Subject: Re: m3 e46 -02 fault code p0014 Need help!!! Author: rajaieq as Rajaie (moderator) : 1008 posts Posted on: 2010-06-09 00:32:48

The common vanos failure on the S45 engine (E46 M3) is the vanos solenoid pack. This usually causes a vanos intake code but it could also cause a vanos exhaust code, like P0014.

Here is some info on the S54 vanos related problems. Let me know what you find.

The vanos can fail and cause the DME to generate fault codes. The codes are usually for the intake side. They include:
Fault 0x43 (67) DME: Inlet vanos, advance valve
Fault 0x48 (72) DME: Inlet vanos, retard valve
Fault 0xB8 (184) DME: Function, inlet vanos

There are two common failures that can cause the vanos codes. The vanos solenoid pack can fail and the exhaust sprocket vanos oil pump driver teeth can break.

Vanos solenoid pack is #2 in this parts diagram.

Exhaust sprocket vanos oil pump driver teeth are part of #2 in this parts diagram. The driver teeth can be seen on the exhaust sprocket outer component.

Here is a method to distinguish between the two failures. Reset the codes and start the engine. Let the car idle for 3 minutes. If the codes reappear while the car is idling the problem is likely the exhaust sprocket driver teeth are broken. If the car has to be driven for a period before the problem recurs and the fault codes reappear then the problem is the vanos solenoid pack.

The solenoid pack failure is in most cases intermittent and the car has to be driven for some period, sometimes hundreds of miles, before the problem reappears. But there are some cases where the failure is permanent and the codes appear immediately after starting the car.

In the case where the problem and codes reappear just after starting the car the valve cover needs to be removed to acquire and definitive diagnosis. If the exhaust sprocket driver teeth are broken then that is the fault. If the teeth are still present then the solenoid pack is the fault.

Although the BMW ETK (parts catalog) shows the vanos solenoid pack is discontinued, it is available under a new part number, 11-36-7-839-180, $600-$700.

Replacing the vanos solenoid pack is simple. 2 short and 3 long bolts at the top of the vanos mount the solenoid pack onto the vanos. For access, the fan shroud exhaust side air scoop needs to be removed (2 rivets). There is a sealing plate with O-rings that seals the solenoid pack and vanos connection. The OEM O-rings on the sealing plate are made from Buna and thus fail. Therefore the sealing plate needs to be replaced when replacing the solenoid pack. The sealing plate is #7 on the vanos parts diagram referenced above. The mounting bolts should be tightened evenly to 5 Nm.

If you replace your vanos solenoid pack please send your old unit to Beisan Systems. We are investigating rebuilding the solenoid pack and providing it as a more economic solution.

If the exhaust sprocket teeth are broken then the sprocket component with the driving teeth needs to be replaced. Unfortunately this component is not available separately from BMW and needs to be purchase as a set with the rest of the exhaust sprocket components, #2 on the sprockets parts diagram referenced above.

The timing is disturbed in the installation process and special tools are needed to reset the timing.

A rattle occurs that emanates from the valve cover front. The rattle is due to loose sprocket bolts. This usually occurs on the intake sprocket but can apparently also occur on the exhaust sprocket. The sprocket bolts that come loose are #5 on this parts diagram.

The #5 bolts are mounted underneath the outer sprocket component, so they can’t be seen when the valve cover is remove. The outer sprocket will be found to have some movement.
The bolt threads will be damaged and need to be replaced.
The timing is disturbed in the repair process and special tools are needed to reset the timing.

Here is a forum post thread with pictures of the loose and damaged bolts.
http://pistonheads.co.uk/xforums/topic.asp?h=0&t=570171&r=8910474&hm=83097

Rajaie
528i 5sp 06/00

• m3 e46 -02 fault code p0014 Need help!!! - jarmosan 2010-06-08 22:12:19 (849 views)
  • Re: m3 e46 -02 fault code p0014 Need help!!! (url) - Rajaie 2010-06-09 00:32:48 (1377 views)
    • Re: m3 e46 -02 fault code p0014 Need help!!! - everget 2011-02-04 05:03:10 (1480 views)