1985 300D-TD will not idle smoothly, after start or after normal operating temp is reached , following has been done recently, new timing chain, valve adjustment, checked for vacume leaks, replaced all filters, injectors checked, ran a can of BG44 thru it seemed to make it worse, car starts fine and does not use any oil between changes 3k-5kmiles. Any suggestions, where do I go from here, Thanks
Ron Mieloch
1985 300DTD 195000
1999 E300D 45000
1999 E320 Wagon AWD