Tpms system for new rims

Nabz

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Hi all
Much appreciated if you can help with experience or knowledge.
I am looking to upgrade my 16" standard alloys to 18 8.0 on front and 8.5 on rear.
Would this be correct.
And the websites are asking wether it is has direct or in direct tpms.
Can someone elaborate please many thanks in advance.
 

LostKiwi

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If you can view individual tyre pressures you have direct TPMS. If you can't it's probably indirect.
Direct has sensors in each wheel. Indirect uses the abs speed sensors to detect when one wheel develops a consistently slower rotational speed compared to the others.
 
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Nabz

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Your the best. I thought logically that was the correct chain of thought just needed confirmation thanks
 

EmilysDad

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Direct tells you the actual tyre pressure & specifically which tyre is soft. Indirect tells you that one of the tyres is soft ..... go & find it. ;)
 

JBell

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Indirect uses the abs speed sensors to detect when one wheel develops a consistently slower rotational speed compared to the others.

It is indirect on a W204
 

Craiglxviii

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Is direct an option?
Not OEM but GLK showed his recent purchase, a new set of TPMS valves with a smartphone app that allows individual tyre pressures to be read. Around £50 for the lot IIRC. I’m planning on fitting that kit to my 215 in the grand scheme of things.
 

ZZZZ

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Yes, fitted the kit in January - four aftermarket TPMS valves, these work on BLE (Bluetooth Low Energy) connection, so the phone must support Bluetooth 4 protocols.

Works perfectly fine, the app (iPhone 6; iOS 11.3) is a bit slow to update - takes a couple of minutes for all four corners, other than that - no complains.

The cost of the kit was in fact, under £30, so pretty good value for money.

the kit:
28135491219_483a76c0bf_o.jpg


app:
25897908877_b2c50c9cd6_o.png


valve fitted:
40039798214_f2b50e5de1_o.jpg
 

LostKiwi

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Yes, fitted the kit in January - four aftermarket TPMS valves, these work on BLE (Bluetooth Low Energy) connection, so the phone must support Bluetooth 4 protocols.

Works perfectly fine, the app (iPhone 6; iOS 11.3) is a bit slow to update - takes a couple of minutes for all four corners, other than that - no complains.

The cost of the kit was in fact, under £30, so pretty good value for money.

the kit:
28135491219_483a76c0bf_o.jpg


app:
25897908877_b2c50c9cd6_o.png


valve fitted:
40039798214_f2b50e5de1_o.jpg
I might seriously think about getting one of them for Malcolm.....
 

LostKiwi

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I'll have the details with me, when I pop over
Speaking of which change of plan this week and next - I'll be in the office Thursday this week and Monday next.
 

ZZZZ

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Speaking of which change of plan this week and next - I'll be in the office Thursday this week and Monday next.
OK, I'm trying to source the pair of rear springs, at a better price, than MB listed one, once I got them, I'll text you.
 


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