Cruise Control Malfunction BMW

a 'cruise control malfunction' code that constantly comes on and off randomly. When the code comes on the only noticeable thing that occurs is that the steering wheel buttons don't work after the error is on, but...

Once it goes away randomly ether in couple seconds or a min time span, the steering wheel buttons operate and everything is normal again.
The first time it happen i try the cruise control 30 seconds after and it was working fine.
It's your switch steering column. I had the same issue but it's not random it can be reproduced under certain angle of your steering wheel. Dealer fixed the issue by replacing this http://www.realoem.com/bmw/enUS/show...diagId=61_2982
The dealer told me it had shorted out. I think it's just a faulty part.
I just started seeing this after swapping steering wheels. It pops up, goes away, and everything works as normal.

I'll put the other wheel back on to see if it is related to something in the wheel.
I'm having the same issue on my 2014 328i. Whenever I turn the wheel, the code goes away and the buttons on the wheel work again. The malfunction happens randomly and usually at slower speeds.
I had cruise control intermittent failures and button lights go off. Replaced the wiring harness and everything is fine. This seems to have been a problem since the e-series.
Wire harness within the steering wheel which connects the various components such as the left right sets of buttons aside of the horn.

About 10 minutes after repeatedly trying to get it to work an Error popped up on the iDrive screen saying Cruise Control Malfunction.

Do you have a 6MT?

I have had something similar happen to my cruise. A simple depression of the clutch followed by a shift to neutral then back into gear mended the problem.
Your brake (light) switch is broken. This is the switch that detects pedal pressure on the brake. If it isn't working, cruise will be screwed up, and given your description of the "restart" every time you push the button, it's probably stuck closed, so the car thinks you are stepping on the brake pedal.

I had one stick open on my old M3, and when THAT happens, when you step on the brake in cruise mode, the cruise control doesn't know it, and tries to speed the car up to compensate for the braking slowdown! Takes you by surprise for a few seconds, too -- step on the brake and the dang car speeds up!

First things first, check to make sure the brake lights come on when you tap the brake pedal. Try numerous times.
Cruise control systems rely on a functioning brake pedal switch. If the signal is "implausible", then the cruise control system has no way to tell it when to deactivate.
If you have a way to interrogate the vehicle's various computers for DTCs, that would be the best way to go forward.

the problem is solved .today i have fitted the original tires size and everything was O.K. the cruise control works again correct.
I repeatedly get this warning, sometimes 13 times in a 20 mile trip, sometimes once a week. The fault stops the steering wheel functions, however clears itself and everything then works perfectly.

The only thread I've found was someone suggesting a part was damaged on fitting a new steering wheel. I do not know if mine has been replaced, but it is the option that was selected at new.

solved it by buying a used cruise control actuator. The actuator is located in front of the power steering reservoir. I'd recommend opening it up and looking to see if any of the teeth on the plastic gear are broken. If so, that's what's causing the failure.
your looking for wheel sensors, break light switches, anything that works in tandem with the cruise control system,

so just from logic you can start to put a list of things that might interfere with the cruise system, The button on the wheel, the brake light switch turning it off the motor that holes the throttle body open, The cabling to said motor,

My issue was the actuator, which has since broken again. Depending on which teeth are broken on the plastic gear relative to the turning gear (which is activated when you turn on cruise control) you may be able to position a piece of rubber stopper as shown in the DIY. The broken teeth on my actuator gear are too far from the initial starting point when I activate cruise control to use the rubber stopper technique. I'd recommend you open up your actuator and check to see if there are any teeth broken off the large gray gear. I'll need to buy a whole new actuator to fix my cruise control.

I found all the plug pins on the cruise control actuator pcb were dry or pulled through , therefore no contact to coil or servo motor, no response from the cruise control equaled the dash light going off and not being able to turn on again until the next restart of the car. Once the joints were resoldered cruise control was working again.

My Cruise Control does not work until engine reaches a good temperature, takes about 10 min or so to get there sometimes, whatever the temperature the controller wants it to reach. And then can work for hours.