X5 4.4 2005 - non-stop problems - Bimmerfest - BMW Forums

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X5 E53 (1999 - 2006)
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Old 02-11-2014, 10:04 AM
Irisha20 Irisha20 is offline
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Location: Michigan
Join Date: Feb 2014
Posts: 1
Mein Auto: X5 4.4
X5 4.4 2005 - non-stop problems

Hey everyone,

Had my X5 4.4 2005 for 4 years now. One problem after another.
First it was the shake on a cold start..still is, but manageable.
So I had misfires and had all the coils and plugs changed 2 years ago. Past few months, had all the coils changed again as well as a thermostat (the acceleration arrow would jump randomly), that fixed that.
Now a few days ago, as I was driving it wouldn't accelerate well even when stopped, and Check engine light would start flashing and it would shake as it would on a cold start.
A mechanic stopped by, and I had 3 misfires..
I just cannot find a good person to diagnose my car, if I go to the dealers, they will crank up the price way too high.. The mechanic said to change the coils and plugs again, which doesn't make any sense, because they were just changed.

You know when you have a cough, you automatically think its from a cold, (the obvious), but with this car same thing..i think there is a problem, that gives misfires and its not from bad coils or plugs, but something else...and no one seems to know what it is...
Oh and I had to change the door handle twice...damn thing, keeps breaking..

can anyone please give me some advice.. I would appreciate it!
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Old 02-17-2014, 03:41 AM
kaz_1979 kaz_1979 is offline
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Location: Romania
Join Date: Feb 2014
Posts: 1
Mein Auto: X5 E53 4.4i 2000
possible solution

I have had this problem for years (literally) ..
I have replaced many parts on the engine in order to fix the exact problem you had, including spark plugs, sensors, etc. Replaced parts worth 2000euro or more.

I didn't change the head gaskets.

Eventually it got fixed :

When I had a crash, the mechanic who fixed my car took the engine out. He found out that a pipe (made of aluminium,possibly L-shaped..) had one side broken (possibly the side entering Vanos area, as far as I remember) and that caused the problemes( engine check light , engine shake etc)

I don't know the name of the part unfortunately.
However, you can ask a good mechanic to inspect the engine and see if this "pipe" is broken. Replacing the part (around 100euro maximum) fixed the problem immediately.
I don't know if you can see it or not without removing the engine.

I'm not a native english speaker and I cannot help you out with the specific name of the part.

good luck.

Last edited by kaz_1979; 02-17-2014 at 03:42 AM.
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Old 02-21-2014, 04:46 AM
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BeemerGuy BeemerGuy is offline
former motorcycle rider
Location: Raleigh area, NC, USA, Earth
Join Date: Jan 2007
Posts: 465
Mein Auto: F06
I'm not going to suggest that you go to the dealer, but I do suggest that you find a good BMW specialist shop in your area, and pay the money to have the car properly diagnosed and repaired. The mechanic that you are using - it appears - is not familiar with BMWs and is replacing the same parts over and over again to no avail. There are common problems with our cars as they get older, and someone who sees these things all the time is much more likely to diagnose it correctly the first time.
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Old 03-08-2014, 06:46 AM
Rahulk Rahulk is offline
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Location: Orlando ,Fl
Join Date: Jan 2013
Posts: 191
Mein Auto: E53 N62; E90 N52
You have the dreaded lever issue... The intake cam shaft lever arms for that model year are bad.

Sent from BimmerApp mobile app
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Old 03-08-2014, 09:22 AM
Terry7606 Terry7606 is offline
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Location: Illinois
Join Date: Feb 2014
Posts: 6
Mein Auto: 2003 BMW X5 4.6is
Any engine that runs poorly (misfires) results in a common flaw. Back to basics... What does an engine need to run properly? Spark, mixture, compression, etc... I specialize in BMW's and the most common problem I typically find in misfires is a vacuum related issue. The newer 4.4's use whats called a vacuum pump driven off a camshaft. Because this engine is redesigned, the intake manifold does not produce enough vacuum to operate the various vacuum assisted servos and brake functions.
I suggest carefully inspecting ANY leak. Believe it or not, even a leaky valve cover gasket can cause a misfire. The Crank Case Ventilation System also utilizes pressure to operate correctly. There are even cases Ive seen where oil leaks from the vacuum pump creating uncertain vacuum to that 7mm line. Its a $5.00 gasket and an easy DIY.

Get yourself a good flashlight and a small mirror. It will tell you all sorts of things.
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