Variable Valve Timing Oil Control Valve Flow Restricted Bank 1
2000-2003 BMW M5 E39 4.9L V8 S62
Description
The oil control valve that directs oil to the VVT phaser on Bank 1 has restricted flow, causing slow or incomplete cam phasing.
Symptoms
- Check Engine Light
- Delayed VVT response
- Cold start rattle lasting longer than normal
- Slight loss of power
- Idle quality gradually worsening
- Oil change does not resolve symptoms
Common Causes
- OCV screen clogged with debris
- OCV spool partially stuck
- Oil gallery partially blocked
- Varnish buildup in OCV
- Wear debris from timing chain
Diagnostic Steps
- Monitor VVT response time to commanded changes
- Remove and inspect OCV screen
- Test OCV flow rate off vehicle
- Check oil gallery for restrictions
- Ultrasonic clean OCV if applicable
Repair Notes
Replace oil control valve. Inspect OCV screen. If excessive debris is present, investigate source (timing chain wear, bearing wear).
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3035 on Other Vehicles
Common Questions
What does code P3035 mean on a 2000-2003 BMW M5 E39?
P3035 stands for "Variable Valve Timing Oil Control Valve Flow Restricted Bank 1". The oil control valve that directs oil to the VVT phaser on Bank 1 has restricted flow, causing slow or incomplete cam phasing.
What are the symptoms of P3035 on a BMW M5 E39?
Common symptoms of P3035 include: Check Engine Light, Delayed VVT response, Cold start rattle lasting longer than normal, Slight loss of power, Idle quality gradually worsening, Oil change does not resolve symptoms.
What causes P3035 on a 2000-2003 BMW M5 E39?
Common causes of P3035 include: OCV screen clogged with debris, OCV spool partially stuck, Oil gallery partially blocked, Varnish buildup in OCV, Wear debris from timing chain.