Tyre pressure system

[Quabba]

Just looking for info. Ive got a 2013 e350 convertible.
Does the tyre pressure system not show the actual pressures? I thought it would.

The only option i have on the menu is to reset the system.

 

[Blobcat]

Depends on the age and options. Older systems without pressure monitoring valve stems utilised the speed signal from the ABS sensors. They note a speed difference due to a deflating tyre and pop up a warning so no pressure information.

 

[robin.large]

As bobcat says. This is actually good as you don't have to worry about TPMS valve stems etc.
I bought a Snooper TP1400 system. 4 X valve caps with sender. Readout unit for cigar / 12v outlet. Works really well.

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[EmilysDad]

Depends on the age and options. Older systems without pressure monitoring valve stems utilised the speed signal from the ABS sensors. They note a speed difference due to a deflating tyre and pop up a warning so no pressure information.

Isn't it just down to which options were ticked when new rather than the age of the vehicle?
I can personally live without £100 (?) per corner pressure/temp sensors

 

[Blobcat]

Isn't it just down to which options were ticked when new rather than the age of the vehicle?
I can personally live without £100 (?) per corner pressure/temp sensors

No, my 2016 E220 didn’t have tpms valves but still had pressure reading

 

[robin.large]

Isn't it just down to which options were ticked when new rather than the age of the vehicle?
I can personally live without £100 (?) per corner pressure/temp sensors

I paid £60 and there's some on eBay for £79 for the system.
They are very accurate. I keep unit plugged in to rear passenger 12v.
As I do a fair mileage per year I like to keep pressures spot on to avoid uneven tyre wear. It's personal preference though.
You can set the upper and lower pressure alarms yourself so can give a very early warning of issues.

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[EmilysDad]

No, my 2016 E220 didn’t have tpms valves but still had pressure reading

so it had a pressure /temp sensor in the wheels as I said .....

 

[EmilysDad]

I paid £60 and there's some on eBay for £79 for the system.
They are very accurate. I keep unit plugged in to rear passenger 12v.
As I do a fair mileage per year I like to keep pressures spot on to avoid uneven tyre wear. It's personal preference though.
You can set the upper and lower pressure alarms yourself so can give a very early warning of issues.

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You talking factory fit or aftermarket?

 

[robin.large]

Aftermarket. Snooper STP 1400.
https://www.maplin.co.uk/snooper-pi...-RFt5PkpUfis5ntyL8twXlLrSX0b7KxIaAp_tEALw_wcB

Works really well.

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[EmilysDad]

Aftermarket. Snooper STP 1400.
https://www.maplin.co.uk/snooper-pi...-RFt5PkpUfis5ntyL8twXlLrSX0b7KxIaAp_tEALw_wcB

Works really well.

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but OP was referring to factory

 

[robin.large]

but OP was referring to factory

He was. And I agreed. My 2014 AMG also has only wheel speed monitoring and no TPMS valves ( I only found out when I put new tyres on!) and not TPMS as such. So bought Snooper as an add on.

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[Quabba]

Thanks for the info guys. Must just be the speed monitoring version i have