He wasn't doing or changing anything before he could replace the clogged cat. He wouldn't be able to troubleshoot anything with a clogged cat, as it makes the engine run very bad, he said.
After i told him that my 300E had been doing less than 10 mpg for a period of 2 months, he immediately called for a price on a new cat, as he would bet anything on that it was toast. -It was.
He had seen cat's collapse from just cranking the engine over and over (fuel pouring through - no ignition).
Never criticize someone until you've walked a mile in his shoes. That way, when you do, you're a mile away -and you have his shoes!
'86 300E optically converted to '95 E300 (Sold)
-Blauschwarz on silver
-17" AMG & 15" AMG for winter