Identifying an engine issue - EPC / Grumbly engine / cut out after idling (280)

Followers

17 February, 20242 yr

Hi all,

Hoping that you can help me identify an issue with my 2016 280. We've had two incidents recently that are a bit weird with the engine:

Engine went lumpy and threw up EPC code after very stop start heavy traffic when my wife was driving
Engine went lumpy then cut out (on another day) whilst stopped (after queuing for passport control)

Any ideas what this could be? Seems to be sporadic so far.

Car has done 60,000 miles and has had the spark plugs changed in the last year (and is serviced at an independent every year).

Thanks,

Chris

17 February, 20242 yr

I think as a starting point you would need to have the car scanned for fault codes. Presumably when you say "threw up an EPC code" you mean the light came on for a while, but is now off?

17 February, 20242 yr

^^^ What he said; a scan is the only way to get useful information on the issue/s.

17 February, 20242 yr

Author

Thanks, this is what VCDS said this evening, interestingly only a fault code for my wife's rough running was recorded:

15074 - Cylinder Disabling
P130A 00 [01100000] - -
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 98028 km
Date: 2024.02.09
Time: 17:33:53

Engine RPM: 2830.00 /min
Normed load value: 32.5 %
Vehicle speed: 19 km/h
Coolant temperature: 93 °C
Intake air temperature: 59 °C
Ambient air pressure: 980 mbar
Voltage terminal 30: 13.359 V
Unlearning counter according OBD: 27
Engine: operating status: PL
N_TOOTH: 2831 /min
T_AST_SAE: 4102 s
Engine oil temperature: 105.0 °C
STATE_LS_SAE[1]: OL_ERR
FUP_H_SAE: 8850.0 kPa
FUP_EFP_MES: 5022.81 hPa

15125 - Cylinder 1
P0301 00 [01100000] - Misfire Detected
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 98028 km
Date: 2024.02.09
Time: 17:33:42

Engine RPM: 835.00 /min
Normed load value: 22.0 %
Vehicle speed: 0 km/h
Coolant temperature: 89 °C
Intake air temperature: 69 °C
Ambient air pressure: 980 mbar
Voltage terminal 30: 13.359 V
Unlearning counter according OBD: 27
Engine: operating status: IS
N_TOOTH: 812 /min
T_AST_SAE: 4091 s
Engine oil temperature: 105.0 °C
STATE_LS_SAE[1]: CL
FUP_H_SAE: 6240.0 kPa
FUP_EFP_MES: 5030.77 hPa

15131 - Cylinder 3
P0303 00 [01100000] - Misfire Detected
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 98028 km
Date: 2024.02.09
Time: 17:33:14

Engine RPM: 1771.25 /min
Normed load value: 17.6 %
Vehicle speed: 27 km/h
Coolant temperature: 93 °C
Intake air temperature: 65 °C
Ambient air pressure: 980 mbar
Voltage terminal 30: 13.398 V
Unlearning counter according OBD: 27
Engine: operating status: PL
N_TOOTH: 1742 /min
T_AST_SAE: 4063 s
Engine oil temperature: 105.0 °C
STATE_LS_SAE[1]: CL
FUP_H_SAE: 6410.0 kPa
FUP_EFP_MES: 4853 hPa

15134 - Cylinder 4
P0304 00 [01100000] - Misfire Detected
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 98028 km
Date: 2024.02.09
Time: 17:33:14

15128 - Cylinder 2
P0302 00 [01100000] - Misfire Detected
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 98028 km
Date: 2024.02.09
Time: 17:33:42

16511 - Cylinder 1 Misfire Detected
P33AF 00 [01100101] - During Manifold Injection
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 98028 km
Date: 2024.02.09
Time: 17:34:32

Engine RPM: 762.25 /min
Normed load value: 15.7 %
Vehicle speed: 0 km/h
Coolant temperature: 87 °C
Intake air temperature: 67 °C
Ambient air pressure: 980 mbar
Voltage terminal 30: 13.378 V
Unlearning counter according OBD: 40
Engine: operating status: IS
N_TOOTH: 778 /min
T_AST_SAE: 4140 s
Engine oil temperature: 105.0 °C
STATE_LS_SAE[1]: CL
FUP_H_SAE: 2860.0 kPa
FUP_EFP_MES: 5006.89 hPa

16513 - Cylinder 3 Misfire Detected
P33B1 00 [01100101] - During Manifold Injection
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 98028 km
Date: 2024.02.09
Time: 17:34:32

16514 - Cylinder 3 Misfire Detected
P33B2 00 [01100101] - During Manifold Injection
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 98028 km
Date: 2024.02.09
Time: 17:34:32

16512 - Cylinder 2 Misfire Detected
P33B0 00 [01100101] - During Manifold Injection
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 1
Mileage: 98028 km
Date: 2024.02.09
Time: 17:34:32

15137 - Random/Multiple Cylinder Misfire Detected
P0300 00 [01100000] - -
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 2
Mileage: 98028 km
Date: 2024.02.09
Time: 17:33:14

17 February, 20242 yr

Author

The only engine DTC that doesn't clear is this, any ideas?:

15446 - Blocking Valve for Coolant (N82)
P1889 00 [00101111] - Open or Short to Ground
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 60
Mileage: 92458 km
Date: 2023.07.14
Time: 07:32:06

Engine RPM: 1059.50 /min
Normed load value: 19.6 %
Vehicle speed: 13 km/h
Coolant temperature: 102 °C
Intake air temperature: 28 °C
Ambient air pressure: 990 mbar
Voltage terminal 30: 13.359 V
Unlearning counter according OBD: 40
Engine: operating status: IS
STATE_LS_SAE[1]: CL
T_AST_SAE: 334 s
MAP_MES_SAE: 35 kPa
Lambda probe voltage: bank 1: probe 1 (broadband probe): 1.816 V
FAC_TPS_1_SAE: 14.453125 %
FUP_H_SAE: 12340.0 kPa

22 February, 20242 yr

Author

Took the car to my local garage this week, they've confirmed that it's the coolant valve for the engine rather than gearbox (apparently there are two), part will be replaced next week once it comes into stock. Hopefully it will fix the error code

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Identifying an engine issue - EPC / Grumbly engine / cut out after idling (280)

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