A couple of days back the engine light came on. The car had a slight hesitation and jerked momentarily at low speed, but otherwise seemed fine. The following day I took it out and the engine light was on, and a few minutes later the glow plug light started flashing continuously. I drove it around for around 10 mins during which time it lost power. The throttle was very unresponsive, I don’t think it got over 40mph, and did nothing when I floored the throttle, just coasted.
I read various threads about similar issues but the cause could be down to a number of things (bizarrely, even a blown brake light bulb, when changed solved the problem)!
I stopped and switched off for a while. When I restarted both lights had gone and the car felt normal.
This afternoon I noticed the jerk again but no lights. Came back and plugged in VCDS. The following faults came up:
4807 - EGR System
P0401 00 [096] - Insufficient Flow
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 2
Mileage: 133148 km
Date: 2022.03.17
Time: 10:54:10
Engine speed: 1211.00 /min
Normed load value: 23.1 %
Vehicle speed: 19 km/h
Coolant temperature: 88 °C
Intake air temperature: 22 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 12.320 V
Unlearning counter according OBD: 40
Mean injection quantity: 6.24 mg/stroke
Control Module temperature: 34.6 °C
EGR_governor_deviation: -170.2 mg/stroke
Inj Ctl q Curr: 6.24 mg/stroke
Standardised airflow ratio: 1.2655
Air mass at air mass meter 1: 104.7 kg/h
Actual charge pressure: 1157 hPa
4794 - Mass Air Flow Sensor (G70)
P0101 00 [096] - Implausible Signal
Intermittent - Not Confirmed - Tested Since Memory Clear
9120 - EGR Sensor 1
P046C 00 [104] - Implausible Signal
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 3
Mileage: 133100 km
Date: 2022.03.17
Time: 10:23:12
Engine speed: 1658.00 /min
Normed load value: 46.3 %
Vehicle speed: 103 km/h
Coolant temperature: 89 °C
Intake air temperature: 13 °C
Ambient air pressure: 1020 mbar
Voltage terminal 30: 12.620 V
Unlearning counter according OBD: 40
Air mass: actual value (mg/stroke): 690.5 mg/stroke
EGR Vacuum Regulator Solen.val.: activation: 100.00 %
EGR Solen.val.: actual value: 96.28 %
EGR valve: offset closed: -5.93 %
High press EGR actuator: actual unconditioned volt val: 1128.8 mV
EGR valve: offset open: 5.93 %
4891 - EGR Valve (N18)
P0403 00 [096] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 133317 km
Date: 2022.03.17
Time: 19:12:24
Engine speed: 1466.00 /min
Normed load value: 0.0 %
Vehicle speed: 77 km/h
Coolant temperature: 77 °C
Intake air temperature: 23 °C
Ambient air pressure: 1020 mbar
Voltage terminal 30: 14.120 V
Unlearning counter according OBD: 40
Air mass: actual value (mg/stroke): 178.4 mg/stroke
EGR Vacuum Regulator Solen.val.: activation: 100.00 %
EGR Solen.val.: actual value: 92.77 %
EGR valve: offset closed: -0.27 %
High press EGR actuator: actual unconditioned volt val: 1040.8 mV
EGR valve: offset open: 0.27 %
4892 - EGR Valve (N18)
P0403 00 [096] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 133317 km
Date: 2022.03.17
Time: 19:12:24
Engine speed: 1467.50 /min
Normed load value: 0.0 %
Vehicle speed: 77 km/h
Coolant temperature: 77 °C
Intake air temperature: 23 °C
Ambient air pressure: 1020 mbar
Voltage terminal 30: 14.000 V
Unlearning counter according OBD: 40
Air mass: actual value (mg/stroke): 157.8 mg/stroke
EGR Vacuum Regulator Solen.val.: activation: 0.00 %
EGR Solen.val.: actual value: 17.02 %
EGR valve: offset closed: -0.27 %
High press EGR actuator: actual unconditioned volt val: 3636.2 mV
EGR valve: offset open: 0.27 %
Readiness: 0 1 0 0 0
Can someone help to determine what the issues are at play? Is it categorically a new EGR valve? Is the MAF also an issue? And glowplugs?
