit.

https://www.2carpros.com/articles/catalytic-converter-replacement

Once the repair have been done clear the codes to recheck

https://www.2carpros.com/articles/check-engine-light-clear-codes

Please let us know what happens, we are interested to see what it is.

Cheers, Ken
Jun 27, 2017 at 11:49 AM