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-   -   '95 S 320 w140 with rough idle problem (http://www.peachparts.com/shopforum/tech-help/209084-95-s-320-w140-rough-idle-problem.html)

BenzLoversCom 12-26-2007 01:35 PM
'95 S 320 w140 with rough idle problem
 
Can anyone help me with this, my '95 S 320 w140 has a rough idle problem and I changed the spark plugs but is still there. Should I change the wires and the coil also? How do I test the coils anyway?

If this helps, see photos here http://benzfanclub.ning.com/photo


thanks

Brett San Diego 12-26-2007 01:54 PM
Quote:
Originally Posted by BenzLoversCom (Post 1715336)
Can anyone help me with this, my '95 S 320 w140 has a rough idle problem and I changed the spark plugs but is still there. Should I change the wires and the coil also? How do I test the coils anyway?

If this helps, see photos here http://benzfanclub.ning.com/photo


thanks
What condition are your engine compartment wiring harnesses in?

Brett

Arthur Dalton 12-26-2007 02:40 PM
Start by changing each of the 3 plug to coil connectors under each coil and use Bosch F8DC4 plugs..
..if the harness looks good...........


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