GTI Limp mode 4k rpm msg and far too hot (guage)

[ajmoir36]

So my sister called and said just while whe was parking up she got a message that said that the car exceeded 6000rpm and the temp guage went right up, EPC light and Orange triangle on dash. Coolant tank is good. I will be scanning the car later to find out. Ideas?

15 plate GTI (DSG) 220bhp

[fredgroves]

Hard to say it seems, but a quick google of similar errors on VAG vehicles suggests its basically one or more of the elements which control the combustion cycle having gone crazy. Could be a stuck inlet actuator or could be the fuel pump gone nuts.

Just be glad it didn't happen while it was in gear...

People seem to suggest its usually a transient problem, but does seem to reoccur after clearing down the errors.

Job for the mechanics I think.

[ajmoir36]

I dont think it actually revved just a message.

[fredgroves]

Seems strange that the temp gauge shot up as well as the rev warning though?

I can't imagine the two things could happen unrelated?

Are you sure she didn't actually just stick her foot on the pedal accidentally while in neutral then?

[ajmoir36]

Not yet, she is at work, will find out more when I scan it after 16:00 today. I am hoping its nothing bad and just a sensor I assume the water pump is not driven by the chain?

No it didnt rev wildly. She said it did a message and temp guage.

GTI High Temp by Alastair, on Flickr

[ajmoir36]

2 Faults Found:
17789 - Insufficient Engine Cooling / Coolant Flow
          P00B7 00 [039] - -
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 7
                    Mileage: 74183 km
                    Date: 2020.11.19
                    Time: 08:10:15

                    Engine speed: 848.25 /min
                    Normed load value: 5.9 %
                    Vehicle speed: 2 km/h
                    Coolant temperature: 103 °C
                    Intake air temperature: 16 °C
                    Ambient air pressure: 1020 mbar
                    Voltage terminal 30: 14.726 V
                    Unlearning counter according OBD: 40
                    Engine: operating status: IS
                    Engine temp. management actuator: raw value: 1990
                    Engine temperature management actuator: stop open: 142
                    Engine temperature management actuator: after-run stop: 3956
                    RVC_SP: 63.25 °
                    RVC_AV: 123.56 °
                    RVCPWM: 0.000 %

16986 - Insufficient Engine Cooling / Coolant Flow
          P00B7 00 [167] - -
          MIL ON - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 74183 km
                    Date: 2020.11.19
                    Time: 08:10:13

                    Engine speed: 789.25 /min
                    Normed load value: 5.5 %
                    Vehicle speed: 10 km/h
                    Coolant temperature: 103 °C
                    Intake air temperature: 15 °C
                    Ambient air pressure: 1020 mbar
                    Voltage terminal 30: 14.707 V
                    Unlearning counter according OBD: 40
                    Engine: operating status: IS
                    Engine temp. management actuator: raw value: 1988
                    Engine temperature management actuator: stop open: 142
                    Engine temperature management actuator: after-run stop: 3956
                    RVC_SP: 103.50 °
                    RVC_AV: 123.44 °
                    RVCPWM: 100.000 %

After I cleared it these came straight back:
2 Faults Found:

17789 - Insufficient Engine Cooling / Coolant Flow
          P00B7 00 [039] - -
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 2
                    Mileage: 74185 km
                    Date: 2020.11.19
                    Time: 17:16:09

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 16 °C
                    Intake air temperature: 18 °C
                    Ambient air pressure: 1030 mbar
                    Voltage terminal 30: 12.031 V
                    Unlearning counter according OBD: 40
                    Engine: operating status: ES
                    Engine temp. management actuator: raw value: 1988
                    Engine temperature management actuator: stop open: 142
                    Engine temperature management actuator: after-run stop: 3956
                    RVC_SP: 88.75 °
                    RVC_AV: 123.44 °
                    RVCPWM: 100.000 %

16986 - Insufficient Engine Cooling / Coolant Flow
          P00B7 00 [167] - -
          MIL ON - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 74185 km
                    Date: 2020.11.19
                    Time: 17:16:23

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 16 °C
                    Intake air temperature: 18 °C
                    Ambient air pressure: 1030 mbar
                    Voltage terminal 30: 12.050 V
                    Unlearning counter according OBD: 40
                    Engine: operating status: ES
                    Engine temp. management actuator: raw value: 1988
                    Engine temperature management actuator: stop open: 142
                    Engine temperature management actuator: after-run stop: 3956
                    RVC_SP: 103.50 °
                    RVC_AV: 123.44 °
                    RVCPWM: 100.000 %

Some other after I drove it home with the heater on full:


                Address 01: Engine  (5G0 906 259 C)

17:46:16
  IDE00025   Coolant temperature 76 °C
  IDE00102   Control Module temperature 43.0 °C
  IDE00187   Coolant temperature at engine start 15.7 °C
  IDE00192   Coolant temperature at radiator outlet: actual value 14.3 °C
  IDE00193   Coolant temperature at engine outlet: specified value 75.7 °C
  IDE00194   Coolant temperature at radiator output: specified value -48.0 °C
  IDE01266   Coolant shut-off valve Open
  IDE03582   Temperature sensor for engine temperature management 67.5 °C
  IDE04937   Sensor for engine block temperature: raw value -48.0 °C
  IDE06391   Oil temperature sensor 2 70.0 °C
  IDE06397   Temperature sensor for engine temp. management: target value 104.3 °C

[fredgroves]

That explains the temp gauge but not the rev warning?

[ajmoir36]

The rev warning is don’t drive it above 4000 like limp mode, I assume it’s water pump/ thermostat that needs replaced.

[fredgroves]

Ahhh OK, initially you thought it said rev limit exceeded.

The limp mode makes sense.

Water pump problems plague these it seems.

[ajmoir36]

Yeah figured so looks like it’s a fairly hefty bill if you need thermostat housing and water pump. £1k ish from VW