Mini Cooper Parts Catalog Mini Cooper Accessories Catalog Mini Cooper Technical Articles Mini Cooper Tech Forums
 
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
 >  >
Cooper Valvetronic Faults
 
Bookmark and Share

Pelican Technical Article:

Cooper Valvetronic Faults

Nick Czerula

Time:

1 hour1 hr

Tab:

$500

Talent:

**

Tools:

Scan tool

Applicable Models:

R52 MINI Cooper Convertible (2007-08)
R52 MINI Cooper S Convertible (2007-08)
R56 MINI Cooper Hatchback (2007-11)
R56 MINI Cooper S Hatchback (2007-11)
R57 MINI Cooper Convertible (2009-11)
R57 MINI Cooper S Convertible (2009-11)

Parts Required:

Valvetronic motor and seal

Hot Tip:

Work with a cool engine. Clear engine fault codes when done

Performance Gain:

Car will run well

Complementary Modification:

Replace engine air filter, inspect intake air ducts for cracks

MINI R56 model designations, 2007 - 2012:

R55 Clubman S

R56 Cooper S

R57 Cooper S Convertible

R58 Cooper S Coupe

R59 Cooper S Roadster

R60 Cooper S Countryman

Beginning with the production of the 2007 MINI R56, several of the models have been equipped with the Valvetronic intake system. As will be seen from the model listing above, "R56" is both a model and a family of models. Different MINI body configurations were given different R codes.

Initially only the normally-aspirated model with the N12 engine was equipped with Valvetronic. Beginning with 2011 models, both the N16 (normally-aspirated) and N18 (turbocharged) engine came with Valvetronic.

Valvetronic, or variable intake valve lift, is an intake system developed by BMW in order to increase engine efficiency and power and reduce CO2 emissions. The system uses a secondary eccentric shaft with cams. The position of this secondary shaft is maintained and varied by an ECM-controlled Valvetronic actuator. The intake camshaft operates a series of intermediate levers. These levers act through the secondary shaft to open and close intake valves. Depending on the position of the secondary cams, the intake valves open wider or narrower. Based on driver input, engine load and other variables, the ECM determines when and how far to open the intake valves.

This system eliminates the need for throttle housing and flap.

Faults

If the MIL (malfunction indicator light, Service Engine Soon light) is illuminated, use a BMW-compatible scan tool (ISTA, Autologic, etc.) to read fault codes stored in ECM memory. The following codes point toward Valvetronic problems:

2DCE "Not possible to adjust Valvetronic system and the environment related condition"

58A2 "Actual value of VVT eccentric angle is above 174 degrees"

2DCF "No movement detected in Valvetronic system"

Here are the steps recommended by the BMW Service Bulletin No. M12 07 12 [SI], June 2012:

If fault codes 2DCE and 58A2 are displayed, reprogram the vehicle using ISTA/P 2.30 or higher (integration level 1203500 or higher). Disregard fault code 2DCF at this time, and do not perform any further repairs related to this fault before programming.

If fault code 58A2 is not displayed, the procedure is still the same.

If the scan tool displays low battery voltage, connect the vehicle power supply (electronic charger). Note the displayed battery voltage reading in the repair order comments section.

Start the vehicle and allow the engine to idle for 1 minute. Then switch the engine off.

Using the scan tool, download fault codes.

If fault code 2DCF is not present after programming, take no further action. If code 2DCF is stored after the programming is complete, then the eccentric shaft (Valvetronic) actuator motor is at one of the end stop positions. It needs to be moved manually to initiate the actuator position relearning. Proceed to step 5.

Switch off the ignition.

Using a 4 mm Allen key, rotate the eccentric shaft actuator motor three turns. The actuator motor is installed at the top of the valve cover. Do not remove or replace the actuator motor.

After rotating the actuator shaft, reassemble the vehicle, switch on the ignition and start the engine. The Valvetronic position learning procedure starts automatically.

Turn off the engine and clear the fault memory.

Other common faults relate to an electric motor failure. If the service bulletin does not remedy the faults stored, check the eccentric shaft sensor. If full of oil, replace the sensor. If not, check operation using a MINI scan tool. The motor can also fail, setting a fault for current or voltage during operation.

Beginning with the production of 2007 MINI R56, several of the models have been equipped with Valvetronic intake system.
Figure 1

Beginning with the production of 2007 MINI R56, several of the models have been equipped with Valvetronic intake system. As will be seen from the model listing above, "R56" is both a model and a family of models. Different MINI body configurations were given different R codes. Initially only the normally-aspirated model with N12 engine was equipped with Valvetronic. Beginning with 2011 models, both the N16 (normally-aspirated) and N18 (turbocharged) engine came with Valvetronic. The engine shown is an N12 normally-aspirated engine. The Valvetronic motor (red arrow) is located at the left rear of the cylinder head, below the intake manifold.

Bookmark and Share
Comments and Suggestions:
Dennis M. Comments: Nick,

Have a 2010 Mini Cooper issuing 2856 and 285A fault codes on a scanner and they are showing descriptions "Valvetronic eccentric shaft sensor guide" and "Valvetronic eccentric shaft sensor reference" respectively. Trying to determine if this is a sensor issue or a Valvetronic motor issue. Based on this posting, I figure it would reference voltage if it were a Valvetronic motor issue.

Thanks,

Dennis M.
July 18, 2016
  Followup from the Pelican Staff: Best bet is to use an advanced MINI scan tool to monitor eccentric shaft position. With that data, you can see if the shaft is moving and the signal is being lost, reverting to a default reading. The sensors are more common. - Nick at Pelican Parts  
Pilgrim Comments: I read the 2DCE code on my daughter's 2011 R56 with N18 engine, but did not find any of the other codes mentioned here. I did find 2F76 and 2F7C codes.

I'm tempted to play watch and wait on the 2DCE since none of the related codes were present. The other codes deal with "super knocking" which I am still researching.

Any advice?
April 29, 2016
  Followup from the Pelican Staff: I would see if you have the latest DME software for the 2DCE. Superknock is a high knock count. The engine mixture is detonating. - Nick at Pelican Parts  
jonny Comments: What is meant by 'reprogram the vehicle using ISTA/P 2.30 or higher'? Does this mean relearn the limit stops or to update the module software?
Thanks I have MCS n18 engine
April 5, 2016
  Followup from the Pelican Staff: That means update the DME software with that version or ISTA or higher. - Nick at Pelican Parts  

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Fri 12/9/2016 02:56:44 AM