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Tim in Scotland

Member Since: 23 May 2007
Location: The Land that time forgot
Posts: 3753

TPMS differences between models

On my D240 First Edition my spare wheel/ tyre registers on the TPMS monitor and requires a pressure in excess of 48psi to clear a low pressure warning. All 5 wheels have Grey tyre valves. The running tyres are inflated to 34/37 psi for light load running.

At the weekend I was off-roading with a D250 HSE and a D250 SE.
The HSE had 5 wheels with grey valves but only the 4 wheels on the road where shown on the TPMS screen………
The SE had the 4 running wheels with TPMS valves and pressures shown on the screen but the spare wheel had a silver valve stem so no TPMS sensor is fitted. The spare wasn’t shown on the TPMS screen at all, no error messages.

What is the legal situation running a full size spare without TPMS sensor fitted as a running tyre after a puncture on a car that is type approved to run with a full automatic TOMS as required by the construction rules? Pangea Green D250 90 HSE with Air Suspension, Off-road Pack, Towing Pack, Black Contrast roof , rear recovery eyes, Front bash plate, Classic flaps all round, extended wheel arch kit and a few bits from PowerfulUK Expel Clear Gloss PPF to come
2020 D240 1st Edition in Pangea Green with Acorn interior. Now gone - old faithful, no mechanical issues whatsoever ever but the leaks and rattles all over the place won’t be missed!

23rd Aug 2021 9:11am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17602

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Hmm, interesting question!

If you replace one of the normal running wheels with a non-TPMS wheel, what does the on-board TPMS system do?

23rd Aug 2021 9:30am

J77

Member Since: 04 Nov 2019
Location: Fife
Posts: 3428

Nothing other than show a warning. 24MY 90 D250 HSE, Tasman Blue

23rd Aug 2021 12:20pm

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