2002 4.6is feel like rear ended when stoping

[X52002]

Good to know....

[rares]

no error codes ...everything fine .......but for just sec when u relese the gas pedal ...there was no enough air at the idle for the engine to breathe but throtle control valve adjust itself right away and the computer doesnt take the "faulty".Trust me on this one ....clean inside the throtle control unit.The "rear end " feeling when stoping.... cost me the transfer case and the front drive shaft

[BlackX54.4i]

My '05 4.4i does that as well when coming to a stop. Took it to my a dealer twice now and they adjusted the idle speed which helped some, but hasn't completely erased the problem.

So transfer case and front drive shaft?

Looks like I'll be printing this thread off and taking it in

[cimbro]

Originally Posted by tomcat

Well, here is an '03 with it. I suppose first order of business would be to reset the transmission memory then drive gingerly. Instructions here.

Scott

In another post, I saw the instruction for it disconnecting the battery and so resetting the memory for at least 12 hours.

I will try both the solution, than I will let you know.

I have the same problems!! on 01. 4.4

Bye

[sunny5280]

Originally Posted by BlackX54.4i

My '05 4.4i does that as well when coming to a stop. Took it to my a dealer twice now and they adjusted the idle speed which helped some, but hasn't completely erased the problem.

So transfer case and front drive shaft?

Looks like I'll be printing this thread off and taking it in

From what I've read of the problem it sounds like an issue I had with my 2000 4.4i. It ended up being the transmission valve body. Once replaced the issue went away. Cost of the part from BMW is $1,800. My mechanic got it directly from the manufacturer for $550.

[cimbro]

Originally Posted by sunny5280

From what I've read of the problem it sounds like an issue I had with my 2000 4.4i. It ended up being the transmission valve body. Once replaced the issue went away. Cost of the part from BMW is $1,800. My mechanic got it directly from the manufacturer for $550.

What is exactly this "valve body" ? Is it in the torque convertor?

[sunny5280]

Originally Posted by cimbro

What is exactly this "valve body" ? Is it in the torque convertor?

No, it's not in the torque convertor. The BMW part number is 24347521639. You can see it at:

RealOEM.com BMW E53 X5 4.4i A5S440Z CONTROL VALVE ASSY

[zeroboot]

Originally Posted by zimdude

I had the same thing with my 05 4.4i

1. Car shifting strangely when I am coming to a stop (see #3 & #4)
2. Experiencing a "kick" when going uphill or accelerating off sleeping policemen, or accelerating from a stop street not from a complete stop (engine revs up a little with no motion proceeded by a 'bang" and a very harsh jerk and then motion.)
3. Car lurches forward from 2nd *to 1st and then again from 5th to 6th gear
4. Its as if the transmission is free wheeling before it finds a gear
5. Occasionally there is a low rumbling/vibrating/humming noise when at full acceleration experienced when overtaking on the freeway, 65 mph onwards when getting close to the redline.
6. When in slow moving traffic (25/35mph / 1,500 rpm / 40mpg) the transmission jerks approx every 15 seconds. Its feels like the brakes are being stabbed intermittently. None of the needles indicate any change whatsoever when this happens.

I took it into my dealership and they replaced the gearbox (remanufactured) free of charge. BMW North Scottsdale is AZ are the absolute best to deal with. I was just out of warranty and they had replaced he transfer case a couple of months prior so there was a sequence of event leading up the the gearbox replacement. They had tried everything including software updates before finally replacing.

I had done a tonne of research and I believe the 05 in particular suffered from this. Changing the gearbox erradicated all my problems

Is the gearbox covered under CPO? I have an '05 4.4 with the same problem and thinking I should bring it in.

[Ahmed303]

Originally Posted by zeroboot

Is the gearbox covered under CPO? I have an '05 4.4 with the same problem and thinking I should bring it in.

Should be. Part of the Powertrain. Check your CPO Contract.

[zigzag]

Who"s manufacturer? And how we can get it directly? Can you ask your mechanic?