Was driving my car while warm and gave it a good amount of gas maybe the 4000 RPM and all of a sudden a warning came on that said engine overheating and went into sort of a limp mode. I pulled into the parking lot shut the car off I didn't smell anything burning but I did hear the faint sound of some type a liquid moving throughout the engine compartment there were no leaks or anything nothing was dripping and it didn't snow Hot. I let it sit for five minutes turn the car back on and drove it home fine with no warning lights. The actual temperature gage read completely normal the whole time this was going on and after the fact so it was almost like it wasn't overheating but something tripped the warning message on the dash. Does this sound like a sensor issue ? Please help

 

One of my Flying Spurs does this intermittently, I believe I read on here it is a faulty EGT sensor that causes this to happen. I have yet to change mine, it comes on once every few months

 

It might be worth checking the coolant level in the header tank. I noticed mine was a bit low last summer.

Les.

 

If the temperature gauge shows good and you get the overheating warning light, then stop and start the engine. Then everything seems normal.

It could be a symptom of a bad EGT sensor on passenger side of the engine (US). This is not an uncommon problem.

 

Here a picture of it. To remove the nut on the bottom, a special tool is needed. however, it can be done with standard tools. You just have to grind a slot is a wrench

 

Here is what the tool should look like to remove the sensor

 

Thank you that helps a ton guys !!

 

....sorry to ask dumb question....is the EGT Sensor the brass looking nut below the orange tape...maybe it is angle of picture, but slot cut in tool doesn't look big enough to get around stem...I just want to be sure I am I.D. the correct nut...JimB

 

Hello Jim,
Yes that is the exhaust gas temperature sensor probe nut in red circle, you would slip the slot cut in the wrench over the wire section of the sensor in the green area.


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....Thank you Johnny...Exhaust Gas Temp Sensor duly noted...and to Jsupstarz did you have sensor replaced and did that shut off warning signal...JimB

 

I didn't yet , I drove the car like two weeks well into full temp and didn't get any warnings and gauge was normal and tonight it happened two times again , I took a picture, went into like a limp mode both times , the first time the warning lasted for 2 minutes I continued to drive the whole time and just shut off and it was fine the second time it lasted longer and I just shut the car off and parked it. I hope this is the issue. Take a look the temp gushed reads normal this was 3 minutes after the warning came on, opened the hood didn't smell hot AT ALL! No smoke or anything like it was normal

 

is there only 1 egt sensor, or is there 2 ?

 

There are two, one on each exhaust manifold.

 

Yup, there are 2 sensors. However sensor 1 is what usually causing the overheat message.

~ZaOs`

 

Hi everyone, joined the forum to ask the exact same thing. Did this resolve the issue?

My mechanic is saying it's the temperature sensor but he never hooked up a "VAG" as you call it? I have a 2006 flying spur, says it's overheating, goes limp mode for a bit and then goes out of limp mode after a minute. The gauges show temperatures are fine.

I hooked up my generic OBDII scanner and the only thing that showed up was P0456 which I think is the gas cap.

Part number would be useful, and whether or not I can grab it from volkswagen.