Fault code - 00527 intake air temperature sensor G42

[RavH]

Hey all, new to the forum, only just purchased my new car Seat Leon 1.4 FR TSI manual facelift 2017 model.

I purchased Carista and did a diagnostic test and it came up with this fault code.

00527 - intake air temperature sensor G42.

Now the car runs perfectly fine to me no worries at all with performance or mpg (quite impressed actually) should I look to get this sensor replaced or let it be if the car is running fine?

Thank you in advance and looking forward to being a part of Seat Leon group

 

[SEAT Rule]

Hey all, new to the forum, only just purchased my new car Seat Leon 1.4 FR TSI manual facelift 2017 model.

I purchased Carista and did a diagnostic test and it came up with this fault code.

00527 - intake air temperature sensor G42.

Now the car runs perfectly fine to me no worries at all with performance or mpg (quite impressed actually) should I look to get this sensor replaced or let it be if the car is running fine?

Thank you in advance and looking forward to being a part of Seat Leon group

Hello there,

I've had a look on the SEAT ETKA parts site, but can't see any separate intake air temp sensor, the only thing it list's from what I can see is the MAP sensor which is fitted/attached to inlet manifold.

I've looked through this Forum and managed to find a thread with good info,
in the attached thread below look at the 5th post. It states the MAP sensor also measure's inlet manifold air temperature, as well as the mass air pressure/ volume inside the inlet manifold.

Where is the intake air temperature sensor?

Hi, I have Leon 1.6 16v 77kw. Yesterday, my VAG cable has finaly came, so now I'm learning how to read sensor data. But it looks like my intake air temperature (IAT) sensor is broken. Outside temperature is 15 degrees and the sensor is saying that it is 35 degrees! So I would like to...

www.seatcupra.net

MAP sensor
Part number 03G 906 051E & 03G 906 051M
SEAT Leon 1.4 TSI 150bhp with engine code CZDA or possibly CZEA

The same part is fitted to the 1.4 TSI 122bhp with engine code CZCA



In the attached picture it's number 5 the MAP sensor.


Hope this helps
Si

 

[RavH]

Hello there,

I've had a look on the SEAT ETKA parts site, but can't see any separate intake air temp sensor, the only thing it list's from what I can see is the MAP sensor which is fitted/attached to inlet manifold.

I've looked through this Forum and managed to find a thread with good info,
in the attached thread below look at the 5th post. It states the MAP sensor also measure's inlet manifold air temperature, as well as the mass air pressure/ volume inside the inlet manifold.

Where is the intake air temperature sensor?

Hi, I have Leon 1.6 16v 77kw. Yesterday, my VAG cable has finaly came, so now I'm learning how to read sensor data. But it looks like my intake air temperature (IAT) sensor is broken. Outside temperature is 15 degrees and the sensor is saying that it is 35 degrees! So I would like to...

www.seatcupra.net

MAP sensor
Part number 03G 906 051E & 03G 906 051M
SEAT Leon 1.4 TSI 150bhp with engine code CZDA or possibly CZEA

The same part is fitted to the 1.4 TSI 122bhp with engine code CZCA



In the attached picture it's number 5 the MAP sensor.


Hope this helps
Si

Damn Si, thank you for the detailed reply back, appreciate that!

So I have the 123bhp verison of 1.4 TSI engine on my 2017 Facelift so it would be CZCA. So how come you've stated two part numbers? Isn't it just the one sensor?

Also is it easy to fit myself or would I need to get it booked into a garage?

Just odd as car seems fine to drive no issues at all so can't be affecting it that much

 

[RUM4MO]

I'd note that fault code down, then clear it and see what happens in a week or so of driving. The parts listing shows it to be secured by 2 screws, and the connector needs uplugged - that is if that fault returns.

 

[SEAT Rule]

Damn Si, thank you for the detailed reply back, appreciate that!

So I have the 123bhp verison of 1.4 TSI engine on my 2017 Facelift so it would be CZCA. So how come you've stated two part numbers? Isn't it just the one sensor?

Also is it easy to fit myself or would I need to get it booked into a garage?

Just odd as car seems fine to drive no issues at all so can't be affecting it that much

To be honest I agree with what RUM4MO has said he's given you good advice there, definitely reset your fault code with your scan tool, and see if it reappears or not.

Regarding replacement of MAP sensor it's not too bad really, they sometimes have large plastic retaining clips, that are moulded to inlet manifold one each side of sensor, or will have a bolt as mentioned by RUM4MO.
Once the connector plug for sensor is disconnected, the plastic retaining clips can then be prised apart slightly, using your thumb and index finger, and the sensor will lift out - make sure the o-ring seal is still attached to old sensor, because if not you might have to carefully dig out the old one, from the guide channel where the sensor was fitted in manifold.

If the old sensor is tight to pull out,
you may want to use a small clean rag or tissue to clean the guide channel, and use a very small drop of clean WD40 or small bit of EP grease, to smear on o-ring seal on new sensor, this really helps to aid the new sensor when fitting it, especially like I say if the old one was tight to remove/pull out.

Once the new sensor is fitted and the connector plug is reattached, you'll need to use your scan tool, to check/clear the fault code if any.

If you're SEAT is the FR TSI model it'll probably be 140bhp or 150bhp, I only added the 122bhp one as a comparison to show you the item in question is used on other models. I typed up the two part numbers as they're the most common used on your model, both the part numbers are for the same item but
03G 906 051E is for early models from 2012 and the other number ending with M was used roughly mid 2015 onwards,
but like I say it's the same part so doesn't really matter which one you used so to speak.

Hope this helps
Si

 

[RavH]

To be honest I agree with what RUM4MO has said he's given you good advice there, definitely reset your fault code with your scan tool, and see if it reappears or not.

Regarding replacement of MAP sensor it's not too bad really, they sometimes have large plastic retaining clips, that are moulded to inlet manifold one each side of sensor, or will have a bolt as mentioned by RUM4MO.
Once the connector plug for sensor is disconnected, the plastic retaining clips can then be prised apart slightly, using your thumb and index finger, and the sensor will lift out - make sure the o-ring seal is still attached to old sensor, because if not you might have to carefully dig out the old one, from the guide channel where the sensor was fitted in manifold.

If the old sensor is tight to pull out,
you may want to use a small clean rag or tissue to clean the guide channel, and use a very small drop of clean WD40 or small bit of EP grease, to smear on o-ring seal on new sensor, this really helps to aid the new sensor when fitting it, especially like I say if the old one was tight to remove/pull out.

Once the new sensor is fitted and the connector plug is reattached, you'll need to use your scan tool, to check/clear the fault code if any.

If you're SEAT is the FR TSI model it'll probably be 140bhp or 150bhp, I only added the 122bhp one as a comparison to show you the item in question is used on other models. I typed up the two part numbers as they're the most common used on your model, both the part numbers are for the same item but
03G 906 051E is for early models from 2012 and the other number ending with M was used roughly mid 2015 onwards,
but like I say it's the same part so doesn't really matter which one you used so to speak.

Hope this helps
Si

Mine's definitely the 123bhp verison as road tax is £150 not £30 for 150bhp 1.4. But i will try resetting the fault code and see if it turns up again after i've driven for a week or so.

Thanks for your help here much appreciated

 

[SEAT Rule]

Mine's definitely the 123bhp verison as road tax is £150 not £30 for 150bhp 1.4. But i will try resetting the fault code and see if it turns up again after i've driven for a week or so.

Thanks for your help here much appreciated

No worries oh ok so yours is the 1.4 TSI 122bhp with engine code CZCA then.
Hope you get it sorted.

Si