Join Date: Jul 2005
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Tyre pressure monitoring is NOT worth fitting as an aftermarket accessory.
Renault had lots of problems on earlier Lagunas, but later models seem to have little or no trouble.
Apart from buying 4 new valves and a control/receiver box the car would also need "programming " by a dealer. Valves alone are about £30 each!
There are several members on here who have had their monitoring system disabled because they had so much trouble. Also not all tyre fitters know how to replace tyres without damaging the valves. You cannot rotate the tyres ( well you can but) otherwise you will get a false reading of a faulty tyre, or the display will indicate a flat front tyre when in fact it is the rear one.
We have the system on our Privilege spec and it has always worked faultlessly, even after having the tyres replaced by a qwik fit type place. Even so I would not pay extra for the facility.
You can't beat actually checking the tyres yourself.
Currently in SportTourer's garage:
2010 Laguna III SportTourer Initiale Tom Tom.