Official Operating temperature of an engine?
- Thread starter rG-tom
- Start date
I didn't say that.
The problem for the dealer is the "no diag code" which is different from a fault code, its a code that comes up on the diagnostic computer which is used when making a warranty claim, but they should be able to get round this by road testing the car and then printing a screenshot of the coolant temp from the computer which will be out of spec for a heated up engine
This is what annoyed me about dealers. Unless the car is throwing codes up, they simply aren't interested. These days it seems like no mechanic in dealer workshop actually does any investigative work, they simply plug it in to a computer and if the computer says all is ok, they tell you nothing is wrong. And charge you £100 for them to have plugged it in. If there is an unquantifiable error (or sometimes even if there is such as in this case!), such as the car doesn't feel right, is down on power, making a strange sound, is lumpy or isn't changing gear as smoothly expect a fight as they will more often than not refuse to acknowledge it without their precious fault codes.
Fault codes are meant to be used in conjunction with good investigative work to obtain a diagnosis, rather than as a substitute for investigative work, as they appear to be in this and most cases involving dealers.
Fault codes are meant to be used in conjunction with good investigative work to obtain a diagnosis, rather than as a substitute for investigative work, as they appear to be in this and most cases involving dealers.
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Caporegime
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The no fault code excuse is a load of bull, would BMW turn you away if your new car had a faulty wheel bearing because the ecu doesn't log a fault code?
I'd ask them to prove that 59deg is the standard running temperature by forcing them to take me out in another car with the same engine.
I'd ask them to prove that 59deg is the standard running temperature by forcing them to take me out in another car with the same engine.
I would be whipping a temp probe gun out, pointing it at a coolant pipe close to the engine and proclaiming 'DOES THAT LOOK LIKE 90 DEGREES TO YOU!'. They would probably still give you a bull story to send you on your way.
Caporegime
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Goes to show what sort of monkeys you pay for our days, computer says no.....
These people are simply fitters and nothing more.
I doubt its even as simple as that. They have to follow procedure and for work to be necessary there has to be a fault. They wont accept the data from the obd because that isnt where they would normally obtain the data from, the data they go by is DTCs.
Imagine them trying to justify to their boss or accounts or whoever why they paid XYZ to change the stat and various cooling parts, given that the boss or whoever will have no mechanical understanding.
It wont matter if the data is from the OBD or an infrared gun, they wont have a clue what its about, they wont know whats plausible and whats not
Imagine them trying to justify to their boss or accounts or whoever why they paid XYZ to change the stat and various cooling parts, given that the boss or whoever will have no mechanical understanding.
It wont matter if the data is from the OBD or an infrared gun, they wont have a clue what its about, they wont know whats plausible and whats not
Caporegime
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The manufacturers workshop manuals should detail the expected operating temperatures I would have thought?
Not just BMW, VW etc. we have this issue with Scania at work, once a truck gets to 250-300k miles (just over 2 years old usually) ballpark,the stat starts to fail, and the give away is a temperature guage sitting at 1/4 instead of 1/2. Alas, the computer won't pick up a fault code and they refuse to change the stat, and the truck usually stays this way until its replaced.
Whilst it still runs fine in terms of driving, the MPG can drop by 1-2MPG, not a lot until you appreciate these things only average ~8MPG when running perfectly!!
As said, what you get from cheaper to employ computer diagnostic reading fitters rather than expensive time served mechanics.
Whilst it still runs fine in terms of driving, the MPG can drop by 1-2MPG, not a lot until you appreciate these things only average ~8MPG when running perfectly!!
As said, what you get from cheaper to employ computer diagnostic reading fitters rather than expensive time served mechanics.
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![[TW]Fox](/data/man-of-honor/2009.png){kind=avatar}
i actually went to pick up the parts to do it myself last night from another dealership, who were part of the same group as the first so i hadn't approached them about the problem. Ended up having a chat with the parts manager about the stats etc and he said that fault stats often don't show a fault code as the ecu doesnt know it's broken as such.
he went and spoke to a servicing manager and they said there is a whole workshop procedure for testing stats without fault codes etc, and Ive dropped the car off this morning with them, and will have it back by Friday. Hopefully this will be the end of it but I'm still not holding my breath!
he went and spoke to a servicing manager and they said there is a whole workshop procedure for testing stats without fault codes etc, and Ive dropped the car off this morning with them, and will have it back by Friday. Hopefully this will be the end of it but I'm still not holding my breath!
Soldato
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That's awesome, menu 7.0 was also the engine temperature reading on my 75.
I'm beginning to think Rover just stole a load of BMWs hard work
But yeah, that's low. My 75 would hold 90 on a run, and when idle would creep up to 102 when the fan kicked in and took it back to 94.
I'm beginning to think Rover just stole a load of BMWs hard work
But yeah, that's low. My 75 would hold 90 on a run, and when idle would creep up to 102 when the fan kicked in and took it back to 94.
[TW]Fox;23840607 said:
Very true!
Whilst its not all of the trucks that do this, it's still a fair number.
Sometimes, the on-site fitters (who are not employed by Scania)at my depot will replace the stat themselves, the daft thing though, is unless Scania acknowledge the fault, the company cannot claim it as a faulty part. As everything needs order numbers for the paper audit trail & accounting it's often just ignored which is absurd, especially given the increased fuel costs of an engine thats running inefficiently.
This thread makes me glad I am not trying to maintain a full dealer service history.
Stat on GFs car was doing this but intermittantly, I had it changed (even though she tried to talk me out of it as "it is working fine now") as soon as it was done she rang me in a really cheerful tone to explain how hot the air was now coming out the cars heaters.
No messing with dealers, just took it to my mechanic and told him to change the stat and he did.
Stat on GFs car was doing this but intermittantly, I had it changed (even though she tried to talk me out of it as "it is working fine now") as soon as it was done she rang me in a really cheerful tone to explain how hot the air was now coming out the cars heaters.
No messing with dealers, just took it to my mechanic and told him to change the stat and he did.