Collective wisdom required...

I hope you soon get sorted,a failing CPS on any canbus equipped vehicle can cause all sorts of issues that may appear unrelated. One of the prime advantages of CAN is that it shortens the time the signal takes to travel from sender to module,or wherever it goes,and for modern vehicles,especially with any form of exhaust gas aftertreatment this is more crucial than before,and the design of the electronic architecture of the machine takes this into account.
The problem in these instances is that years of roadside fault finding go out of the window,but it can't be long before the next generation throw up a proper fault code that uses a generic n umber,or code that can be read from ops manual,or simple code reader,easily carried.
 
They could have a diagnostic screen on the TFT, that could display the error codes, just like a 911 or any other plug-in diagnostic box.

You could even reset them using the wonderwheel. There’s no profit in that though, and you can’t have the general public messing with stuff they don’t understand...
 
They could have a diagnostic screen on the TFT, that could display the error codes, just like a 911 or any other plug-in diagnostic box.

You could even reset them using the wonderwheel. There’s no profit in that though, and you can’t have the general public messing with stuff they don’t understand...

Your quite right do more harm than good,perhaps telematics to the AD? In the future,one thing for sure this sort of tech is only going one way,and I know a lot are against Bus systems,but it should be more reliable in the first place.
All our machines,farm plant,use Bus systems and reliability in poor upkeep conditions is far improved over the old type of system.
 
You are paying for their incompetence I'm afraid. As has been already said, any competent mechanic would have run a diagnostics check first. Now you are paying for work that was not required.
 
No it does not, but when you burn it the chemical reaction creates some H2O as a by-product.

Yes there is, petrol generally has about 0.5% water mixed in, after this level it tends to separate out, this can increase if alcohol is mixed in,
It’s generally got water from transferring between storage tanks in rain, or condensing out of air,


In the good old days it used to separate out and fill the carbs, that doesn’t happen so much now, due to the ethanol added to petrol.

The combustion process does produce water, it doesn’t just come from moisture in the air, it comes from the chemical reaction.
 
Modern workshop protocol dictates that a diagnostic run,or downloading a machine report from the ECM or vehicle control module.is the first part of any repair. This is mandatory in our industry,especially if warranty involved.
It enables the engineer to see software versions currently installed and an overview of any faults present. Not being a BMW tech I don't what is avaliable to an AD,but would imagine similar,both product ranges,although totally different are German made.
Next time I go to the AD I will ask for my own benefit.
 
Wot he said. How much did they rush you?
 


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