Hi all,
I have read the various other posts relating to this fault code. I have it on my 2012 2.0 TDI Q3. The fault has been present for a few thousand miles now. Every now and again it goes off itself, and if I turn the MIL off, it can stay off for 50 miles, then come back on. I have used EGR cleaner, but I don't know whether this helps or not.
At the weekend I decided to use my Rosstech VCDS to try and troubleshoot it further, however unfortunately the results data doesn't mean much to me, nor the measuring blocks options. Does anyone have any advise on what to check to ensure it is the EGR valve before I dig deep ££ and get it replaced? (or rather try and find a garage willing to replace it... my usual garage are not returning my calls)
Please see VCDS output below, the fault frequency has increased since this output, probably a count of 80 now.
Many thanks Kev.
4807 - EGR System
P0401 00 [237] - Insufficient Flow
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 5
Mileage: 133928 km
Date: 2019.02.05
Time: 15:06:36
Engine speed: 1862.00 /min
Normed load value: 45.9 %
Vehicle speed: 107 km/h
Coolant temperature: 70 °C
Intake air temperature: 12 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 14.900 V
Unlearning counter according OBD: 40
Air mass: specified value: 352.1 mg/stroke
Air mass: actual value (mg/stroke): 468.8 mg/stroke
EGR Solen.val.: actual value: 15.95 %
Throttle valve adapter: actual value: 31.80 %
Charge air pressure specified value: 1269 hPa
Charge air pressure: actual value: 1339 hPa
Mean injection quantity: 16.98 mg/stroke
I have read the various other posts relating to this fault code. I have it on my 2012 2.0 TDI Q3. The fault has been present for a few thousand miles now. Every now and again it goes off itself, and if I turn the MIL off, it can stay off for 50 miles, then come back on. I have used EGR cleaner, but I don't know whether this helps or not.
At the weekend I decided to use my Rosstech VCDS to try and troubleshoot it further, however unfortunately the results data doesn't mean much to me, nor the measuring blocks options. Does anyone have any advise on what to check to ensure it is the EGR valve before I dig deep ££ and get it replaced? (or rather try and find a garage willing to replace it... my usual garage are not returning my calls)
Please see VCDS output below, the fault frequency has increased since this output, probably a count of 80 now.
Many thanks Kev.
4807 - EGR System
P0401 00 [237] - Insufficient Flow
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 5
Mileage: 133928 km
Date: 2019.02.05
Time: 15:06:36
Engine speed: 1862.00 /min
Normed load value: 45.9 %
Vehicle speed: 107 km/h
Coolant temperature: 70 °C
Intake air temperature: 12 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 14.900 V
Unlearning counter according OBD: 40
Air mass: specified value: 352.1 mg/stroke
Air mass: actual value (mg/stroke): 468.8 mg/stroke
EGR Solen.val.: actual value: 15.95 %
Throttle valve adapter: actual value: 31.80 %
Charge air pressure specified value: 1269 hPa
Charge air pressure: actual value: 1339 hPa
Mean injection quantity: 16.98 mg/stroke
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