I have a MK7 GTI PP 2013, I had a 30 mile trip recently and noticed the check engine light pop up and the temperature gauge was at 125 (Celsius) degrees. I immediately parked it up and there was no signs of overheating, restarted the car after some time and it went up to around 90 as it should then when my start-stop tried to kick in there was a start-stop error and it made the temperature gauge go all the way down to the bottom 0/50. I tapped the "More info" button on the vehicle status part on the screen and it just said "Error: Start-stop" with no additional information.
Since I've bought it back home I checked for faults and got two P00B7 error codes (Insufficient Engine Cooling / Coolant Flow) initially, 16464 & 15470 with another error code P2681. I thought it must have something to do with the coolant sensor since it was going up and down abnormally. E.g. would rise to 75 degrees, drop down to 60 whilst the engine is running, then it would rise back up and continue to do the same thing in increments depending on how long the engine is running. So the coolant sensors been changed and the P2681 error didn't show up anymore but the two P00B7 errors still persist with the engine light still on. Anyone got any advice, I am wondering if there is more than one temperature sensor that may affect the gauge? I'm hoping it's not a thermostat or water pump issue as it is outside of the warranty now and there's no apparent leaks or a/c problems, runs smoothly as it was. The only thing that's different is the coolant temperature gauge rising and dropping.
Since I've bought it back home I checked for faults and got two P00B7 error codes (Insufficient Engine Cooling / Coolant Flow) initially, 16464 & 15470 with another error code P2681. I thought it must have something to do with the coolant sensor since it was going up and down abnormally. E.g. would rise to 75 degrees, drop down to 60 whilst the engine is running, then it would rise back up and continue to do the same thing in increments depending on how long the engine is running. So the coolant sensors been changed and the P2681 error didn't show up anymore but the two P00B7 errors still persist with the engine light still on. Anyone got any advice, I am wondering if there is more than one temperature sensor that may affect the gauge? I'm hoping it's not a thermostat or water pump issue as it is outside of the warranty now and there's no apparent leaks or a/c problems, runs smoothly as it was. The only thing that's different is the coolant temperature gauge rising and dropping.
Last edited: