BMW runs bad after maintenance spark plugs

Dominick Technician New Jersey Posted   Latest  
Resolved
Driveability
2012 BMW X5 M 3.0L (N55B30A) 6-spd (6HP26 S) — 5UXZV4C59CL991966
Vehicle Runs Very Bad
Multi Misfires
Bogging No Throttle Respones

hi guys, first time posting so bare with me. i got a BMW drop in my lap after someone did a maintenance tune up. {plugs and coils}. this thing ran so bad. so I rechecked what was done, did not find anything out of placed. checked all connections and thing they could of knocked off or broke. nothing, smoked the engine, nothing. Here are all the codes 2ee2 2efe 2f02 2ee4 2ee0 2eff and it changes to different cylinder misfires. noticed low pressure pump at 101psi and high pressure pump at 1106psi both at idle. both seems kinda high to me at idle. needs some insight as to what to doat this point. Thank you Dom

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Manuel Diagnostician
New Jersey
Manuel
 

Make sure used proper bmw plugs

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Bill Owner/Technician
Michigan
Bill
 

Step 1 = Install OEM plugs and torque them to spec! Follow up with and let us know if you have issues after that please.

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Frank Manager
Tennessee
Frank
 

some bmws enjoy oil consumption when cold. You might have stepped right into it with a “maintenance tune up”

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Frank Service Manager
Nevada
Frank
 

As stated, factory parts (no aftermarket) Make sure ground wires are correctly installed, there are a few at the coils and valve cover

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Jim Owner/Technician
North Carolina
Jim
 

Check part number on new coils vs. old coils, have seen coils cataloged wrong, will run, but not well.

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Justin Technical Support Specialist
California
Justin
 

Bill and Frank have both hit the nail on the head here. These cars do not like bosch aftermarket plugs , and they hate any plug if its not torqued to spec with a torque wrench. Too tight causes internal damage to plug. 23nm replace with OEM spark plugs from BMW, torque 23nm and likely this will resolve your issue.

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Justin Mechanic
Tennessee
Justin
   

See if the ceramic is cracked anywhere on the spark plugs. The angle they sit in relation to the spark plug bore is a bit much and if the person didn’t use a flexible socket, they will crack when you tighten them down.

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Nate Owner
California
Nate
 

Did it have these symptoms when it arrived - or is this all new since the “tune-up”? Knowing the answer to this will help you decide where to go next.

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Dan Owner/Technician
Texas
Dan
 

… Nate … The work was done by Mr. Motorist …or OTHER… done elsewhere … Hate that . Dan H. … Hobbs

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Nate Owner
California
Nate
 

So, it may not be easy to sort out. My question really was - are the current drivability symptoms what the customer was originally trying to cure, or are these symptoms new with the new plugs and coils?

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Dan Owner/Technician
Texas
Dan
 

… I INTERROGATE potential customers like a stepchild during the original presentation , that is the time to get the info I need to proceed… Dan. … Hobbs

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Kirk Owner/Technician
California
Kirk
   

I feel more like a detective than a technician nowadays. It's mind boggling what stories could be discovered with a proper interrogation technics. What is more interesting here is that the car described in the title does not even exist.

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Fred Business Development Manager
California
Fred
 

Last question, Mr or Miss New Customer: May I see your recent YouTube and Google search history? Its right there on your phone.

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Funny
Dominick Technician
New Jersey
Dominick
 

No ran fine supposedly, thats my understanding. Yes definitely weird.

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Dan Owner/Technician
Texas
Dan
 

… Seems obvious (to me) that they F'ed it up some how… Dan H. … Hobbs

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Justin Mechanic
Tennessee
Justin
 

So have you removed the spark plugs yet to check them for damage and wether or not they’re genuine?

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Saifullah Diagnostician
Ontario
Saifullah
 

Check injectors. They love to leak

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Boruch Owner
Ohio
Boruch
 

Not sure if this applies to your engine. However, if it helps great, if not I wasted a few minutes posting this. On many newer BMw engines, the spark plug socket is a thin walled tapered socket. Snap on , matco, ast… make them the issue is when there is a rubber plug holder or similar they can crack the porcelain and it may not be very noticeable. A buddy of mine tuned me into this because he…

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Roddy Technician
Ontario
Roddy
 

Interested to know how this goes. I'm not sure about the translation in the scan tool, but 2 of those codes seem to be related to a cooling system problem (according to google) 2efe, 2eff. Perhaps it was overheating after the tune up?

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Alex Diagnostician
Australia
Alex
 

Would these be indexed plugs, I’m wondering?

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Dominick Technician
New Jersey
Dominick Resolution
 

Hi Guys, sorry I did not get back sooner. rough week. Ok followed everyone's suggestions, dealer parts ( plugs coils torque to spec) no avail. We agreed to send it to a euro specialized shop in town. Not the first time they have done this. ( before I got there.). The owner was told that an injector was unplugged and 2 coils and plugs were melted. Now come on, car is way to smart not to flag an…

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Manuel Diagnostician
New Jersey
Manuel
   

Probably reversed plugs for timing solenoid.

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Dominick Technician
New Jersey
Dominick
 

What do you mean by reverse plugs? Switching connectors? They are front of motor and hard to get too. Did take a peak

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Justin Mechanic
Tennessee
Justin
 

I had a vehicle once, also a BMW, that I replaced the spark plugs on. I didn’t blow out the holes of debris before I removed the spark plugs like you’re supposed to. Well, a piece of something fell down in one of the cylinders when I removed the spark plug. Of course I didn’t see it. Fired it up and it misfired, not only on the cylinder that had the object in it but on multiple cylinders as…

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Dominick Technician
New Jersey
Dominick
 

wow, that sounds like merit, i did notice that the person put anti seize on plug threads! I did blow out plug holes. I don't know, just crazy. thanks

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