P0025

130708 - P0025

Information saved in
DME

Fault code
130708 - P0025

Fault text
VANOS, exhaust 2: control fault, position not reached

Fault description
The diagnostic function monitors control of the exhaust-side
VANOS on Bank 2. The deviation between specified and
actual data is monitored for the entire duration of the driving
cycle.

Condition for fault identification
Test condition:
The fault is recognized when the VANOS fails to trail the
specified value within the specified period.
Potential problem source(s):
- Extreme contamination on or seizure at VANOS solenoid
valve
- Stiction or defect in VANOS assembly
Terminal condition: none
Voltage condition:
- Electrical system voltage > 10 V
Temperature condition:
- Engine temperature between 0 °C and 110 °C
Time condition:
- None
Other conditions:
- Start process terminated, engine running

Condition for fault memory entry
This fault is logged in the control module's fault memory
immediately.

Action in service
1. Check VANOS solenoid valve for contamination, if
serious contamination is present remove filter screen with
tab
2. Install new solenoid valve (valve sticking)
3. Replace VANOS assembly
'Always proceed step-by-step - Check system after each step
(clear control module fault memory and test operation)'

Fault effect and breakdown warning
Breakdown notice:
- none
Possible apparent symptoms:
- In unfavorable case rough engine running

Driver information
Warning light:
- ECE emissions warning lamp: on
- US emissions warning lamp: on
- ECE electronic engine power reduction: on
- US electronic engine power reduction: on
- CC message: none

Service instruction
- none