View Single Post
Old 08-22-2017, 01:41 PM   #1
equ
Alphanumeric
 
equ's Avatar
 
Join Date: Aug 2005
Carmudgeonly Ride: 981S, 340i
Posts: 9,580
Replace one ignition coil or all six?

On the 535i a CEL that keeps coming back (and this time here to stay) seems to be due to a weakening coil (car still gets 27mpg) highway. Perhaps this coil is the reason for a shaky idle. I'm not sure.

Shop called me. If I replace one coil, it's $180 with labor. Should I replace all six for $580 (with labor) preemptively?

Plugs were done 10k miles ago.
equ is offline   Reply With Quote