Tyre pressure What pressure?

The maximum pressure will depend on the ply rating of the tyre and the working pressure will depend on the application.

A 4 ply tyre has a maximum pressure of around 32 psi and an 8 ply tyre about 65 psi. For many years this essential safety information has been moulded into the sidewalls.

1. The tyre has to be removed to fit the tyre valve/ sensor unit to the wheel. . Tyre dealers will do this for you when you supply the sensor.

2. Any renault dealer parts department can sell you a new sensor.

3. The new sensor has to be programmed to the car's tyre pressure monitoring system (TPMS).

3. Here is a list of information about the Renault Laguna tyre pressure sensors to assist you. The 2nd link below shows a picture of the tyre valve/sensor unit that fits to your wheel.

http://www.petercoopercarrepairs.co.uk/renault_laguna_mkii.htm

Renault Laguna Megane Tyre Pressure Sensor World Car Parts Store

Depends also on the kind of tyre.
For the maximum load of tyre nex kinds need next pressure , wich is called AT-pressure/maxloadpressure/reference-pressure , for up to maximum speed of tyre or if lower 160km/99m/h. This is not the maximum pressure of tyre.

Normal car tyre /standardload AT 2.5bar/36psi ( exeptions as low as 2.2)
XL/Reinforced/Extraload AT 2.9bar/42psi ( exeptions 2.8 and 3.0)
6PR( plyrating) /C-load AT 3.8bar/55psi EUR ( USA 50psi/3.4bar)
8PR/D-load AT 4.5/4.8 bar/ 65/69/70 psi
From E -load is not often used in Europe.

From this AT pressure you can calculate the needed pressure for lower loads . Made spreadsheet for it in wich I first add 10% to the assumed load before calculating.
Will give example picture

2002 VW Polo 1.4

Tyre: 165/70 R14
- Front tyre pressure: 2,2 ... 2,4 bar
- Rear tyre pressure: 2,0 ... 2,6 bar
- Spare tyre pressure: 4,2 bar

turn the gage around or somethin. It should be on their if not go get a new guage. And if you do not know what the psi should be at look on the tire. And dont put the psi to the max. if it says 35psi put like 32psi just leave a few pounds off the max psi

Yup nice question. For any vehicle accurate tyre pressure will give you better tyre life, low running cost, etc. Here is a chart for car tyres click here.
For bikes i havent found any chart. basically in india rear tyres having 100/90 18inch maximum tyre pressure is 32psi. front tyre having 2.75P or 80/90 18 inch uses 24 psi pressure. and do check your tyre pressure twice a month.

DEPENDING ON TYPE OF TYRES IT SHOULD BE 2.2BAR LOOK ON THE TYRE PRESSURE IS PRINTED ON THE TYRE

it doesn't look like the tyre is low. When I got to work and had a look the tyre seems a bit soft if you push and pull the tyre as if to check the wheel bearings the tyre seems to wobble on the rim. So I'm wondering if the pressure is right what is the norm tyre pressure on the back?,Id run that tyre 28-30 if it was on mine,,,

it doesn't look like the tyre is low. When I got to work and had a look the tyre seems a bit soft if you push and pull the tyre as if to check the wheel bearings the tyre seems to wobble on the rim. So I'm wondering if the pressure is right what is the norm tyre pressure on the back?,Id run that tyre 28-30 if it was on mine,,,