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  #11  
Old 06-16-2021, 11:46 AM
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Quote:
Originally Posted by Roberto G. View Post
I did a scan and got only 1 fault code (P1093).

Per Google:
P1093 BMW - Pre-Catalyst Fuel Trim Too Rich Bank 2

P1093 BMW Possible Causes
What does this mean?
Low fuel pressure
Large vacuum leak on engine
Faulty Mass Air Flow (MAF) sensor
Faulty Ignition
Faulty fuel injector

P1093 BMW Meaning
Pre-Catalyst Fuel Trim Too Rich Bank 2 is the generic description for the P1093 Bmw code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1093 Bmw OBDII code.

Notes:
-I do not have any warning lights on in my dashboard.
-Sometime I smell gas in the back of the car (driver side) when I park the car.
-I do have an appt with a BMW mechanic on 6/17.

Question:
Should I be concerned? Any advice will be greatly appreciated. Thanks!
One possible cause is the MAF is underreporting the amount of air that is passing through it. Even though the MAF may appear to be good, you really can't tell by appearance. The resistance or OHM setting of the MAF is more important than the physical appearance. You can read the amount of air passing through the MAF in real-time data if you have a decent scanner. Post the data (g/s) don't use any other units like lb/hours. I'm not going to do the conversion for you. If you do decide to replace the MAF don't buy that cheap crap sold on eBay or Amazon. Buy a genuine Siemens MAF.
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  #12  
Old 06-16-2021, 12:04 PM
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Thanks guys. I have v6 3.0.
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  #13  
Old 06-16-2021, 04:54 PM
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Quote:
Originally Posted by Roberto G. View Post
Thanks guys. I have v6 3.0.
It's a straight 6. BMW never put a V6 in the X5. I'm not sure BMW ever put a V6 in anything.
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  #14  
Old 06-16-2021, 05:08 PM
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Angry Update

Well, this AM I found out that the car is dead so I suspect the battery died overnight.
Last night AutoZone checked the battery and alternator, it passed both checks.

Today I will try to jump the battery. If the issue is the battery then I will replace it this evening so I can drive the car to the bmw mechanic in the AM.

I swear, I started to regret buying the X5.
Every day is a different small issue, I'm glad that I work from home and that I have another car to move around (2019 BMW 430i Grand Coupe with M package).

I truly hope the X5 is fully operational soon after the changing the battery and visit to the mechanic tomorrow AM.

Thank you guys for your support. I will keep adding updates to this thread.
God bless you all,
Roberto in Phoenix.
P.S. Yes, I'm aware it's hot outside.
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  #15  
Old 06-16-2021, 06:06 PM
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Quote:
Originally Posted by Roberto G. View Post
Well, this AM I found out that the car is dead so I suspect the battery died overnight.
Last night AutoZone checked the battery and alternator, it passed both checks.

Today I will try to jump the battery. If the issue is the battery then I will replace it this evening so I can drive the car to the bmw mechanic in the AM.

I swear, I started to regret buying the X5.
Every day is a different small issue, I'm glad that I work from home and that I have another car to move around (2019 BMW 430i Grand Coupe with M package).

I truly hope the X5 is fully operational soon after the changing the battery and visit to the mechanic tomorrow AM.

Thank you guys for your support. I will keep adding updates to this thread.
God bless you all,
Roberto in Phoenix.
P.S. Yes, I'm aware it's hot outside.
Sounds like you have parasitic drain. Your X isn't "going to sleep" after 16 minutes like it's supposed to. Save yourself some money and pull the fuses for the telematic unit (blue tooth), the stereo, and the nav if you have it. After you charge the battery of course. The other item that causes parasitic drain is a bad FSR. If you pull those fuses and the battery doesn't die overnight you've narrowed it down. Plug one fuse in at a time and wait overnight to see if you lose the battery. The mechanic will do basically the same thing only he'll put an ammeter in the circuit to monitor draw when he pulls those fuses. You can troubleshoot it faster that way.

Also, depending on whether your X is 2004 or later, after teh battery is charged, lock up the car and check for the light by the shifter after 16 minutes. If it's still on, something isn't allowing the car to go to sleep and that's why your battery is draining. Good luck!
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  #16  
Old 06-16-2021, 06:48 PM
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I don't put much faith in "free' battery checks. When the battery light came on in the '01 3.0L I had a quick check done at a local autoparts store. Th lady told me there was a possible fault in my charging system. Went up the street and the assistant there printed out a long list of readings.
It was the alternator. I knew this because when I got home I put my VOM on the battery terminals and read the charging voltage or, in this case, lack thereof. I now keep a cheap digital cigarette lighter volt meter in both cars and a Foxwell. Had to upgrade that for the F15.
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  #17  
Old 06-16-2021, 08:11 PM
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Thanks guys. I'm reading and considering every lead and advise I read here. I still do not know how to reply to everyone individually. I appreciate your support.

The last couple of days I've been in my garage trying to find the root cause of some of the odd behavior my X5 is showing (random Engine Engine Failsafe prg error, and now the dead battery).
Keep in mind that it's 110 degrees outside so any small garage activity on a hot engine becomes a long tedious survival task.

First world problems I know. I will mess around with the battery tonight, will keep you guys posted.

Thanks,
Allan in warm and breezy Phoenix.
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  #18  
Old 06-16-2021, 08:58 PM
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Heat kills batteries. Plus you may not know how old it is. If a battery lasts longer than 3 years, you had a good one. A poor battery will cause all kinds of operational issues. It could explain the low power malfunction. I recently replaced my battery and alternator. The new alternator powers up everything nice and strong. Mine has an issue with going to sleep. I'm down to replacing the GM3 or repairing the consumer cut off relay on it.
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  #19  
Old 06-16-2021, 10:32 PM
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Angry

Hey man, good with luck with your X5.

Tonight I took the battery to AutoZone, the battery showed to be normal with 78% charge. They told me to recharge the battery.
I placed the battery back and the X5 is still dead when I put the key in:
No noise
No lights
No anything
I tried to jump start the battery but no luck.

Can the root cause be the solenoid?
Anyhow I'm pretty tired and frustrated. I cannot take the car to my mechanic tomorrow cause the car is dead so I have to call a mobile BMW mechanic.
Until tomorrow folks.
Roberto.
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  #20  
Old 06-17-2021, 08:03 AM
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Go one step at a time. Was the battery charged before installation? Do you have a digital voltmeter? Having a digital voltmeter provides information to solve problems. Going from memory, the battery terminals are facing forward in my X5. The positive is on driver side. Negative on passenger side. What is the voltage reading? Check the cable terminals. Do they look good. Are they tight? To boost an X5, use only the engine bay terminals. The positive is on the driver side firewall. It has a plastic over on it. The ground is on the driver side fender. It's brass looking. With the battery properly connected, what's the voltage in the engine bay terminals? I'm not yet familiar with all the relays and fuses. Other owners here can help on which ones to check.
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