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Hey all,

I am a newbie owner of 96 E320. Went in for smog check and the person performing the work was not able to get any readings after plugging into the car for the vital diagnostic info. Tried two diff. places and no avail. Took it to dealer and they say its bad diagnostic module so it will be $1100 for parts/labor. They can't get the "DM" to display any of the codes so no smog test can be performed with no communication. Dealer recommend above job then drive for a week and then bring back in for assessment after its gone thru its paces. Then perform smog check if its o.k. If not then they want to change out "air mass meter/sensor". Sounds like a shstick job to me. Could this be something else more simple or less expensive. What is next step to take?

Anyone else experience this?
 
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