Anyone know what a ‘pressure sensor’ is?
Discussion
Having done a fair bit of work on cars and motorbikes in the distant past I always had at least a basic knowledge of what garages were telling me when some work needed doing. Until now…
My Skoda Superb (now two years old) has always had a propensity for strange warning lights, which for most of the time were intermittent - switch the ignition on and off a couple of times and they would go.
However at the last service I wanted it properly sorted and I was told a ‘pressure sensor’ was faulty but the new part was on back order. A month later the new part was fitted and the lights disappeared for a few days before coming on permanently. I am now told that there are two ‘pressure sensors’ and the other one has now failed. It is now on ‘back order’ etc. etc.
I’m mystified as to what these parts are. They don’t appear to be anything to do with the tyres - the warning lights are heralded by ‘lane departure not operational’ followed by EPC, emissions control (it’s a petrol plug in hybrid) and ACC (with Cruise control non-functional).
Other question would be why they are as rare as hen’s teeth? Surely something integral to warning systems wouldn’t be model or even brand specific?
Am I having my leg lifted by Skoda?
My Skoda Superb (now two years old) has always had a propensity for strange warning lights, which for most of the time were intermittent - switch the ignition on and off a couple of times and they would go.
However at the last service I wanted it properly sorted and I was told a ‘pressure sensor’ was faulty but the new part was on back order. A month later the new part was fitted and the lights disappeared for a few days before coming on permanently. I am now told that there are two ‘pressure sensors’ and the other one has now failed. It is now on ‘back order’ etc. etc.
I’m mystified as to what these parts are. They don’t appear to be anything to do with the tyres - the warning lights are heralded by ‘lane departure not operational’ followed by EPC, emissions control (it’s a petrol plug in hybrid) and ACC (with Cruise control non-functional).
Other question would be why they are as rare as hen’s teeth? Surely something integral to warning systems wouldn’t be model or even brand specific?
Am I having my leg lifted by Skoda?
Does it still drive and function normally other than the warning lights and systems being deactivated?
As I'm sure you're aware lots of systems have pressure sensors, but I am struggling to think of ones which would affect all the functions you listed, especially if it doesn't go into limp home mode or show any other symptoms
As I'm sure you're aware lots of systems have pressure sensors, but I am struggling to think of ones which would affect all the functions you listed, especially if it doesn't go into limp home mode or show any other symptoms
outnumbered said:
Brake pressure sensor seems the most likely ?
Brakes was my first thought, something in the vacuum booster maybe, but then surely it would go into limp home mode if inlet manifold pressure sensor had given up? and a fault on the hydraulic side of the brake system wouldn't trigger emissions control warningsSimple answers.
A pressure sensor is a device to measure pressure. There are several ways to do this and each uses different technology depending on what is being monitored and the level of accuracy needed. It is highly likely that sensors for different uses on the car are used for the same use across most if not all of the range. In the case of Skoda it is highly likely that they are common to multiple brands under the VAG flag.
The Skoda is fairly advanced with systems integration but some of the systems you are listing are unlikely to be using common sensors. I hated to say this but I would suspect that the dealer has run the diagnostic computer and the first remedy is to swap out some sensors. At 2 years old I hope this is all in warranty.
The reason for back order is likely to be that the aftermarket stock levels are still not built us properly and that all the parts being made are directed to the main production line.
A pressure sensor is a device to measure pressure. There are several ways to do this and each uses different technology depending on what is being monitored and the level of accuracy needed. It is highly likely that sensors for different uses on the car are used for the same use across most if not all of the range. In the case of Skoda it is highly likely that they are common to multiple brands under the VAG flag.
The Skoda is fairly advanced with systems integration but some of the systems you are listing are unlikely to be using common sensors. I hated to say this but I would suspect that the dealer has run the diagnostic computer and the first remedy is to swap out some sensors. At 2 years old I hope this is all in warranty.
The reason for back order is likely to be that the aftermarket stock levels are still not built us properly and that all the parts being made are directed to the main production line.
deadtom said:
outnumbered said:
Brake pressure sensor seems the most likely ?
Brakes was my first thought, something in the vacuum booster maybe, but then surely it would go into limp home mode if inlet manifold pressure sensor had given up? and a fault on the hydraulic side of the brake system wouldn't trigger emissions control warningsThe dealership don’t seem unduly concerned about me continuing to use it until they can repair it and the only practical features I seem to have lost are the Active Cruise Control and Lane Departure Warning (which I always have de=activated anyway as it drives me mad).
Starfighter said:
Simple answers.
A pressure sensor is a device to measure pressure. There are several ways to do this and each uses different technology depending on what is being monitored and the level of accuracy needed. It is highly likely that sensors for different uses on the car are used for the same use across most if not all of the range. In the case of Skoda it is highly likely that they are common to multiple brands under the VAG flag.
The Skoda is fairly advanced with systems integration but some of the systems you are listing are unlikely to be using common sensors. I hated to say this but I would suspect that the dealer has run the diagnostic computer and the first remedy is to swap out some sensors. At 2 years old I hope this is all in warranty.
The reason for back order is likely to be that the aftermarket stock levels are still not built us properly and that all the parts being made are directed to the main production line.
Yes it has another year of warranty - so hopefully they can sort it in that time. Just a pain having to keep trekking to the dealership, with seemingly no possibility of a courtesy car etc. The biggest mystery to me is why the lane departure warning seems to be behind this (or always appeared before the other lights when the warnings were intermittent). That would seem more of a visual or radar sensor than a ‘pressure’ one. Same with ACC.A pressure sensor is a device to measure pressure. There are several ways to do this and each uses different technology depending on what is being monitored and the level of accuracy needed. It is highly likely that sensors for different uses on the car are used for the same use across most if not all of the range. In the case of Skoda it is highly likely that they are common to multiple brands under the VAG flag.
The Skoda is fairly advanced with systems integration but some of the systems you are listing are unlikely to be using common sensors. I hated to say this but I would suspect that the dealer has run the diagnostic computer and the first remedy is to swap out some sensors. At 2 years old I hope this is all in warranty.
The reason for back order is likely to be that the aftermarket stock levels are still not built us properly and that all the parts being made are directed to the main production line.
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