Retro fit Type Pressure Monitoring ?
- Thread starter P1BSW
- Start date
berty987
New member
Anything is possible if you have the money. You will need 4 off wheel pressure monitoring valves, 4 off wheel receivers, plus brackets and screws , plus the RDK tyre pressure monitoring control unit. You will probably need to install your own custom wiring loom as its not pre wired in the car. Then you need to get someone with a PWIS to recode the rear control module so the device is active and sensors paired to the wheel transmitters. Suspect you are looking at over 1000 pounds for the parts and labour to fit.
Well over 1000 pounds:
4 x Pressure Senders = 400
4 x Metal Valves = 64
4 x Wheel Receivers = 400
4 x Mounting Brackets for the Receivers = 20
1 x Control Unit = 170
2 x Bespoke wiring looms = 300
Labour I would allow 3 - 4 hours for the wiring, coding and wheel install = 600
If you get change out of 2K I would be very surprised.
There are after market kits that will provide most of the functionality except that it wont be integrated with the car systems.
I wanted to do the same as you but was told it's actually not possible to do!! by my OPC
This is your alternative http://tyresure.com/
The TyreSure system is a rebadged version of the system made by Orange Electronics. http://www.orangetpmsusa.com/
I bought my Orange system direct from the USA, and with a bit of discount was about £120 all-in. Works a treat, and I'm very happy with it.
I bought my Orange system direct from the USA, and with a bit of discount was about £120 all-in. Works a treat, and I'm very happy with it.
I bought a TyrePal system - costs about £199. TyrePal uses different sensors - they're replacement valve caps. I don't know which system is best. See www.tyrepal.co.uk
@ danofesher : are you happy with what you bought ?
I've had a look at the web-site and I like the idea of these rather than the ones recommended by Richard & daro911 (thanks guys) because it doesn't mean having the tyres off the rims. Given that I've just had new tyres all round I don't really fancy another trip to the tyre shop. Plus I don't like the idea of having to plug the other system into the cigar lighter all the time.
Given the cost of tyres and how easily they are damaged by running with a slow puncture (offers invited for a scrap 265/30/19 with 6mm tread) I definitely want something.
The other thing with the TyrePal ones is that I don't see how they can measure tyre temperatures very accurately, with the sensor being on the outside.
Personally, I don't like either type for different reasons.
As with the Porsche system and similar types they have a rather large part fixed within the tyre cavity so they can be susceptible to damage during tyre fitting and such, expensive replacement too. If a slow leak overnight say, then next day get the car out and the flat tyre breaks the body inside the tyre.
Any valve cap type opens the valve for the cap to read the pressure so if there is a fault develops in the cap the air will leave the tyre rapidly whereas the valve seals due to the pressure inside the tyre but if it's held open by the cap... Not to my mind safe.
As with the Porsche system and similar types they have a rather large part fixed within the tyre cavity so they can be susceptible to damage during tyre fitting and such, expensive replacement too. If a slow leak overnight say, then next day get the car out and the flat tyre breaks the body inside the tyre.
Any valve cap type opens the valve for the cap to read the pressure so if there is a fault develops in the cap the air will leave the tyre rapidly whereas the valve seals due to the pressure inside the tyre but if it's held open by the cap... Not to my mind safe.
The TyrePal caps certainly aren't small and someone did suggest that there'd be quite a bit of weight flying around (I only hope the designers did thorough safety checks!).
The system seems to measure pressures well but the temperatures can be suspect. Overall I'm happy with the system because it really is easy to fit (like the other system, it's good that it gives a warning if parameters go out of range).
I bought these to help me determine when my pressures get low given that I don't use the car very often (and my garage is too small to be able to check the pressures with the car in it). I may however remove the system and revert to checking the pressures more often.
Dan.
The system seems to measure pressures well but the temperatures can be suspect. Overall I'm happy with the system because it really is easy to fit (like the other system, it's good that it gives a warning if parameters go out of range).
I bought these to help me determine when my pressures get low given that I don't use the car very often (and my garage is too small to be able to check the pressures with the car in it). I may however remove the system and revert to checking the pressures more often.
Dan.
How timely!! Been looking at these systems
Know of a few ppl using Tyrepal on car trailers. Advantage is the units which are about 1/2" in diam can be moved from trailer to trailer. I too was suspect about the temp measurement, but if bearing gets hot or tyre overheats pressure and temp of air in tyre will increase and this unit should highlight this before it blows!
Must get a set...
Know of a few ppl using Tyrepal on car trailers. Advantage is the units which are about 1/2" in diam can be moved from trailer to trailer. I too was suspect about the temp measurement, but if bearing gets hot or tyre overheats pressure and temp of air in tyre will increase and this unit should highlight this before it blows!
Must get a set...
@danofesher
Don't suppose you've got a picture of them fitted that you could post ?
If you do decide to take them off & sell them I might be buyer. I have a set of the type mentioned @ post 7 by london987, I used to have them on an ML but I prefer a system that is usable whilst moving.
Don't suppose you've got a picture of them fitted that you could post ?
If you do decide to take them off & sell them I might be buyer. I have a set of the type mentioned @ post 7 by london987, I used to have them on an ML but I prefer a system that is usable whilst moving.
Just a quick update.
Yesterday whilst researching (Googling) this problem I came across this :
http://www.schraderelectronics.com/ProductDetailsPage.aspx?product=7
I've resigned myself to the fact that I'm going to have to go for an in-tyre sender because the external ones are clearly going to be too big but wanted a read out that didn't need to be either hard wired or fed by a cable from the cigarette socket. This seem to fit the bill and I found some good reviews of it.
I then found them available on eBay from a motor sport place in Wales at £149.99 or offer. I offered £125 and the guy has agreed. I've paid and will report back when it arrives and I've had it fitted. He has some more so if it's success I'll post details (if that's allowed on here).
Edited: To fix link
Yesterday whilst researching (Googling) this problem I came across this :
http://www.schraderelectronics.com/ProductDetailsPage.aspx?product=7
I've resigned myself to the fact that I'm going to have to go for an in-tyre sender because the external ones are clearly going to be too big but wanted a read out that didn't need to be either hard wired or fed by a cable from the cigarette socket. This seem to fit the bill and I found some good reviews of it.
I then found them available on eBay from a motor sport place in Wales at £149.99 or offer. I offered £125 and the guy has agreed. I've paid and will report back when it arrives and I've had it fitted. He has some more so if it's success I'll post details (if that's allowed on here).
Edited: To fix link
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