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  #1  
Old 03-25-2019, 04:53 PM
p598738 p598738 is offline
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Mein Auto: Z4 2,5 and 3.0
Service Engine Soon

2005 2.5 75K miles.

Just replaced the valve cover gasket and plugs.

Not soon after the above I am getting 'Service Engine Soon' warning light. It is solid and does not blink. The owners manual says that 'it indicates a fault in the emission-related electronic systems'.

Might it be related to the valve cover replacement ? Is there a fault code stored ? Must I really take the car to BMW or can Auto Zone read the code for me ?

Thanks for your thoughts and advice.
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  #2  
Old 03-25-2019, 06:38 PM
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BostonB6 BostonB6 is offline
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Autozone should be able to read the code. Any chance you cracked the cover when removing it?
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Old 03-26-2019, 12:13 AM
Andyz4 Andyz4 is online now
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Does the car run ok otherwise? I would start by double checking the coil to plug connectors, sometimes it takes a firm push to get them to pop onto the plugs. Also recheck any other electric connections you may have disturbed, or if there is a hose you left off or that got cracked in process. If you find the problem, it may need a few start cycles before SES light goes out. If you don't, Autozone scanner is worth a shot but is likely generic OBDII and not specific to BMW.
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Old 03-26-2019, 03:59 AM
p598738 p598738 is offline
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Originally Posted by BostonB6 View Post
Autozone should be able to read the code. Any chance you cracked the cover when removing it?
Could have gotton cracked. BMW dealership did the job.
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Old 03-26-2019, 04:05 AM
p598738 p598738 is offline
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Quote:
Originally Posted by Andyz4 View Post
Does the car run ok otherwise? I would start by double checking the coil to plug connectors, sometimes it takes a firm push to get them to pop onto the plugs. Also recheck any other electric connections you may have disturbed, or if there is a hose you left off or that got cracked in process. If you find the problem, it may need a few start cycles before SES light goes out. If you don't, Autozone scanner is worth a shot but is likely generic OBDII and not specific to BMW.
The car is running fine. My concern is that the problem could get worse. As I said above, I didn't do the job. the dealership did it.

I guess I will have them look at it.
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Old 03-26-2019, 07:46 AM
jman1975 jman1975 is offline
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Completed this exact same project (VCG & spark plugs) last fall; reassembled everything and had no issues. Like others are saying, check for cracks. I -did- chip my cover trying to remove it, but nothing detrimental has come from it, just used a little extra gasket sealer on that particular corner.

Curious to know what code is being thrown when you find out!
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Old 03-26-2019, 09:30 AM
Andyz4 Andyz4 is online now
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Quote:
Originally Posted by p598738 View Post
BMW dealership did the job.
Sorry-- you did mention that. Definitely take it back, they probably left something undone.
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Old 03-26-2019, 11:35 AM
p598738 p598738 is offline
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Mein Auto: Z4 2,5 and 3.0
Codes:

P1449 Diagnostic Module Tank Leakage (DM-TL) Pump Current Too High

P1447 Diagnostic Module Tank Leakage (DM-TL) Pump Current Too High During Switching Solenoid Test

Not sure what this is all about.
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Old 03-27-2019, 07:47 AM
jman1975 jman1975 is offline
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Quote:
Originally Posted by p598738 View Post
Codes:

P1449 Diagnostic Module Tank Leakage (DM-TL) Pump Current Too High

P1447 Diagnostic Module Tank Leakage (DM-TL) Pump Current Too High During Switching Solenoid Test

Not sure what this is all about.
saw this older thread regarding P1449 -> https://www.bimmerfest.com/forums/sh...d.php?t=794694
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  #10  
Old 04-23-2019, 06:59 AM
p598738 p598738 is offline
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Location: Maine Florida
 
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Mein Auto: Z4 2,5 and 3.0
Quote:
Originally Posted by p598738 View Post
Codes:

P1449 Diagnostic Module Tank Leakage (DM-TL) Pump Current Too High

P1447 Diagnostic Module Tank Leakage (DM-TL) Pump Current Too High During Switching Solenoid Test

Not sure what this is all about.
Guess what !!! Procrastinated long enough and the SES light went off. No explanation.

Anyone else have such an experience ??
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