Much appreciated.
I read various threads about similar issues but the cause could be down to a number of things (bizarrely, even a blown brake light bulb, when changed solved the problem)!
I stopped and switched off for a while. When I restarted both lights had gone and the car felt normal.
This afternoon I noticed the jerk again but no lights. Came back and plugged in VCDS. The following faults came up:
4807 - EGR System
P0401 00 [096] - Insufficient Flow
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 2
Mileage: 133148 km
Date: 2022.03.17
Time: 10:54:10
Engine speed: 1211.00 /min
Normed load value: 23.1 %
Vehicle speed: 19 km/h
Coolant temperature: 88 °C
Intake air temperature: 22 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 12.320 V
Unlearning counter according OBD: 40
Mean injection quantity: 6.24 mg/stroke
Control Module temperature: 34.6 °C
EGR_governor_deviation: -170.2 mg/stroke
Inj Ctl q Curr: 6.24 mg/stroke
Standardised airflow ratio: 1.2655
Air mass at air mass meter 1: 104.7 kg/h
Actual charge pressure: 1157 hPa
4794 - Mass Air Flow Sensor (G70)
P0101 00 [096] - Implausible Signal
Intermittent - Not Confirmed - Tested Since Memory Clear
9120 - EGR Sensor 1
P046C 00 [104] - Implausible Signal
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 3
Mileage: 133100 km
Date: 2022.03.17
Time: 10:23:12
Engine speed: 1658.00 /min
Normed load value: 46.3 %
Vehicle speed: 103 km/h
Coolant temperature: 89 °C
Intake air temperature: 13 °C
Ambient air pressure: 1020 mbar
Voltage terminal 30: 12.620 V
Unlearning counter according OBD: 40
Air mass: actual value (mg/stroke): 690.5 mg/stroke
EGR Vacuum Regulator Solen.val.: activation: 100.00 %
EGR Solen.val.: actual value: 96.28 %
EGR valve: offset closed: -5.93 %
High press EGR actuator: actual unconditioned volt val: 1128.8 mV
EGR valve: offset open: 5.93 %
4891 - EGR Valve (N18)
P0403 00 [096] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 133317 km
Date: 2022.03.17
Time: 19:12:24
Engine speed: 1466.00 /min
Normed load value: 0.0 %
Vehicle speed: 77 km/h
Coolant temperature: 77 °C
Intake air temperature: 23 °C
Ambient air pressure: 1020 mbar
Voltage terminal 30: 14.120 V
Unlearning counter according OBD: 40
Air mass: actual value (mg/stroke): 178.4 mg/stroke
EGR Vacuum Regulator Solen.val.: activation: 100.00 %
EGR Solen.val.: actual value: 92.77 %
EGR valve: offset closed: -0.27 %
High press EGR actuator: actual unconditioned volt val: 1040.8 mV
EGR valve: offset open: 0.27 %
4892 - EGR Valve (N18)
P0403 00 [096] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 133317 km
Date: 2022.03.17
Time: 19:12:24
Engine speed: 1467.50 /min
Normed load value: 0.0 %
Vehicle speed: 77 km/h
Coolant temperature: 77 °C
Intake air temperature: 23 °C
Ambient air pressure: 1020 mbar
Voltage terminal 30: 14.000 V
Unlearning counter according OBD: 40
Air mass: actual value (mg/stroke): 157.8 mg/stroke
EGR Vacuum Regulator Solen.val.: activation: 0.00 %
EGR Solen.val.: actual value: 17.02 %
EGR valve: offset closed: -0.27 %
High press EGR actuator: actual unconditioned volt val: 3636.2 mV
EGR valve: offset open: 0.27 %
Readiness: 0 1 0 0 0
Can someone help to determine what the issues are at play? Is it categorically a new EGR valve? Is the MAF also an issue? And glowplugs?
Much appreciated.
