Hello all. Someone knows what is the normal engine temperature of the 1.4 MPI 8V AQW? I have a obd device and the  max reading in open road is 82C. All cars that I know here work at 90C. The thermostat housing is new and with the old one the temperature was also 82C. Thank you.

Are you having temp issues if your driving steady and temp needle is at mid point or just below then your all good don't take readers as gospel and other factors can come into play.

3 hours ago, ruimvp said:

max reading in open road is 82C. All cars that I know here work at 90C.

By which meaning of "90C"? 90C on a VAG temperature gauge means "somewhere between 70C and 110C at the temperature sender". Does the OBD temperature rise when/if you go into a city or up a mountain that requires climbing in intermediate gears below highway speed?

4 hours ago, ruimvp said:

Hello all. Someone knows what is the normal engine temperature of the 1.4 MPI 8V AQW? I have a obd device and the  max reading in open road is 82C. All cars that I know here work at 90C. The thermostat housing is new and with the old one the temperature was also 82C. Thank you.

Did the new thermostat housing come with a new temperature sensor, or did you move the original sensor into the new housing?

 

The sensor is inaccurate, not the thermostat.

Hello and thank you for the answers. This subject kept in mind and I dismounted the thermostat. It is labeled with "80°". I think it means 80C since the temperature not pass 82C and it is located near the outlet of engine. I used the old sensor and the sensor that came with the thermostat and the readings are the same. I dismounted the housing and I am going talk to the shop person. I also talked to other shop owners that said that the right thermostat for this car should be rated to 87C or 88C. 

It's a very old engine design, it won't necessarily want to run at 90 degrees like modern engines.

 

Is there anything wrong with the car or are worrying about nothing?

This seems to be the correct thermostat for your AQW engine.

https://www.ebay.co.uk/itm/234340925912?hash=item368fcec1d8:g:iq8AAOSwuIxhvYdh

 

As you say, it is rated at 88C.

I came now from the shop. The person who talked to me is going to ask other shop of same group to sent them tomorrow 2 parts in stock of other brand. Tomorrow we will compare with this one. For note, he had in stock another equal item and the box it is  identified as Tropan. The housing, the thermostat and the temp sensor do not have any names, marks or codes. He gave me the possibility to reclaim. 

I used the topran one it's correct as the other guys are saying are you having any issues with the car over heating or anything like that if not then it seems you have no issue for us to give you advice on if the car is working correctly and you have no mil light or warning lights then your car is fine your looking for issues you don't have.

Have you looked at the sensor output on yours with VCDS or similar Stewart, to see what temperature it runs at?

I wouldn't be at all happy if my engine ran at 80C.

26 minutes ago, Wino said:

Have you looked at the sensor output on yours with VCDS or similar Stewart, to see what temperature it runs at?

I wouldn't be at all happy if my engine ran at 80C.

 

You have a lean burn engine designed to run hot, not an eighty year-old relic of the former soviet bloc.

4 hours ago, ruimvp said:

I dismounted the thermostat. It is labeled with "80°".

Well, that's actually right for your engine, and should be returning a service temperature around 90C.

Both run at stoic due to lambda control and cat(s).

5 minutes ago, Wino said:

Both run at stoic due to lambda control and cat(s).

? I can't find a definition of "stoic" that relates to chemistry.

stoichiometry - Google Search

Stoichiometric ratio (air fuel) = Lambda 1

2 hours ago, Wino said:

stoichiometry - Google Search

Ah, stoichemetric. Totally different word, which I do understand. I even agree the argument, but I'm not sure I see the relevance to a low running temperature unless you're suggesting that the car is running rich?

I was just pointing out the oddness of sepulchrave's comment about 'lean burn' engine in my car.

Air/fuel ratio is irrelevant, it's the design of the combustion chamber, inlet valve area and the compression ratio which dominate combustion efficiency.

3 minutes ago, Wino said:

I was just pointing out the oddness of sepulchrave's comment about 'lean burn' engine in my car.

 

Lean burn is nowhere near stoichemetric ratio, and you need EGR and direct injection to get really seriously lean.

So my engine isn't lean burn after all? 

Let's see what the OP finds out, and perhaps Stewart, rather than blether on irrelevantly about other stuff. 

11 minutes ago, Wino said:

So my engine isn't lean burn after all? 

Let's see what the OP finds out, and perhaps Stewart, rather than blether on irrelevantly about other stuff. 

 

Unless you have the 1.4 8V or the 2.0 8V then yes, you have a lean burn engine that runs higher temperatures and meets stricter emissions standards.

What I can say for certain is that these dumb smartphone apps are making people think their car has a problem when it doesn't.

 

It's becoming increasingly common frankly and we're starting to get these stupid rambling threads full of red herrings when the OP's car is running just fine.

 

If the 1.4 AQW ran as hot as modern tackle then it would blow its HG so it's a good thing it doesn't.

Lean burn = higher combustion temperatures but would the normal operating temperature of the coolant be higher by design?

 

80°c does seem rather low for thermostat fitted for a European country.