Problem: Engine service soon + rough idle + sounds like lawnmotor?

em2b96p · 12-11-2009, 04:12 PM

Hello all:

I have a 2004 3.0i 6sp with 48000 miles. I am currently attending law school in MA and am 7 hrs away from my Z. I store it in my dads garage since I have no access to one here.

This morning I get an email from my father saying "Your BMW is showing an engine service soon sign. Also the idling is rough. Sounds like a single piston engine."

I have no engine mods to the Z other than a drop in K&N air filter. I take great care of the car and maintain it religiously. I wish i could see the car in person and wont get to see it till Winter break on the 19th.

We always go to a local guy's shop ( Smeltz in Lewisburg PA) who works on nothing but euro cars (BMW, Benz, Audi etc..). Although he has never seen the Z yet. The car is due in for a look sometime next week.

Before taking the car in are there any ideas what could be causing a problem?

Thanks for your help.
Steven

F360C · 12-11-2009, 07:40 PM

Chances are based on your description you have a failed coil... if your is out of warrenty it is a pretty easy DIY fix.

em2b96p · 12-12-2009, 04:00 PM

any way to test?
wheres the best place to order coils?

Dammmittt · 12-13-2009, 03:16 AM

Check for codes eiither at your dealer or an autozone. Sounds like a misfire, could be a bad coil pack or just bad fuel at your last fillup.

12-11-2009, 04:12 PM	#1
em2b96p Private First Class 15 Rep 184 Posts Drives: cbr600rr Join Date: Feb 2006 Location: philadelphia iTrader: (0)	Problem: Engine service soon + rough idle + sounds like lawnmotor? Hello all: I have a 2004 3.0i 6sp with 48000 miles. I am currently attending law school in MA and am 7 hrs away from my Z. I store it in my dads garage since I have no access to one here. This morning I get an email from my father saying "Your BMW is showing an engine service soon sign. Also the idling is rough. Sounds like a single piston engine." I have no engine mods to the Z other than a drop in K&N air filter. I take great care of the car and maintain it religiously. I wish i could see the car in person and wont get to see it till Winter break on the 19th. We always go to a local guy's shop ( Smeltz in Lewisburg PA) who works on nothing but euro cars (BMW, Benz, Audi etc..). Although he has never seen the Z yet. The car is due in for a look sometime next week. Before taking the car in are there any ideas what could be causing a problem? Thanks for your help. Steven
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12-11-2009, 07:40 PM	#2
F360C Major 366 Rep 1,373 Posts Drives: E86 S54 Join Date: Apr 2006 Location: Hoboken, NJ iTrader: (2)	Chances are based on your description you have a failed coil... if your is out of warrenty it is a pretty easy DIY fix. __________________ 07 Z4 M Coupe AW/IR
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12-12-2009, 04:00 PM	#3
em2b96p Private First Class 15 Rep 184 Posts Drives: cbr600rr Join Date: Feb 2006 Location: philadelphia iTrader: (0)	any way to test? wheres the best place to order coils?
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12-13-2009, 03:16 AM	#4
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	Check for codes eiither at your dealer or an autozone. Sounds like a misfire, could be a bad coil pack or just bad fuel at your last fillup. __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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