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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Missfire yellow engine light (outside lit)



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      09-12-2011, 10:49 AM   #1
oab e90 330i se
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Missfire yellow engine light (outside lit)


Newbie here, Recently purchased 330i Se. Enjoying it very much apart from the following. 100miles into a journey suddenly reduced power. Engine was missfiring. Yellow Engine light (edge lit up) Kept it at 40mph (anymore was vibrating the car) for a couple of minutes before pulling over for closer inspection. The car was misfiring badly (5 cylinders maybe less) Sounded like my old VW Jetta when the plugs were gone.
Turned off the engine (feeling depressed for a minute) and then turned it back on.
This time No engine light at all - and running fine again all the way home. (didnt really go above 3k rpm)
So........I have a feeling this maybe a Coil pack on its way out? Either way dealership want 90 to diagnose it.
Call is fully serviced and asking for plugs in 7k

-Will the malfunction be recorded?
- Any advise (apart from DIY if its the coil pack or plugs)
oab e90 330i se is offline   Wales
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      09-14-2011, 05:44 AM   #2
oab e90 330i se
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Ignition coil change

Well it really comes to something when you get to reply to your own thread post!

Anyway.....nows the time I really need a reply.

Turns out it was a missfire cylinder 4 - Ignition coil.

I've bought the part and Im going to fit it at 1pm Today!

So......Once Ive got all the gubbings out the way and the cover off - is cylinder 4 obvious or labeled?

If not could someone be so kind as to send a pic. or tell me front to back or left to right.

Comence work in Tminus 120mins GO!
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